ECU – The ECU is responsible for controlling the engine. The ECU accepts signals and commands from various switches and sensors. These signals are processed by the control unit and appropriate commands are sent to the fuel injection pump. This computer controls the fuel, air, and ignition systems on the engine.

John Deere ECU fault codes / John Deere ECU diagnostic trouble codes

NOTE:This page only indicates the meaning of the fault codes. For complete troubleshooting information, see the technical manuals.

ECU 000027.03 ( ECU 27.03 )— EGR Valve Position Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000027.04 ( ECU 27.04 )— EGR Valve Position Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000027.07 ( ECU 27.07 )— EGR Valve Actuator Fault
EGR valve actuator desired and actual position mismatch.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000028.00 (ECU 28.00)- Primary Analog Throttle Signal
Extremely High The foot throttle sensor signal is much lower than expected

ECU 000028.01 (ECU 28.01)- Primary Analog Throttle Signal Extremely Low
The foot throttle sensor signal is much lower than expected

ECU 000028.03 (ECU 28.03)- Primary Analog Throttle Signal Out of Range High
The foot throttle sensor signal is higher than the sensor high voltage specification

ECU 000028.04 (ECU 28.04)- Primary Analog Throttle Signal Out of Range Low
The foot throttle sensor signal is lower than the sensor low voltage specification

ECU 000029.03 (ECU 29.03)- Secondary Throttle Signal Out of Range High
The secondary throttle signal 3 is higher than the sensor high voltage specification

ECU 000029.04 (ECU 29.04)- Secondary Throttle Signal Out of Range Low
The secondary throttle signal 3 is lower than the sensor low voltage specification

ECU 000029.08 (ECU 29.08)- Secondary Throttle Signal Abnormal
The secondary throttle signal 2 is abnormal

ECU 000051.03 ( ECU 51.03 )— Air Throttle Actuator Position Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000051.04 ( ECU 51.04 )— Air Throttle Actuator Position Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000051.07 ( ECU 51.07 )— Air Throttle Actuator Fault
Air throttle actuator desired and actual position mismatch.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000051.14 ( ECU 51.14 )— Air Throttle Actuator and EGR Valve Connectors Swapped
The ECU detects that the air throttle actuator connector and the EGR valve connector are swapped.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000084.31 ( ECU 84.31 )- Incorrect CAN BUS Message, Wheel Speed from BCU
This diagnostic trouble code is generated when a data transfer problem occurs between the BCU and ECU. Reception of one, several or all of the CAN messages transmitted by the BCU is intermittent or nonexistent (intermittent reception could be due to a loose wire). The reason for this may be a wrong input value for the wheel speed sensor configuration, an incorrectly installed wheel speed sensor, a defective wheel speed sensor or a defective lead 5001. The diagnostic trouble code is generated when the BCU transmits a slower wheel speed to the ECU than the one which has been registered by the ECU itself.

ECU 000091.03 (ECU 91.03)- Primary Analog Throttle Signal Out of Range High
The foot throttle sensor is higher than the sensor high-voltage specification

ECU 000091.04 (ECU 91.04)- Primary Analog Throttle Signal Out of Range Low
The foot throttle sensor is lower than the sensor low voltage specification

ECU 000091.15 (ECU 91.15)- Primary Analog Throttle Signal Not Available
The foot throttle sensor is not available.

ECU 000094.03 (ECU 94.03)— Low-Pressure Fuel Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000094.04 (ECU 94.04)— Low-Pressure Fuel Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000094.16 (ECU 94.16)— Low-Pressure Fuel Signal Moderately High
Voltage is higher than expected. For details on CIU 2016, see Information on Serial Numbers and Content of CIU 2016 Improvement Program.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000094.17 (ECU 94.17)— Low-Pressure Fuel Signal Slightly Low
Voltage is slightly lower than expected. This diagnostic trouble code can also occur as a subsequent fault if the fuel pump does not function properly. For details on CIU 2016, see Information on Serial Numbers and Content of CIU 2016 Improvement Program.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000094.18 (ECU 94.18)— Low-Pressure Fuel Signal Moderately Low
Voltage is slightly lower than expected. This diagnostic trouble code can also occur as a subsequent fault if the fuel pump does not function properly. For details on CIU 2016, see Information on Serial Numbers and Content of CIU 2016 Improvement Program.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000097.03 ( ECU 97.03 )- Water-in-fuel-filter signal voltage high
Input voltage of water-in-fuel sensor exceeds specification for high sensor voltage. This indicates a short to 12 V.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000097.04 ( ECU 97.04 )- Water-in-fuel-filter signal voltage low
Input voltage of water-in-fuel-filter sensor is below the specification for low sensor voltage.This indicates a short to ground.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000097.16 ( ECU 97.16 )– Water In Fuel Detected
The water-in-fuel sensor has detected a moderately high amount of water in the fuel.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000098.09 (ECU 98.09)— Incorrect CAN Bus Message, Information from Engine Oil Level Sensor
Data transfer problem between the ECU and the engine oil level sensor.

ECU 000098.12 (ECU 98.12)— Engine Oil Level Sensor, Fault
Engine oil level sensor faulty.

ECU 000100.01 ( ECU 100.01 )- Engine Oil Pressure Extremely Low
On engines with engine oil pressure sensor, the ECU registers an extremely low oil pressure On engines with oil pressure switch, the ECU registers that the oil pressure switch is open after the engine speed has been above cranking speed for several seconds.

ECU 000100.02 (ECU 100.02)— Engine Oil Pressure Faulty
Engine oil pressure is not zero with engine OFF.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000100.03 ( ECU 100.03 )- Input voltage of engine oil pressure high
Input voltage of engine oil pressure sensor exceeds specification for high sensor voltage.This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000100.04 ( ECU 100.04 )- Input Voltage of Engine Oil Pressure Sensor Too Low
On engines with engine oil pressure sensor, the sensor input voltage is below the specification for low sensor voltage. On engines with oil pressure switch, the oil pressure switch is closed when key is in ON position and no engine speed is registered. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000100.18 ( ECU 100.18 )- Engine Oil Pressure Moderately Low
Engine oil pressure is moderately lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000100.31 ( ECU 100.31 )— Engine Oil Pressure Invalid
The ECU registers oil pressure at 0 rpm.
See ECU 000100.31—Engine Oil Pressure Invalid in relevant diesel engine CTM.

ECU 000101.00 (ECU 101.00)— Crankcase Pressure Signal Extremely High
Crankcase pressure is extremely high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000101.03 (ECU 101.03)— Crankcase Pressure Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000101.04 (ECU 101.04)— Crankcase Pressure Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000101.06 (ECU 101.06)— Engine Crankcase Pressure Signal Out of Range High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000101.16 (ECU 101.16)— Crankcase Pressure Moderately High
Crankcase pressure is moderately high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000102.02 ( ECU 102.02 )— Manifold Air Pressure Invalid
The ECU receives an invalid pressure information from the manifold air pressure sensor.
See ECU 000102.02—Intake Manifold Pressure Signal Invalid in relevant diesel engine CTM.

ECU 000102.03 ( ECU 102.03 )— Input Voltage of Manifold Air Pressure Sensor Too High
Input voltage of manifold air pressure sensor exceeds specification for high sensor voltage. This indicates a short to 12 volts.
See ECU 000102.03—Intake Manifold Pressure Signal Out of Range High in relevant diesel engine CTM.

ECU 000102.04 ( ECU 102.04 )— Input Voltage of Manifold Air Pressure Sensor Too Low
Input voltage of manifold air pressure sensor drops below specification for low sensor voltage. This indicates a short to ground.
See ECU 000102.04—Intake Manifold Pressure Signal Out of Range Low in relevant diesel engine CTM.

ECU 000102.07 (ECU 102.07)— Manifold Air Pressure Sensor Signal Fault
Manifold air pressure sensor signal is invalid.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000103.00 (ECU 103.00)— VGT Speed Signal Extremely High
Turbocharger speed signal is extremely high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000103.02 (ECU 103.02)— Turbocharger Speed Signal Invalid
Turbocharger speed is invalid.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000103.00 ( ECU 103.00 )— Turbocharger Overspeed (most severe)
The turbocharger speed registered by the ECU is above specification.
See ECU 000103.00—Turbo Speed Signal Extremely High in relevant diesel engine CTM.

ECU 000103.05 ( ECU 103.05 )— Turbocharger Speed Sensor Current Too Low
The ECU detects low current on the turbocharger speed sensor wiring. Circuit resistance too high. This indicates an open circuit.
See ECU 000103.05—Turbo Speed Sensor Circuit Has High Resistance in relevant diesel engine CTM.

ECU 000103.06 ( ECU 103.06 )— Turbocharger Speed Sensor Current Too High
The ECU detects high current on the turbocharger speed sensor wiring.

ECU 000103.08 ( ECU 103.08 )— Turbocharger Speed Invalid
The ECU detects a turbocharger speed that is not possible under the current operating conditions.
See ECU 000103.08—Turbocharger Speed Signal Invalid in relevant diesel engine CTM.

ECU 000103.31 ( ECU 103.31 )— Turbocharger Speed Missing
The ECU does not detect a signal coming from the turbocharger speed sensor.
See ECU 000103.31—Turbocharger Speed Signal Missing in relevant diesel engine CTM.

ECU 000105.00 ( ECU 105.00 )— Mixed Air Temperature of Exhaust Gas Recirculation (EGR) Extremely High
The ECU senses a mixed air temperature of exhaust gas recirculation above specification. Manifold air temperature is much higher than expected.
See ECU 000105.00—Intake Manifold Air Temperature Signal Extremely High in relevant diesel engine CTM.

ECU 000105.03 ( ECU 105.03 )— Input Voltage Too High for Mixed Air Temperature Sensor of Exhaust Gas Recirculation (EGR)
The exhaust gas recirculation mixed air temperature input voltage exceeds the specification for high sensor voltage. This indicates a short to 12 volts.
See ECU 000105.03—Intake Manifold Air Temperature Signal Out of Range High in relevant diesel engine CTM.

ECU 000105.04 ( ECU 105.04 )— Input Voltage Too High for Mixed Air Temperature Sensor in Exhaust Gas Recirculation (EGR)
The input voltage for the mixed air temperature of the exhaust gas recirculation is below than the lowest specified sensor voltage. This indicates a short to ground.
See ECU 000105.04—Intake Manifold Air Temperature Signal Out of Range Low in relevant diesel engine CTM.

ECU 000105.15 ( ECU 105.15 )— Exhaust Gas Recirculation (EGR) Mixed Air Temperature Slightly High
The ECU senses a mixed air temperature of exhaust gas recirculation above specification. Manifold air temperature signal is higher than expected.
See ECU 000105.15—Intake Manifold Air Temperature Signal Slightly High in relevant diesel engine CTM.

ECU 000105.16 ( ECU 105.16 )— Mixed Air Temperature of Exhaust Gas Recirculation (EGR) is Moderately High
The ECU senses a mixed air temperature of exhaust gas recirculation above specification .Manifold air temperature signal is higher than expected.
See ECU 000105.16—Intake Manifold Air Temperature Signal Moderately High in relevant diesel engine CTM.

ECU 000107.00 ( ECU 107.00 )— Engine Air Filter Restricted
This code will be generated when the ECU detects that the air cleaner restriction switch (B02) is closed. This may be caused by any of the following:
– Clogged engine air filter. Air filter excessively dirty.
– Circuit problem at air cleaner restriction switch (B02).
The description above is for Stage II engines only. For all other engine Tier/Stages, see ECU 000107.00—Air Filter Pressure Differential Extremely High in relevant diesel engine CTM.

ECU 000107.15 ( ECU 107.15 )— Air Cleaner Pressure Differential Slightly High
Air filter very dirty.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000107.16 ( ECU 107.16 )— Air Cleaner Pressure Differential Moderately High
Air filter very dirty.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000108.02 ( ECU 108.02 )— Barometric Air Pressure Invalid
The ECU receives an invalid pressure information from the barometric air pressure sensor. Barometric air pressure sensor in engine control unit is faulty.
See ECU 000108.02—Barometric Pressure Signal Invalid in relevant diesel engine CTM.

ECU 000108.07 (ECU 108.07)— Barometric Pressure Signal Mismatch
Barometric air pressure sensor in engine control unit is faulty.

ECU 000109.01 (ECU 109.01)— Coolant Pressure Signal Extremely Low
The coolant pressure is much lower than a defined threshold in the ECU.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000109.03 (ECU 109.03)— Coolant Pressure Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000109.04 (ECU 109.04)— Coolant Pressure Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000109.17 (ECU 109.17)— Coolant Pressure Signal Slightly Low
The coolant pressure is slightly lower than a defined threshold in the ECU.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000109.18 (ECU 109.18)— Coolant Pressure Signal Moderately Low
The coolant pressure is moderately lower than a defined threshold in the ECU.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000109.31 (ECU 109.31)— Coolant Pressure Signal Fault
The coolant pressure signal was determined to be slightly low during the previous operation cycle.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000110.00 ( ECU 110.00 )— Engine Coolant Temperature Extremely High
The ECU senses a coolant temperature above the specification.
See ECU 000110.00—Engine Coolant Temperature Signal Extremely High in relevant diesel engine CTM.

ECU 000110.03 ( ECU 110.03 )— Input Voltage of Engine Coolant Temperature Too High
The input voltage of the sensor for the engine coolant temperature exceeds the highest specified rating. This indicates a short to 12 volts.
See ECU 000110.03—Engine Coolant Temperature Signal Out of Range High in relevant diesel engine CTM.

ECU 000110.04 ( ECU 110.04 )— Input Voltage of Engine Coolant Temperature Too Low
The engine coolant temperature input voltage drops below the specification for low sensor voltage. This indicates a short to ground.
See ECU 000110.04—Engine Coolant Temperature Signal Out of Range Low in relevant diesel engine CTM.

ECU 000110.15 ( ECU 110.15 )— Engine Coolant Temperature Slightly High
The coolant temperature captured by the ECU is above the specification.
See ECU 000110.15—Engine Coolant Temperature Signal Slightly High in relevant diesel engine CTM.

ECU 000110.16 ( ECU 110.16 )— Engine Coolant Temperature Moderately High
The coolant temperature captured by the ECU is above the specification.
See ECU 000110.16—Engine Coolant Temperature Signal Moderately High in relevant diesel engine CTM.

ECU 000110.17 ( ECU 110.17 )— Engine Coolant Temperature Low (Least Severe Level)
The ECU senses an engine coolant temperature that is not rising to normal operating temperatures.
See ECU 000110.17—Engine Coolant Temperature Signal Slightly Low in relevant diesel engine CTM.

ECU 000111.01 (ECU 111.01)— Coolant Level Switch Activated at High Coolant Temperature
Low coolant level at high coolant temperature.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000111.07 (ECU 111.07)— Coolant Level Switch Fault
The switch indicates a lower coolant level than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000111.17 (ECU 111.17)— Coolant Level Switch Activated
Coolant level is low.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000111.18 (ECU 111.18)— Coolant Level Switch Activated at Moderate Coolant Temperature
Low coolant level at moderate coolant temperature.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000152.12 (ECU 152.12)— Control Unit Fault
Code Caused By: Engine control unit detects an unexpected reset it bootblock. ECU internal fault.
Control Unit Response: Limited Functions.

ECU 000152.14 (ECU 152.14)— Control Unit Fault
Code Caused By: Engine control unit detects an unexpected reset in the watchdog. ECU internal fault.
Control Unit Response: Limited Functions.

ECU 000152.16 (ECU 152.16)— Control Unit Fault
Code Caused By: Engine control unit detects an unexpected reset. ECU internal fault.
Control Unit Response: Limited Functions.

ECU 000157.01 (ECU 157.01)— Fuel Rail Pressure Signal Extremely Low
The fuel rail pressure is extremely low.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000157.02 (ECU 157.02)— Fuel Rail Pressure Signal Invalid
The ECU receives invalid pressure information from the fuel rail pressure sensor.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000157.03 ( ECU 157.03 )— Input Voltage Too High in Sensor for Fuel Rail Pressure
The input voltage of the sensor for the rail pressure exceeds the highest specified rating. This indicates a short to 12 volts.
See ECU 000157.03—Fuel Rail Pressure Signal Out of Range High in relevant diesel engine CTM.

ECU 000157.04 ( ECU 157.04 )— Fuel Rail Pressure Sensor Input Voltage Too Low
The input voltage of rail pressure sensor drops below the specification for low sensor voltage. This indicates a short to ground.
See ECU 000157.04—Fuel Rail Pressure Signal Out of Range Low in relevant diesel engine CTM.

ECU 000157.10 ( ECU 157.10 )— Fuel Rail Pressure Loss Detected
The ECU detects a sudden decrease in fuel pressure while engine is not injecting or pumping.
See ECU 000157.10—Fuel Rail Pressure Rate of Change Abnormal in relevant diesel engine CTM.

ECU 000157.12 (ECU 157.12)— Fuel Rail Pressure Faulty
The fuel rail pressure sensor detected a problem when measuring the fuel pressure.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000157.16 (ECU 157.16)— Fuel Rail Pressure Signal Moderately High
Fuel Rail pressure is moderately high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000157.17 ( ECU 157.17 )— Fuel Rail Pressure Not Sufficient
The ECU was not able to detect a fuel rail pressure of 10 MPa (100 bar) (1450 psi) after running the engine for approximately 3 seconds.
See ECU 000157.17—Fuel Rail Pressure Not Developed in relevant diesel engine CTM.

ECU 000157.18 (ECU 157.18)— Fuel Rail Pressure Signal Moderately Low
The fuel rail pressure signal is slightly lower than desired.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000158.12 (ECU 158.12)— Control Software Internal Fault
A fault occurred when the software was powered down.
For diagnostic procedure, see the relevant CTM for diesel engines.
Reaction of the control software: Limited or no function of the vehicle.

ECU 000158.17 ( ECU 158.17 )— ECU Power Down Error
The ECU is unable to complete proper power down procedures after detecting a key off condition.
See ECU 000158.17—ECU Power Down Error in relevant diesel engine CTM.

ECU 000160.02 ( ECU 160.02 )— Wheel Speed Signal Incorrect
This code will be generated when the ECU can neither receive the wheel speed via the CAN BUS signal nor via the direct line for more than 3 seconds.

ECU 000167.01 (ECU 167.01)- Charging System Voltage Extremely Low
The charging system voltage is much lower than expected

ECU 000167.05 (ECU 167.05)- Charging System Circuit Has High Resistance
The ECU detected high voltage on the charging system circuit.

ECU 000168.01 (ECU 168.01)— Engine Control Unit, Supply Voltage (BAT) Too Low
Supply voltage (BAT) below 9 V.
Reaction of the control software: Limited or no function of the control software.

ECU 000168.16 (ECU 168.16)— Engine Control Unit, Supply Voltage (BAT) Moderately High
Supply voltage (BAT) moderately high.
Reaction of the control software: Limited or no function of the control software.

ECU 000168.17 (ECU 168.17)— Engine Control Unit, Supply Voltage (BAT) Too Low
Supply voltage (BAT) is below 12.5 volts with engine speed above 1500 rpm.
Reaction of the control software: Limited or no function of the control software.

ECU 000168.18 (ECU 168.18)— Engine Control Unit, Supply Voltage (BAT) Moderately Low
Supply voltage (BAT moderately low.
Reaction of the control software: Limited or no function of the control software.

ECU 000174.00 ( ECU 174.00 )— Fuel Temperature Extremely High
The ECU senses a fuel temperature above the specification.
See ECU 000174.00—Fuel Temperature Signal Extremely High in relevant diesel engine CTM.

ECU 000174.03 ( ECU 174.03 )— Input voltage of fuel temperature is too high
The input voltage of the sensor for the fuel temperature exceeds the highest specified rating. This indicates a short to 12 volts.
See ECU 000174.03—Fuel Temperature Signal Out of Range High in relevant diesel engine CTM.

ECU 000174.04 ( ECU 174.04 )— Input voltage of fuel temperature is too low
The fuel temperature sensor input voltage drops below the specification for low sensor voltage. This indicates a short to ground.
See ECU 000174.04—Fuel Temperature Signal Out of Range Low in relevant diesel engine CTM.

ECU 000174.16 ( ECU 174.16 )— Fuel Temperature Moderately High
The ECU senses a fuel temperature above the specification.
See ECU 000174.16—Fuel Temperature Signal Moderately High in relevant diesel engine CTM.

ECU 000189.00 ( ECU 189.00 )— Engine speed derate
The ECU detects a condition that requires an engine speed derate.
See ECU 000189.00—Engine Speed Derate Condition Exists in relevant diesel engine CTM.

ECU 000189.31 (ECU 189.31)— Engine Speed Derate Condition Exists
The ECU detects a condition that requires an engine speed derate.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000190.00 ( ECU 190.00 )— Engine Overspeed Extreme
The diagnostic trouble code is generated when ECU detects that engine speed exceeds the maximum rpm (tractor ground speed). The engine speed (ground speed) must be reduced. An excessive speed is indicated that is not caused by the driving situation: Process the priority diagnostic codes. This diagnostic trouble code is generated when the tractor is driven downhill with a heavy trailer behind it which is pushing the tractor.
See ECU 000190.00—Engine Speed Extremely High in relevant diesel engine CTM.

ECU 000190.16 ( ECU 190.16 )— Engine Overspeed Moderate
The diagnostic trouble code is generated when ECU detects that engine speed exceeds the maximum rpm (tractor ground speed). The engine speed (ground speed) must be reduced. An excessive speed is indicated that is not caused by the driving situation: Process the priority diagnostic codes. This diagnostic trouble code is generated when the tractor is driven downhill with a heavy trailer behind it which is pushing the tractor

ECU 000237.02 ( ECU 237.02 )— VIN Information, Mismatch
The diagnostic trouble code is generated when the Vehicle Identification Number (VIN) from other control units is not the same.
NOTE: If any DTCs are stored indicating CAN messages are missing, diagnose those codes first.
Control Unit Response: Limited Function.

ECU 000237.13 ( ECU 237.13 )— VIN Information, Option
Code Invalid The diagnostic trouble code is generated when the vehicle identification number on the ECU does not match the vehicle identification number of the other control units.
NOTE: If any DTCs are stored indicating CAN messages are missing, diagnose those codes first.
Control Unit Response: Limited Function.

ECU 000237.31 ( ECU 237.31 )— VIN Information, Incorrect
The diagnostic trouble code is generated when the vehicle identification number from other control units is not received or incorrectly received. All active VIN participants have to send the programmed vehicle identification number to the ECU control unit at regular intervals.
NOTE: If any DTCs are stored indicating CAN messages are missing, diagnose those codes first.
Control Unit Response: Limited Function.

ECU 000412.00 ( ECU 412.00 )— Exhaust Gas Recirculation (EGR) Exhaust Temperature Extremely High
The ECU senses an exhaust gas recirculation exhaust temperature above specification. The EGR temperature is much higher than expected
See ECU 000412.00—EGR Temperature Signal Extremely High in relevant diesel engine CTM.

ECU 000412.03 ( ECU 412.03 )— Exhaust Gas Recirculation (EGR) Exhaust Temperature Sensor Input Voltage Too High
The exhaust gas recirculation exhaust temperature input voltage exceeds the specification for high sensor voltage. This indicates a short to 12 volts.
See ECU 000412.03—EGR Temperature Signal Out of Range High in relevant diesel engine CTM.

ECU 000412.04 ( ECU 412.04 )— Exhaust Gas Recirculation (EGR) Exhaust Temperature Sensor Input Voltage Too Low
The exhaust gas exhaust temperature input voltage drops below the specification for low sensor voltage. This indicates a short to ground.
See ECU 000412.04—EGR Temperature Signal Out of Range Low in relevant diesel engine CTM.

ECU 000412.15 ( ECU 412.15 )— EGR Temperature Signal Slightly High
The ECU senses an EGR exhaust temperature above specification.
See ECU 000412.15—EGR Temperature Signal Slightly High in relevant diesel engine CTM.

ECU 000412.16 ( ECU 412.16 )— Exhaust Gas Recirculation (EGR) Exhaust Temperature Moderately High
The ECU senses an exhaust gas recirculation exhaust temperature above specification.
See ECU 000412.16—EGR Temperature Signal Moderately High in relevant diesel engine CTM.

ECU 000611.03 ( ECU 611.03 )— Electronic Injector Wiring Shorted To Power Source
The ECU detects that injector wiring is shorted to a power source. Circuit of injection valves 1 to 3 open or shorted to 12 volts.
See ECU 000611.03—Injector Shorted to Power in relevant diesel engine CTM.

ECU 000611.04 ( ECU 611.04 )— Electronic Injector Wiring Shorted To Ground
The ECU detects that injector wiring is shorted to ground. Circuit of injection valves 1 to 3 shorted to ground.
See ECU 000611.04—Injector Shorted to Ground in relevant diesel engine CTM.

ECU 000612.03 (ECU 612.03)— Injection Valve Driver 2, Voltage Too High
Circuit of injection valves 4 to 6 open or shorted to 12 volts.

ECU 000612.04 (ECU 612.04)— Injection Valve Driver 2, Short To Ground
Circuit of injection valves 4 to 6 shorted to ground.

ECU 000613.03 (ECU 613.03)— Driver Of Fuel Pressure Control Valves, Voltage Too High
Circuit of fuel pressure control valves open or shorted to 12 volts.

ECU 000613.04 (ECU 613.04)— Driver Of Fuel Pressure Control Valves, Short To Ground
Circuit of fuel pressure control valves shorted to ground.

ECU 000613.31 (ECU 613.31)— Driver Of Fuel Pressure Control Valves Faulty
The ECU detected a fault in the circuit of the control valves.

ECU 000627.01 ( ECU 627.01 )— Electronic Injector Supply Voltage Lower than Expected
The ECU detects a voltage below specification at an ECU supply lead once the engine speed exceeds 1200 rpm.
See ECU 000627.01—Electronic Injector Supply Voltage Problem in relevant diesel engine CTM.

ECU 000629.02 (ECU 629.02)— Control Software Internal Fault
Error when reading the internal module (EEPROM).
Reaction of the control software: Limited or no function of the control software.

ECU 000629.12 ( ECU 629.12 )— ECU Error (EEPROM)
The ECU detects an internal problem. A fault occurred when the software was launched.
See ECU 000629.12—ECU Error in relevant diesel engine CTM.

ECU 000629.13 ( ECU 629.13 )— ECU error
The ECU detects an internal problem. A fault occurred when the software was launched.

ECU 000629.14 (ECU 629.14)— Control Software Internal Fault
A fault occurred when the software was powered down.
Reaction of the control software: Limited or no function of the control software.

ECU 000629.31 (ECU 629.31)— Control Software Internal Fault
A fault in the software occurred.
Reaction of the control software: Limited or no function of the control software.

ECU 000636.02 ( ECU 636.02 )— Input Noise in Pump Position Sensor for Camshaft Speed
The ECU detects excessive noise (extra pulses) on the pump position sensor input.
See ECU 000636.02—Engine Position Sensor Signal Invalid in relevant diesel engine CTM.

ECU 000636.05 ( ECU 636.05 )— Current Too Low for Camshaft Speed Sensor
The ECU detects low current in cabling for pump position sensor. Circuit resistance too high. This indicates an open circuit.
See ECU 000636.05—Engine Position Sensor Circuit Has High Resistance in relevant diesel engine CTM.

ECU 000636.06 ( ECU 636.06 )— Pump position sensor too high
The ECU detects high current in cabling for pump position sensor. Circuit resistance too low. This indicates a short to ground.
See ECU 000636.06—Engine Position Sensor Circuit Has Low Resistance in relevant diesel engine CTM.

ECU 000636.08 ( ECU 636.08 )— Pump Position Sensor Input Missing ( Camshaft Speed Missing)
The ECU does not detect the input signal for the pump position sensor. ( The ECU does not register a camshaft speed signal.)
See ECU 000636.08—Engine Position Sensor Signal Missing in relevant diesel engine CTM.

ECU 000636.10 ( ECU 636.10 )— Pattern Error in Input Signal for Camshaft Speed Sensor
The ECU detects a faulty signal pattern at the input of the pump position sensor. (The ECU detects an improper pattern or noise in the camshaft speed signal.)
See ECU 000636.10—Engine Position Signal Rate of Change Abnormal in relevant diesel engine CTM.

ECU 000637.02 ( ECU 637.02 )— Input Noise in Crankshaft Speed
The ECU detects excessive noise (extra pulses) at the input of the crankshaft position sensor.
See ECU 000637.02—Engine Timing Sensor Signal Invalid in relevant diesel engine CTM.

ECU 000637.05 ( ECU 637.05 )— Current Too Low for Crankshaft Speed Sensor
The ECU detects low current on the crank sensor wiring. Circuit resistance too high. This indicates an open circuit.
See ECU 000637.05—Engine Timing Sensor Circuit Has High Resistance in relevant diesel engine CTM.

ECU 000637.06 ( ECU 637.06 )— Current in pump position sensor too high
The ECU detects high current on the crank sensor wiring. Circuit resistance too low. This indicates a short to ground.
See ECU 000637.06—Engine Timing Sensor Circuit Has Low Resistance in relevant diesel engine CTM.

ECU 000637.07 ( ECU 637.07 )— Crank Position/Pump Position Timing Moderately Out of Sync
The ECU detects that the pump position and crank inputs are not in sync with each other. (camshaft speed sensor and the crankshaft speed sensor are not in sync with each other.)
See ECU 000637.07—Engine Timing and Position Signals Out of Sync in relevant diesel engine CTM.

ECU 000637.08 ( ECU 637.08 )— Crank Sensor Signal Input Missing (Crankshaft Speed Missing)
The ECU does not detect the crank sensor input. (The ECU does not register a crankshaft speed signal.)
See ECU 000637.08—Engine Timing Sensor Signal Missing in relevant diesel engine CTM.

ECU 000637.10 ( ECU 637.10 )— Crank Sensor Input Pattern Error
The ECU detects an improper pattern or noise in the crankshaft speed signal.
See ECU 000637.10—Crank Position Input Pattern Error in relevant diesel engine CTM.

ECU 000641.00 (ECU 641.00)— VGT Actuator Temperature Extremely High
The VGT actuator temperature is much higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000640.31 (ECU 640.31)— External Derate Commanded
Code Caused By: Steering health signal reporting a problem.
Control Unit Response: Function disabled (OFF)

ECU 000641.04 (ECU 641.04 )— Turbocharger Actuator Error
The turbo actuator has been disabled after numerous attempts to power the controller or to perform the actuator learn portion.
See ECU 000641.04—Turbo Actuator Error in relevant diesel engine CTM.

ECU 000641.05 (ECU 641.05 )— Current for Turbocharger Actuator too Low / Driver of VGT Actuator, Resistance Too High
This indicates an open circuit.

ECU 000641.06 (ECU 641.06)— Driver of VGT Actuator, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 000641.07 (ECU 641.07)— VGT Actuator Learned Value Error
The VGT actuator has failed the learn cycle on initialization.

ECU 000641.09 (ECU 641.09)— CAN Bus Message Cannot Be Received, Information from VGT Actuator
Data transfer problem between the ECU and the VGT actuator.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000641.12 (ECU 641.12 )— ECU/Turbocharger Actuator Communication Error (VGT Actuator Internal Fault)
The ECU and turbo actuator controller have lost communication. (The VGT actuator has detected an internal fault.)
See ECU 000641.12—ECU/Turbo Actuator Communication Error in relevant diesel engine CTM.

ECU 000641.13 ( ECU 641.13 )— Turbocharger Actuator Learned Value Error (VGT Actuator, Calibration Error)
The turbocharger actuator determines that the learned value is incorrect. (Calibration of the VGT actuator has failed.)
See ECU 000641.13—Turbo Actuator Learned Value Error in relevant diesel engine CTM.

ECU 000641.16 ( ECU 641.16 )— Turbocharger Actuator Temperature Moderately High
The VGT actuator temperature is slightly higher than a defined threshold in the ECU. This Code is set when the VGT actuator detects that its internal temperature is slightly high. The VGT actuator sends a message via the CAN communication system to the ECU stating that its internal temperature is slightly high. The ECU sets the fault.
See ECU 000641.16—Turbo Actuator Temperature Moderately High in relevant diesel engine CTM.
NOTE: If turbo actuator was recently replaced, turbo actuator coolant line may be pinched. Verify that hose is fully seated onto steel line on left side of engine and is not pinched. Refer to schematics that are tractor specific for circuit numbers.

ECU 000641.31 (ECU 641.31)— VGT Actuator Supply Voltage Fault
The VGT actuator has detected that its supply voltage is out of range high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000647.05 (ECU 647.05)— Proportional Solenoid Valve for Charge Air Cooler Hydraulic Motor, Current Too Low (Engine Fan Speed Increase Circuit Fault)
The diagnostic trouble code is generated if the ECU control software detects that the current at the proportional solenoid valve for charge air cooler hydraulic motor is too low. This indicates that the circuit is open. (Fan Output Drive 1 (fan speed increase) circuit is shorted or open.)
Control Unit Response: Limited or no function of the park lock.

ECU 000647.06 (ECU 647.06)— Proportional Solenoid Valve for Charge Air Cooler Hydraulic Motor, Current Too High
The diagnostic trouble code is generated if the ECU control software detects that the current at the proportional solenoid valve for charge air cooler hydraulic motor is too high. This indicates a grounded circuit.
Control software response: Limited or no function of the park lock.

ECU 000647.07 — Engine Fan Speed Decrease Circuit Fault
Code Caused By: Fan Output Drive 2 (fan speed decrease) circuit is shorted or open.
Control Unit Response: Limited Function.

ECU 000651.02 ( ECU 651.02 )— Cylinder No.1 Electronic Injector Part Number Invalid
The ECU detects that the part number of the injector installed or calibrated at cylinder no. 1 is incorrect.
See ECU 000651.02—Injector #1 Part # Data Invalid in relevant diesel engine CTM.

ECU 000651.05 ( ECU 651.05 )— Cylinder No.1 Electronic Injector Circuit Open, Resistance Too High
The ECU detects an open circuit in the electronic injector for cylinder no. 1.

ECU 000651.06 ( ECU 651.06 )— Short Circuit in Electronic Injector for Cylinder No. 1, Resistance Too Low
The ECU detects a short in the cylinder no.1 electronic injector circuit. This indicates a short to ground.

ECU 000651.07 ( ECU 651.07 )— Cylinder No.1 Electronic Injector Mechanical Failure
The fuel rail pressure does not drop while injecting fuel into cylinder no. 1.

ECU 000651.13 ( ECU 651.13 )— Cylinder No.1 Electronic Injector QR Code Invalid, Calibration Error
The ECU detects an incorrect QR Code was calibrated into the ECU.

ECU 000651.18 (ECU 651.18)— Injection Valve 1 Fault
Fuel flow of injection valve is lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000652.02 ( ECU 652.02 )— Invalid Part Number of Electronic Injector for Cylinder No. 2
The ECU detects that the part number of the injector installed or calibrated at cylinder no. 2 is incorrect.

ECU 000652.05 ( ECU 652.05 )— Open Circuit in Electronic Injector for Cylinder No.2, Resistance Too High
The ECU detects an open circuit in the electronic injector for cylinder no. 2.

ECU 000652.06 ECU 652.06 — Short Circuit in Electronic Injector for Cylinder No. 2, Resistance Too Low
The ECU detects a short in the electronic injector circuit for cylinder no. 2. This indicates a short to ground.

ECU 000652.07 ( ECU 652.07 )— Cylinder No.2 Electronic Injector Mechanical Failure
The fuel rail pressure does not drop at the injection of fuel to cylinder no.2.

ECU 000652.13 ( ECU 652.13 )— Invalid QR Code of Electronic Injector for Cylinder No. 2
The ECU detects an incorrect QR Code was calibrated into the ECU.

ECU 000652.18 (ECU 652.18)— Injection Valve 2 Fault
Fuel flow of injection valve is lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000653.02 ( ECU 653.02 )— Invalid Part Number of Electronic Injector for Cylinder No. 3
The ECU detects that the part number of the injector installed or calibrated at cylinder no. 3 is incorrect.

ECU 000653.05 ( ECU 653.05 )— Open Circuit in Electronic Injector for Cylinder No. 3, Resistance Too High
The ECU detects an open circuit in the electronic injector for cylinder no. 3.

ECU 000653.06 ( ECU 653.06 )— ShortCircuit in Electronic Injector for Cylinder No. 3, Resistance Too Low
The ECU detects a short in the electronic injector circuit for cylinder no. 3. This indicates a short to ground.

ECU 000653.07 ( ECU 653.07 )— Mechanical Failure of Electronic Injector for Cylinder No. 3
The fuel rail pressure does not drop while injecting fuel into cylinder no. 3.

ECU 000653.13 ( ECU 653.13 )— Cylinder No.3 Electronic Injector QR Code Invalid
The ECU detects an incorrect QR Code was calibrated into the ECU.

ECU 000653.18 (ECU 653.18)— Injection Valve 3 Fault
Fuel flow of injection valve is lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000654.02 ( ECU 654.02 )— Cylinder No.4 Electronic Injector Part Number Invalid
The ECU detects that the part number of the injector installed or calibrated at cylinder no. 4 is incorrect.

ECU 000654.05 ( ECU 654.05 )— Open Circuit in EUI for Cylinder No. 4, Resistance Too High
The ECU detects an open circuit in the electronic injector for cylinder no. 4.

ECU 000654.06 ( ECU 654.06 )— ShortCircuit in Electronic Injector for Cylinder No. 4, Resistance Too Low
The ECU detects a short in the electronic injector circuit for cylinder no. 4. This indicates a short to ground.

ECU 000654.07 ( ECU 654.07 )— Mechanical Failure of Electronic Injector for Cylinder No. 4
The fuel rail pressure does not drop while injecting fuel into cylinder no. 4.

ECU 000654.13 ( ECU 654.13 )— Invalid QR Code in Electronic Injector for Cylinder No. 4
The ECU detects an incorrect QR Code was calibrated into the ECU.

ECU 000654.18 (ECU 654.18)— Injection Valve 4 Fault
Fuel flow of injection valve is lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000655.02 ( ECU 655.02 )— Cylinder No. 5 Electronic Injector Part Number Invalid
The ECU detects an injector with an incorrect part number was installed or calibrated on cylinder no. 5.

ECU 000655.05 ( ECU 655.05 )— Cylinder No. 5 Electronic Injector Circuit Open, Resistance Too High
The ECU detects an open circuit in the electronic injector for cylinder no. 5.

ECU 000655.06 ( ECU 655.06 )— Cylinder No. 5 Electronic Injector Circuit Shorted, Resistance Too Low
The ECU detects a short in the cylinder no. 5 electronic injector circuit. This indicates a short to ground.

ECU 000655.07 ( ECU 655.07 ) — Cylinder No. 5 Electronic Injector Mechanical Failure
The fuel rail pressure does not drop at the injection of fuel to cylinder no. 5.

ECU 000655.13 ( ECU 655.13 )— Cylinder No. 5 Electronic Injector QR Code Invalid
The ECU detects that an incorrect QR Code was calibrated into the ECU.

ECU 000655.18 (ECU 655.18)— Injection Valve 5 Fault
Fuel flow of injection valve is lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000656.02 ( ECU 656.02 )— Cylinder No. 6 Electronic Injector Part Number Invalid
The ECU detects an injector with an incorrect part number was installed or calibrated on cylinder no. 6.

ECU 000656.05 ( ECU 656.05 )— Cylinder No. 6 Electronic Injector Circuit Open, Resistance Too High
The ECU detects an open circuit in the electronic injector for cylinder no. 6.

ECU 000656.06 ( ECU 656.06 )— Cylinder No. 6 Electronic Injector Circuit Shorted, Resistance Too Low
The ECU detects a short in the cylinder no. 6 electronic injector circuit. This indicates a short to ground.

ECU 000656.07 ( ECU 656.07 )— Cylinder No. 6 Electronic Injector Mechanical Failure
The fuel rail pressure does not drop at the injection of fuel to cylinder no. 6.

ECU 000656.13 ( ECU 656.13 )— Cylinder No. 6 Electronic Injector QR Code Invalid
The ECU detects that an incorrect QR Code was calibrated into the ECU.

ECU 000656.18 (ECU 656.18)— Injection Valve 6 Fault
Fuel flow of injection valve is lower than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 000676.03 ( ECU 676.03 )— Glow Plug Relay Voltage Too High
The ECU detects a glow plug relay output signal when the ECU has not energized the relay supply

ECU 000676.05 ( ECU 676.05 )— Glow Plug Relay Voltage Too Low (Relay for Electric Starting Aid, Current Too Low)
The ECU detects no glow plug relay output signal when the ECU has energized the relay supply lead. This indicates a circuit problem (open circuit) at the glow plug relay or a defective relay K02/01.
NOTE: The ECU uses the measured manifold air temperature to determine how long the glow plugs are supplied with power. As soon as the determined time has elapsed, the ECU switches off the relay for the electrical starting aid.
Reaction of the control software: Limited or no function of the starting aid.

ECU 000676.06 (ECU 676.06)— Relay for Electric Starting Aid, Current Too High
Circuit current too high. This indicates a short circuit to ground.
NOTE: The ECU uses the measured manifold air temperature to determine how long the glow plugs are supplied with power. As soon as the determined time has elapsed, the ECU switches off the relay for the electrical starting aid.
Reaction of the control software: Limited or no function of the starting aid.

ECU 000676.14 (ECU 676.14)— Cold Start Aid Signal Received When Not Expected
The ECU detects that the cold start aid relay output voltage is high when the ECU is not energizing the relay.
NOTE: The ECU uses the measured manifold air temperature to determine how long the glow plugs are supplied with power. As soon as the determined time has elapsed, the ECU switches off the relay for the electrical starting aid.
Reaction of the control software: Limited or no function of the starting aid.

ECU 000676.31 (ECU 676.31)— Cold Start Aid Relay Signal Not Received When Expected
The ECU detects that the cold start aid relay output voltage is low when the ECU is energizing the relay.
NOTE: The ECU uses the measured manifold air temperature to determine how long the glow plugs are supplied with power. As soon as the determined time has elapsed, the ECU switches off the relay for the electrical starting aid.
Reaction of the control software: Limited or no function of the starting aid.

ECU 000970.31 (ECU 970.31)— Engine Start Fault
Enable signal from the EIC to the ECU is missing. The engine starts but does not run. If this code is active, the engine can only be started 7 times in a row. This error can occur on tractors with or without immobilizer. Once the malfunction has been remedied, use the immobilizer key to switch on the ignition and wait at least 1 second, then start the engine.
IMPORTANT: If a wrong key was used for the immobilizer, this diagnostic trouble code is generated.
Reaction of the control software: Limited or no function of the vehicle.

ECU 001069.31 ( ECU 1069.31 )— Tire Size Error
The diagnostic trouble code is generated when the ECU calculates a wheel speed that does not match the available wheel sizes for the relevant model. The control unit limits the engine speed to 1950 rpm.

ECU 001075.02 (ECU 1075.02)— Fuel Pump Fault
Data transfer problem between the fuel pump and the ECU.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001075.04 (ECU 1075.04)— Fuel Pump, Voltage Too Low
Supply voltage (BAT) below 9 V.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001075.05 (ECU 1075.05)— Fuel Pump, Resistance Too High
Circuit resistance too high. This indicates an open circuit.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001075.06 (ECU 1075.06)— Fuel Pump, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001075.09 (ECU 1075.09)— CAN Bus Message Cannot Be Received, Information from Fuel Pump
A data transfer problem occurs between the ECU and the fuel pump.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001075.12 (ECU 1075.12)— Fuel Pump Fault
Fault in the fuel circuit of the low-pressure fuel pump (dirty pump or failed pump).
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.
Reaction of the control software: Limited or no function of the engine.

ECU 001075.15 (ECU 1075.15)— Fuel Pump, Temperature Too High
Fuel pump temperature higher than expected.
For pressure sensor diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001110.31 (ECU 1110.31)— Engine Protection Shutdown
If a diagnostic trouble code that requires the engine to be shut down is generated and no operator presence signal is present, the PDU control software sends a CAN Bus message to the ECU control software and the engine is shut down.
Reaction of the control software: Limited or no function of the vehicle.

ECU 001136.00 ( ECU 1136.00 )— ECU Temperature Extremely High
The ECU detects an internal temperature above specification.

ECU 001136.02 (ECU 1136.02)— Engine Control Unit, Temperature Invalid
The ECU detects that its internal temperature sensor signal is invalid.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001136.16 ( ECU 1136.16 )— ECU Temperature Moderately High
The ECU detects an internal temperature above specification.

ECU 001172.03 ( ECU 1172.03 )— Turbocharger Compressor Inlet Temperature Sensor Input Voltage Too High
The turbocharger compressor inlet temperature input voltage exceeds specification for high sensor voltage.

ECU 001172.12 (ECU 1172.12)— Intake Air Temperature Fault
Problem with measuring the intake air temperature.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001176.07 (ECU 1176.07)— Intake Air Pressure Mismatch
Problem with measuring the intake air pressure.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001176.12 (ECU 1176.12)— Intake Air Pressure Fault
Problem with measuring the intake air pressure.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001172.04 ( ECU 1172.04 )— Turbocharger Compressor Inlet Temperature Sensor Input Voltage Too Low
The turbocharger compressor inlet temperature input voltage drops below the specification for low sensor voltage.

ECU 001180.00 ( ECU 1180.00 )— Turbocharger Turbine Inlet Temperature Extremely High
The ECU senses a turbocharger turbine inlet temperature above specification.

ECU 001180.16 ( ECU 1180.16 )— Turbocharger Turbine Inlet Temperature Moderately High
The ECU senses a turbocharger turbine inlet temperature above specification.

ECU 001209.03 (ECU 1209.03)— Exhaust Manifold Pressure Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001209.04 (ECU 1209.04)— Exhaust Manifold Pressure Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001209.07 (ECU 1209.07)— Exhaust Manifold Pressure Mismatch
The ECU has detected an exhaust manifold pressure mismatch.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001321.05 (ECU 1321.05)— Engine Starter Solenoid Lockout Relay Circuit Has High Resistance
The ECU has detected a fault on the starter solenoid lockout relay circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.
Reaction of the control software: Limited or no function of the control software.

ECU 001321.06 (ECU 1321.06)— Engine Starter Solenoid Lockout Relay Circuit Has Low Resistance
The ECU has detected low resistance on the starter solenoid lockout relay drive circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.
Reaction of the control software: Limited or no function of the control software.

ECU 001321.16 (ECU 1321.16)— ECU has Detected that the Starter has been Engaged Too Long
The ECU has detected low resistance on the starter solenoid lockout relay drive circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.
Reaction of the control software: Limited or no function of the control software.

ECU 001322.31 (ECU 1322.31)— Engine Misfires Detected
The diagnostic trouble code is generated if the ECU detects misfires in one or more cylinders.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001347.03 ( ECU 1347.03 )— Pump Control Valve Current High
ECU detects high current in the pump control return lead.

ECU 001347.05 ( ECU 1347.05 )— Pump Control Valve Current Mismatch / Fuel Pressure Control Valve 1, Resistance Too High
The ECU is unable to match the measured pump current with the commanded pump current. / Circuit resistance too high. This indicates an open circuit.

ECU 001347.06 (ECU 1347.06)— Fuel Pressure Control Valve 1, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001347.07 ( ECU 1347.07 )— Fuel Rail Pressure Control Error / Control Valve 1 Fuel Pressure Deviation
The ECU detects fuel rail pressure 5 MPa (50 bar; 725 psi) above or below the expected pressure. / The ECU detects a fuel pressure deviation at control valve 1.

ECU 001348.05 (ECU 1348.05)— Fuel Pressure Control Valve 2, Resistance Too High
Circuit resistance too high. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001348.06 (ECU 1348.06)— Fuel Pressure Control Valve 2, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 001351.05 (ECU 1351.05)— Compressor Clutch for Trailer Air Brakes, Current Too Low
Circuit current too low. This indicates an open circuit.
Reaction of the control software: Limited or no function of the trailer air brakes.

ECU 001351.06 (ECU 1351.06)— Compressor Clutch for Trailer Air Brakes, Current Too High
Circuit current too high. This indicates a short to ground.
Reaction of the control software: Limited or no function of the trailer air brakes.

ECU 001550.05 (ECU 1550.05)— A/C Compressor Clutch, Current Too Low
Circuit current too low. This indicates an open circuit.

ECU 001550.06 (ECU 1550.06)— A/C Compressor Clutch, Current Too High
Circuit current too high. This indicates a short to ground.

ECU 001485.02 (ECU 1485.02)- ECU Main Relay Invalid
The ECU has an internal feedback error from the main ECU relay

ECU 001569.31 ( ECU 1569.31 )— Fuel derate (Engine in Derate Condition)
Fuel derate. (The engine is in derate condition.)

ECU 001639.01 (ECU 1639.01)— Proportional Solenoid Valve for Charge Air Cooler, Speed Not Available
The ECU does not detect any rotational speed signal.
Reaction of the control software: Limited or no function of the proportional solenoid valve.

ECU 001639.16 (ECU 1639.16)— Proportional Solenoid Valve for Charge Air Cooler, Speed Moderately Increased
The signal for rotational speed is moderately higher than expected.
Reaction of the control software: Limited or no function of the proportional solenoid valve.

ECU 001639.18 (ECU 1639.18)— Proportional Solenoid Valve for Charge Air Cooler, Speed Low
The ECU detects a low rotational speed.
Reaction of the control software: Limited or no function of the proportional solenoid valve.

ECU 001761.01 (ECU 1761.01)— DEF Tank Empty
DEF tank fluid level extremely low.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001761.03 (ECU 1761.03)— DEF Tank Fluid Level Sensor, Voltage Too High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001761.04 (ECU 1761.04)— DEF Tank Fluid Level Sensor, Voltage Too Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001761.17 (ECU 1761.17)— DEF Tank Fluid Level Moderately Low
DEF tank fluid level below 10 percent.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 001761.18 (ECU 1761.18)— DEF Tank Fluid Level Low
DEF tank fluid level below 0 percent.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002003.09 ( ECU 2003.09 )— Incorrect CAN BUS Message, CAN Message from EPC or TCU
This diagnostic trouble code is generated when a data transfer problem occurs between the TCU/EPC and ECU control units. Reception of CAN messages transmitted by TCU/EPC is intermittent or nonexistent (intermittent reception could be due to a loose wire).

ECU 002005.09 ( ECU 2005.09 )— Incorrect CAN BUS Message, CAN Message from UIC
This diagnostic trouble code is generated when a data transfer problem occurs between the UIC and ECU. Reception of CAN messages concerning general transmission information transmitted by UIC is intermittent or nonexistent (intermittent reception could be due to a loose wire).

ECU 002006.09 (ECU 2006.09)— Incorrect CAN Bus Message, Information from EIC Control Software
The diagnostic trouble code is generated if a data transfer problem occurs between the EIC control software and the ECU control software. Reception of messages sent on the CAN Bus by the control software is intermittent or non-existent. This indicates an open circuit in the CAN Bus, a short circuit or faulty CAN Bus terminating resistors.
Control software response: Limited or no function of the control software.

ECU 002006.13 (ECU 2006.13)— VIN Information Mismatch
The vehicle identification number between the EIC control software and the ECU control software does not match. This diagnostic trouble code is only generated for vehicles with immobilizer.
Reaction of the control software: Limited function of the vehicle.

ECU 002006.14 (ECU 2006.14)— VIN Information Mismatch
The vehicle identification number between the EIC control software and the ECU control software does not match. This diagnostic trouble code is only generated for vehicles with immobilizer.
Reaction of the control software: Limited function of the vehicle.

ECU 002006.19 (ECU 2006.19)— VIN Information Mismatch
The vehicle identification number between the EIC control software and the ECU control software does not match. This diagnostic trouble code is only generated for vehicles with immobilizer.
Reaction of the control software: Limited function of the vehicle.

ECU 002025.09 (ECU 2025.09)— Incorrect CAN Bus Message, Information from ATC/ETC Control Software
The diagnostic trouble code is generated if a data transfer problem occurs between the ATC/ETC control software and the ECU control software. Reception of messages sent on the CAN Bus by the control software is intermittent or non-existent. This indicates an open circuit in the CAN Bus, a short circuit or faulty CAN Bus terminating resistors.
Control software response: Limited or no function of the control software.

ECU 002033.09 ( ECU 2033.09 )— Incorrect CAN BUS Message, CAN Message from BCU
This diagnostic trouble code is generated when a data transfer problem occurs between the BCU and ECU. Reception of the CAN messages from BCU is intermittent or nonexistent (intermittent reception could be due to a loose wire).

ECU 002033.14 ( ECU 2033.14 )— Communication problem between ECU and BCU
This diagnostic code is generated whenever the ECU detects a communication with the BCU.

ECU 002033.19 ( ECU 2033.19 )— Communication Problem between ECU and BCU
This diagnostic trouble code is generated if the ECU detects a communication problem with the BCU.

ECU 002071.09 (ECU 2071.09)— Incorrect CAN Bus Message, Information from CCU Control Software
The diagnostic trouble code is generated if a data transfer problem occurs between the CCU control software and the ECU control software. Reception of messages sent on the CAN Bus by the control software is intermittent or non-existent. This indicates an open circuit in the CAN Bus, a short circuit or faulty CAN Bus terminating resistors.
Control software response: Limited or no function of the control software.

ECU 002629.03 (ECU 2629.03)— Compressor Outlet Temperature Signal Out Of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002629.04 (ECU 2629.04)— Compressor Outlet Temperature Signal Out Of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002630.00 ( ECU 2630.00 )— Exhaust Gas Recirculation (EGR) Fresh Air Temperature Extremely High (Charge Air Cooler Outlet Temperature Signal Extremely High)
The ECU senses an exhaust gas recirculation fresh air temperature above specification. (Charge air cooler outlet temperature extremely high.)
Reaction of the control software: Limited or no function of the engine.

ECU 002630.03 ( ECU 2630.03 )— Exhaust Gas Recirculation (EGR) Fresh Air Temperature Sensor Input Voltage Too High (Charge Air Cooler Outlet Temperature Signal Out of Range High)
The exhaust gas recirculation fresh air temperature input voltage exceeds the specification for high sensor voltage. (This indicates a short to 12 volts.)

ECU 002630.04 ( ECU 2630.04 )— Exhaust Gas Recirculation (EGR) Fresh Air Temperature Sensor Input Voltage Too Low (Charge Air Cooler Outlet Temperature Signal Out of Range Low)
The exhaust gas recirculation fresh air temperature input voltage drops below the specification for low sensor voltage. (This indicates a short to ground.)

ECU 002630.15 ( ECU 2630.15 )— Exhaust Gas Recirculation (EGR) Fresh Air Temperature Slightly High (Charge Air Cooler Outlet Temperature Signal Slightly High)
The ECU senses an exhaust gas recirculation fresh air temperature above specification. (The charge air cooler outlet temperature is slightly higher than expected.)

ECU 002630.16 ( ECU 2630.16 )— Exhaust Gas Recirculation (EGR) Fresh Air Temperature Moderately High (Charge Air Cooler Outlet Temperature Signal Moderately High)
The ECU senses an exhaust gas recirculation fresh air temperature above specification. (The charge air cooler outlet temperature is slightly higher than expected.)

ECU 002659.01 (ECU 2659.01)— NOx Based EGR Flow Correction Extremely Low
The ECU has detected that the NOx based EGR flow correction factor has reached a threshold that indicates tailpipe out NOx is out of emissions compliance.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002659.02 ( ECU 2659.02 )— Exhaust Gas Recirculation (EGR) Flow/Temperature Mismatch
The ECU senses a mismatch between the exhaust gas recirculation flow and temperature.

ECU 002659.03 (ECU 2659.03)— EGR Flow Signal Out of Range High
This indicates a short to 12 volts.

ECU 002659.04 (ECU 2659.04)— EGR Flow Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002659.14 (ECU 2659.14)— EGR Flow Signal Fault
The EGR flow signal is significantly different than the calculated flow based on temperature sensors.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002659.15 ( ECU 2659.15 )— Exhaust Gas Recirculation (EGR) Flow Rate Slightly High
The ECU detects exhaust gas recirculation flow when the exhaust gas recirculation valve is closed.

ECU 002659.17 ( ECU 2659.17 )— Exhaust Gas Recirculation (EGR) Flow Rate Slightly Low
The ECU does not detect exhaust gas recirculation flow when the valve is open.

ECU 002659.18 (ECU 2659.18)— NOx Based EGR Flow Correction Moderately Low
The ECU has detected that the NOx based EGR flow correction factor has reached a threshold indicating the
EGR flow venturi requires cleaning.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002790.16 ( ECU 2790.16 )— Turbocharger Compressor Outlet Temperature Moderately High
The ECU senses a turbocharger compressor outlet temperature above specification.

ECU 002791.02 ( ECU 2791.02 )— Exhaust Gas Recirculation (EGR) Valve Position Invalid
The ECU detects the exhaust gas recirculation valve is not able to achieve desired position. Most probable cause is a stuck open or closed valve.

ECU 002791.03 ( ECU 2791.03 )— Exhaust Gas Recirculation (EGR) Valve Signal Out Of Range High (OORH)
The exhaust gas recirculation valve position signal exceeds the highest specification.

ECU 002791.04 ( ECU 2791.04 )— Exhaust Gas Recirculation (EGR) Valve Signal Out Of Range Low (OORL)
The exhaust gas recirculation valve position signal exceeds the lowest specification.

ECU 002791.05 (ECU 2791.05)— EGR Valve Actuator, Current Too Low
Circuit current too low. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002791.06 (ECU 2791.06)— EGR Valve Actuator, Current Too High
Circuit current too high. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002791.07 ( ECU 2791.07 )— Exhaust Gas Recirculation (EGR) Valve Control Error
The ECU detects that the exhaust gas recirculation valve is not responding or is out of adjustment. (EGR valve actuator desired and actual position mismatch during a learn.)

ECU 002791.13 ( ECU 2791.13 )— Exhaust Gas Recirculation (EGR) Valve Out of Calibration
The ECU detects the exhaust gas recirculation valve is not able to achieve desired position.

ECU 002791.14 ( ECU 2791.14 )— Exhaust Gas Recirculation (EGR) Valve Shut Down

ECU 002791.31 ( ECU 2791.31 )— Exhaust Gas Recirculation (EGR) Calibration Error
The ECU detects the exhaust gas recirculation valve is not able to achieve desired position.

ECU 002795.03 — VGT Actuator, Voltage Too High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002795.04 — VGT Actuator, Voltage Too Low
This indicates a short circuit to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002795.07 ( ECU 2795.07 )— Turbocharger Actuator Position Mismatch (VGT Actuator Fault)
The ECU senses a mismatch between the actual and desired turbocharger actuator position.

ECU 002795.10 (ECU 2795.10)— Calculated Rate of Change of VGT Actuator Abnormal
The calculated rate of change is higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002795.13 (ECU 2795.13)— VGT Actuator, Calibration Error
Calibration of the VGT actuator has failed.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002795.31 (ECU 2795.31)— VGT Actuator Fault
VGT actuator is not in the desired position.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002797.03 (ECU 2797.03)— Injection Valve Supply Voltage 1, Voltage Too High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002797.05 (ECU 2797.05)— Injection Valve Supply Voltage 1, Resistance Too High
Circuit resistance too high. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002797.06 (ECU 2797.06)— Injection Valve Supply Voltage 1, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002798.03 (ECU 2798.03)— Injection Valve Supply Voltage 2, Voltage Too High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002798.05 (ECU 2798.05)— Injection Valve Supply Voltage 2, Resistance Too High
Circuit resistance too high. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 002798.06 (ECU 2798.06)— Injection Valve Supply Voltage 2, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003031.03 (ECU 3031.03)— DEF Tank Fluid Temperature Signal Out of Range High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003031.04 (ECU 3031.04)— DEF Tank Fluid Temperature Sensor, Voltage Too Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003031.12 (ECU 3031.12)— DEF Tank Fluid Tank Temperature Error
The temperature sensor for the DEF tank fluid has detected a problem with measuring the DEF tank fluid temperature.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003216.09 (ECU 3216.09)— CAN Bus Message Cannot Be Received, Information from Aftertreatment Inlet NOx Sensor
Data transfer problem between the ECU and the aftertreatment inlet NOx sensor.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003216.12 (ECU 3216.12)— Aftertreatment Inlet NOx Sensor Faulty
The aftertreatment inlet NOx sensor has detected a problem with the measurement.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003216.14 (ECU 3216.14)— Aftertreatment Inlet NOx Sensor Faulty
The aftertreatment inlet NOx sensor has detected a problem with the measurement.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003226.09 (ECU 3226.09)— CAN Bus Message Cannot Be Received, Information from Aftertreatment Outlet NOx Sensor
Data transfer problem between the ECU and the aftertreatment outlet NOx sensor.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003226.12 (ECU 3226.12)— Aftertreatment Outlet NOx Sensor Faulty
The aftertreatment outlet NOx sensor has detected a problem with the measurement.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003226.14 (ECU 3226.14)— Aftertreatment Outlet NOx Sensor Faulty
The aftertreatment outlet NOx sensor has detected a problem with the measurement.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003246.00 (ECU 3246.00)— DPF Outlet Temperature Extremely High
The exhaust filter temperature module has detected an extremely high DPF outlet temperature.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003246.12 (ECU 3246.12)— DPF Outlet Temperature Fault
The exhaust filter temperature module has detected a problem with measuring DPF outlet temperature.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003251.00 (ECU 3251.00)— DPF Differential Pressure Sensor Fault
The DPF differential pressure sensor is not responding or the ECU has detected an exhaust flow and DPF differential pressure correlation problem.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003251.02 (ECU 3251.02)— DPF Differential Pressure Signal Invalid
The ECU has detected an exhaust flow and DPF differential pressure relationship problem.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003251.03 (ECU 3251.03)— DPF Differential Pressure Signal Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003251.04 (ECU 3251.04)— DPF Differential Pressure Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003251.07 (ECU 3251.07)— DPF Differential Pressure Sensor Fault
DPF differential pressure too high with engine off.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003353.31 (ECU 3353.31)— Alternator Fault
The ECU control software detects that the alternator is not driven. This may be caused by a defective alternator, worn or defective belt or other components that are driven by the belt.
Reaction of the control software: Limited or no function of the control software.

ECU 003361.03 (ECU 3361.03)— DEF Dosing Injector Signal Out of Range High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003361.04 (ECU 3361.04)— DEF Dosing Injector Signal Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003361.05 (ECU 3361.05)— DEF Dosing Injector Circuit Has High Resistance
Circuit resistance too high. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003361.06 (ECU 3361.06)— DEF Dosing Injector Circuit Has Low Resistance
Circuit resistance too low. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003361.07 (ECU 3361.07)— DEF Dosing Injector Position Invalid
DEF dosing injector does not reach position commanded by ECU.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003361.31 (ECU 3361.31)— DEF Dosing Injector Active Without Injection
The ECU has detected no DEF pressure drop even though the dosing injector was commanded to open.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003464.05 (ECU 3464.05)— Air Throttle Actuator, Resistance Too High
Circuit resistance too high. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003464.06 (ECU 3464.06)— Air Throttle Actuator, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003464.07 (ECU 3464.07)— Air Throttle Actuator Fault
Air throttle actuator desired and actual position mismatch.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003464.13 (ECU 3464.13)— Air Throttle Actuator Calibration Error
Air throttle actuator not calibrated.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003465.05 (ECU 3465.05)— Air Throttle Actuator, Resistance Too High
Circuit resistance too high. This indicates an open circuit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003465.06 (ECU 3465.06)— Air Throttle Actuator, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003465.07 (ECU 3465.07)— Air Throttle Actuator Fault
Air throttle actuator desired and actual position mismatch.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003465.13 (ECU 3465.13)— Air Throttle Actuator Calibration Error
Air throttle actuator not calibrated.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003473.03 (ECU 3473.03)— Actuator Signal Out of Range High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003473.04 (ECU 3473.04)— Actuator Signal Out of Range Low
This indicates a short circuit to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003473.07 (ECU 3473.07)— Air Throttle Signal, Fault
Air throttle actuator desired and actual position mismatch.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003509.03 ( ECU 3509.03 )— Sensor Supply 1 Voltage Too High
The ECU detects a supply voltage above specification in the ECU 5 volt supply circuit. This indicates a short to 12 volts.

ECU 003509.04 ( ECU 3509.04 )— Sensor Supply 1 Voltage Low
The ECU detects a supply voltage below specification in the ECU 5 volt supply circuit. This indicates a short circuit to ground.

ECU 003510.03 ( ECU 3510.03 )— Sensor Supply #2 Voltage High
The ECU detects a supply voltage above specification in the ECU 5 volt supply circuit. This indicates a short to 12 volts.

ECU 003510.04 ( ECU 3510.04 )— Sensor Supply #2 Voltage Low
The ECU detects a supply voltage below specification in the ECU 5 volt supply circuit. This indicates a short circuit to ground.

ECU 003511.03 (ECU 3511.03)— Sensor Supply Voltage 3 Out of Range High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003511.04 (ECU 3511.04)— Sensor Supply Voltage 3 Out of Range Low
This indicates a short circuit to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003512.03 (ECU 3512.03)— Sensor Supply Voltage 4 Out of Range High
This indicates a short to 12 volts.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003512.04 (ECU 3512.04)— Sensor Supply Voltage 4 Out of Range Low
This indicates a short to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003513.03 ( ECU 3513.03 )— Sensor Supply Voltage 5 Too High
The ECU detects a supply voltage above specification in the ECU 5 volt supply circuit. This indicates a short to 12 volts.

ECU 003513.04 ( ECU 3513.04 )— Sensor Supply Voltage 5 Too Low
The ECU detects a supply voltage below specification in the ECU 5 volt supply circuit. This indicates a short to ground.

ECU 003514.03 (ECU 3514.03)— Sensor Supply Voltage 6 Out of Range High
This indicates a short to 12 V.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003514.04 (ECU 3514.04)— Sensor Supply Voltage 6 Out of Range Low
This indicates a short circuit to ground.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003516.01 (ECU 3516.01)— Aftertreatment DEF Concentration Extremely Low
The DEF tank fluid concentration is extremely low.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003516.07 (ECU 3516.07)— Aftertreatment DEF Concentration Sensor Obstructed
The DEF tank fluid concentration sensor has detected debris obstructing the concentration sensor.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003516.09 (ECU 3516.09)— Aftertreatment DEF Concentration Sensor Loss of Communication
The DEF tank fluid concentration sensor has detected a problem with measuring DEF tank fluid concentration.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003516.12 (ECU 3516.12)— Aftertreatment DEF Concentration Sensor Error
The DEF concentration sensor has detected a problem with measuring DEF concentration.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003516.14 (ECU 3516.14)— Aftertreatment DEF Contaminated
The aftertreatment DEF concentration sensor has detected an incorrect fluid in the DEF tank.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003516.16 (ECU 3516.16)— Aftertreatment DEF Concentration Moderately High
The DEF tank fluid concentration is moderately high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003517.07 (ECU 3517.07)— DEF Tank Fluid Level Sensor Obstructed
The DEF tank level sensor has detected debris obstructing the level sensor.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003517.12 (ECU 3517.12)— DEF Tank Fluid Level Error
The DEF tank fluid level sensor has detected a problem with measuring DEF tank fluid level.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003597.01 (ECU 3597.01)— Fuel Injector High Voltage Supply Extremely Low
The ECU has detected that the injector high voltage supply is extremely low, but the unswitched battery voltage to the ECU is in the correct range.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003695.14 (ECU 3695.14)- Diesel Particulate Filter Regeneration Special Instructions (Calculated Soot Level High and Regeneration Disabled)
DPF regeneration is required, but inhibit switch is active. (The calculated amount of soot in the diesel particulate filter indicates that the amount of soot in the diesel particulate filter is high, and the status of exhaust filter cleaning is “disabled”.)

ECU 003711.14 (ECU 3711.14)— Diesel Particulate Filter Active Regeneration Inhibited Due to Low Exhaust Gas Temperature
DOC inlet temperature target value not reached during exhaust temperature management.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003711.31 (ECU 3711.31)— Diesel Particulate Filter Active Regeneration Inhibited Due to Low Exhaust Gas Temperature
DOC inlet temperature target value not reached during exhaust temperature management.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003719.00 (ECU 3719.00)— Calculated Soot Level Extremely High
The calculated DPF soot level indicates that the soot level in the DPF is extremely high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003719.10 (ECU 3719.10)— Calculated Soot Load Rate of Change Abnormal
The calculated DPF soot load rate is higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003719.13 (ECU 3719.13)— Excessive DPF Recovery Attempts
The ECU has detected that the number of DPF recovery attempts without an active regeneration has exceeded the ECU limit.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003719.14 (ECU 3719.14)— Calculated Soot Level Extremely High
The calculated DPF soot level indicates that the soot level in the DPF is extremely high.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003719.15 (ECU 3719.15)— Calculated Soot Level Slightly High
The calculated DPF soot level is slightly higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003719.16 (ECU 3719.16)— Calculated Soot Level Moderately High
The calculated DPF soot level is moderately higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003720.15 (ECU 3720.15)— Calculated Ash Level Slightly High
The calculated ash level is slightly higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003720.16 (ECU 3720.16)— Calculated Ash Level Moderately High
The calculated ash level is moderately higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003936.00 (ECU 3936.00)— Calculated Unintended Combustibles in DPF Extremely High
The ECU has detected multiple times that the temperature differential between DOC outlet and DPF outlet indicates unintended combustibles within the DPF.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003936.15 (ECU 3936.15)— Calculated Unintended Combustibles in DPF Slightly High
The calculated unintended combustible level is slightly higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 003936.16 (ECU 3936.16)— Calculated Unintended Combustibles in DPF Moderately High
The calculated unintended combustible level is moderately higher than expected.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 004334.00 (ECU 4334.00)— DEF Dosing Unit Pressure Extremely High
The DEF dosing unit pressure is extremely high.

ECU 004334.01 (ECU 4334.01)— DEF Dosing Unit Pressure Extremely Low
The DEF dosing unit pressure is extremely low.

ECU 004334.03 (ECU 4334.03)— DEF Dosing Unit Signal Out of Range High
This indicates a short to 12 volts.

ECU 004334.04 (ECU 4334.04)— DEF Dosing Unit Signal Out of Range Low
This indicates a short to ground.

ECU 004334.11 (ECU 4334.11)— DEF Dosing Unit Pressure Signal Fault
The DEF dosing unit failed to relieve system pressure during a shut-off sequence or a new suction sequence.

ECU 004334.16 (ECU 4334.16)— DEF Dosing Unit Pressure Moderately High
The DEF dosing unit pressure is moderately high.

ECU 004334.18 (ECU 4334.18)— DEF Dosing Unit Pressure Moderately Low
The DEF dosing unit pressure is moderately low.

ECU 004334.31 (ECU 4334.31)— DEF Dosing Unit Pressure Fault
The DEF dosing unit pressure signal exceeds a threshold value during the suction process.

ECU 004341.05 (ECU 4341.05)— DEF Dosing Unit Pressure Line Heater, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 004341.06 (ECU 4341.06)— DEF Dosing Unit Pressure Line Heater, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 004343.05 (ECU 4343.05)— DEF Dosing Unit Return Line Heater, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 004343.06 (ECU 4343.06)— DEF Dosing Unit Return Line Heater, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 004345.05 (ECU 4345.05)— DEF Dosing Unit Supply Line Heater, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 004345.06 (ECU 4345.06)— DEF Dosing Unit Supply Line Heater, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 004360.07 (ECU 4360.07)— SCR Inlet Temperature Fault
The SCR temperature module has detected a problem with measuring the inlet temperature.
For diagnostic procedure, see the relevant CTM for diesel engines:

ECU 004360.12 (ECU 4360.12)— SCR Inlet Temperature Faulty
The SCR temperature module has detected a problem with measuring the inlet temperature.

ECU 004363.12 (ECU 4363.12)— SCR Outlet Temperature Faulty
The SCR temperature module has detected a problem with measuring the outlet temperature.

ECU 004363.12 (ECU 4363.12)— SCR Outlet Temperature Faulty
The SCR temperature module has detected a problem with measuring the outlet temperature.

ECU 004364.01 (ECU 4364.01)— Catalytic Converter Efficiency of SCR System Extremely Low
The NOx value at the outlet of the SCR system is too high.
NOTE: A low-quality diesel emission fluid (DEF) can cause this diagnostic trouble code.

ECU 004364.17 (ECU 4364.17)— Catalytic Converter Efficiency of SCR System Slightly Low
The NOx value at the outlet of the SCR system is too high to start regeneration.

ECU 004364.18 (ECU 4364.18)— Catalytic Converter Efficiency of SCR System Moderately Low
The NOx value at the outlet of the SCR system is too high to start regeneration.

ECU 004366.05 (ECU 4366.05)— DEF Tank Heater Coolant Valve, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 004366.06 (ECU 4366.06)— DEF Tank Heater Coolant Valve, Resistance Too Low
Circuit resistance too low. This indicates a short circuit to ground.

ECU 004366.16 (ECU 4366.16)— DEF Tank Heater Coolant Control Valve is Stuck Open
DEF tank temperature higher than expected.

ECU 004366.18 (ECU 4366.18)— DEF Tank Heater Coolant Control Valve is Stuck Closed
Thawing of DEF tank takes too long.

ECU 004376.05 (ECU 4376.05)— DEF Dosing Unit Reversing Valve, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 004376.06 (ECU 4376.06)— DEF Dosing Unit Reversing Valve, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 004376.14 (ECU 4376.14)— DEF Dosing System Powerdown Fault
The DEF dosing system could not be powered down properly.

ECU 004490.12 (ECU 4490.12)— Intake Air Humidity Fault
The intake air sensor has detected a problem with measuring intake air humidity.

ECU 004765.00 (ECU 4765.00)— DOC Inlet Temperature Extremely High
DOC inlet temperature higher than expected.

ECU 004765.12 (ECU 4765.12)— DOC Inlet Temperature Fault
The exhaust filter temperature module has detected a problem with measuring DOC inlet temperature.

ECU 004766.12 (ECU 4766.12)— DOC Outlet Temperature Fault
The exhaust filter temperature module has detected a problem with the DOC outlet temperature.

ECU 004766.15 (ECU 4766.15)— DOC Outlet Temperature Slightly High
The DOC outlet temperature is slightly high.

ECU 004766.16 (ECU 4766.16)— DOC Outlet Temperature Moderately High
The DOC outlet temperature is moderately high.

ECU 004766.17 (ECU 4766.17)— DOC Outlet Temperature Slightly Low
The DOC outlet temperature is slightly low.

ECU 004766.18 (ECU 4766.18)— DOC Outlet Temperature Moderately Low
The DOC outlet temperature is moderately low.

ECU 004795.13 (ECU 4795.13)— Exhaust Filter Calibration Fault
Incorrect calibration code in ECU.

ECU 004795.31 (ECU 4795.31)— DPF Missing
Diesel particulate filter is missing.

ECU 005018.00 (ECU 5018.00)— Calculated Unintended Combustibles in DOC Extremely High
The ECU has detected multiple times that the temperature differential between DOC inlet and DOC outlet
indicates unintended combustibles within the DOC.

ECU 005018.16 (ECU 5018.16)— Calculated Unintended Combustibles in DOC Moderately High
The calculated unintended combustible level is moderately higher than expected.

ECU 005125.03 (ECU 5125.03)— Sensor Supply Voltage 7 Out of Range High
This indicates a short to 12 V.

ECU 005125.04 (ECU 5125.04)— Sensor Supply Voltage 7 Out of Range Low
This indicates a short circuit to ground.

ECU 005126.03 (ECU 5126.03)— Sensor Supply Voltage 8 Out of Range High
This indicates a short to 12 V.

ECU 005126.04 (ECU 5126.04)— Sensor Supply Voltage 8 Out of Range Low
This indicates a short circuit to ground.

ECU 005127.03 (ECU 5127.03)— Sensor Supply Voltage 9 Out of Range High
This indicates a short to 12 V.

ECU 005127.04 (ECU 5127.04)— Sensor Supply Voltage 9 Out of Range Low
This indicates a short circuit to ground.

ECU 005128.05 (ECU 5128.05)— Sensor Supply Voltage 10, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 005128.06 (ECU 5128.06)— Sensor Supply Voltage 10, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 005246.00 (ECU 5246.00)— SCR Operator Stage #3 Derate Notification
Informational fault to notify the operator how long they have before the machine reaches final derate.

ECU 005246.13 (ECU 5246.13)— SCR Operator Derate Notification Active
Informational fault to notify the operator that the SCR system derate timer is active.

ECU 005246.14 (ECU 5246.14)— SCR Operator Stage #4 Derate Notification
Informational fault to notify the operator how long they have before the machine reaches final derate.

ECU 005246.14 (ECU 5246.14)— SCR Operator Stage #4 Derate Notification
Informational fault to notify the operator how long they have before the machine reaches final derate.

ECU 005246.16 (ECU 5246.16)— SCR Operator Stage #2 Derate Notification
Informational fault to notify the operator how long they have before the machine reaches final derate.

ECU 005246.31 (ECU 5246.31)— SCR Operator Final Derate Notification
Informational fault to notify the operator that the machine has reached final derate.

ECU 005298.01 (ECU 5298.01)— DOC Efficiency Extremely Low
The ECU has detected that the DOC efficiency is extremely low.

ECU 005298.18 (ECU 5298.18)— DOC Efficiency Moderately Low
This code is currently being used for engineering purposes only.

ECU 005435.06 (ECU 5435.06)— DEF Dosing Unit Pump Circuit Has Low Resistance
Circuit resistance too low. This indicates a short to ground.

ECU 005435.09 (ECU 5435.09)— CAN Bus Message Cannot Be Received, Information from DEF Dosing Unit
Data transfer problem between the ECU and the DEF dosing unit.

ECU 005435.11 (ECU 5435.11)— DEF Dosing Unit Pump Circuit Fault
The DEF dosing unit pump motor is unable to build pressure when priming.

ECU 005435.14 (ECU 5435.14)— DEF Dosing Unit Pump Motor Fault
The DEF dosing unit pump motor sends an incorrect signal.

ECU 005435.31 (ECU 5435.31)— DEF Dosing Unit Pump Fault
Supply pressure of DEF dosing unit pump is unstable.

ECU 005571.05 (ECU 5571.05)— High Resistance in Circuit for Fuel Rail Pressure Surge Relief Valve
Circuit resistance too high. This indicates an open circuit.

ECU 005571.06 (ECU 5571.06)— Low Resistance in Circuit for Fuel Rail Pressure Surge Relief Valve
Circuit resistance too low. This indicates a short to ground.

ECU 005743.09 (ECU 5743.09)— Data Cannot Be Received, Information from SCR Temperature Module
Data transfer problem between the ECU and the SCR temperature module.

ECU 005745.05 (ECU 5745.05)— DEF Dosing Unit Heater, Resistance Too High
Circuit resistance too high. This indicates an open circuit.

ECU 005745.06 (ECU 5745.06)— DEF Dosing Unit Heater, Resistance Too Low
Circuit resistance too low. This indicates a short to ground.

ECU 005745.18 (ECU 5745.18)— DEF Dosing Unit Heater, Temperature Moderately Low
The DEF dosing unit heater outlet temperature is moderately low.

ECU 005745.31 (ECU 5745.31)— DEF Dosing Unit Heater, Temperature Faulty
The DEF dosing unit heater on-time is faulty.

ECU 520629.31 — Control Software Internal Fault
ECU internal fault.
Reaction of the control software: Limited or no function of the control software.

ECU 521192.11 — Engine Shutdown, Time-Out
The diagnostic trouble code is generated if:
– the key is held in the ELX position for more than 2 seconds with the engine running.
– the voltage supply (ELX) is not present at the engine control unit, cab control unit or immobilizer control unit with the engine running.
– the engine is started 7 times with the wrong key.
– communication via the CAN Bus is not possible.
Reaction of the control software: Limited or no function of the control software.

ECU 521214.09 — Incorrect CAN Bus Message, Information from EIC Control Software
The diagnostic trouble code is generated if a data transfer problem occurs between the EIC control software and the ECU control software. CAN Bus message (enable signal from immobilizer) sent by the EIC control software cannot be received.
Control software response: Limited or no function of the vehicle.

ECU 521214.14 — VIN Information, Mismatch
The diagnostic trouble code is generated if the vehicle identification number between the ECU control software and the EIC control software does not match.
Control software response: Limited function of vehicle.

ECU 522243.05 Engine Starter Motor Solenoid Lockout Relay Driver Circuit Has High Resistance
The ECU detected high voltage on the engine starter solenoid lockout relay circuit

ECU 522243.06 Engine Starter Motor Solenoid Lockout Relay Driver Circuit Has Low Resistance
The ECU detected low resistance on the engine starter solenoid lockout relay circuit

ECU 522494.09 — CAN Bus Message Cannot Be Received, Information from Intake Air Sensor
Data transfer problem between the ECU and the intake air sensor.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 522495.09 — Communication Error of Exhaust Filter Temperature Module
Data transfer problem between the ECU and the exhaust filter temperature module.
For diagnostic procedure, see the relevant CTM for diesel engines.

ECU 522590.12 Sensor Supply #1 Voltage Error
The ECU detected a voltage error in sensor supply one

ECU 522596.09 No CAN Message Received From Source Address 1
The ECU detected did not receive a CAN message error from source address 1

ECU 522597.09 No CAN Message Received From Source Address 2
The ECU detected did not receive a CAN message error from source address 2

ECU 522599.09 Vehicle Controller CAN Communication Error #1
The ECU detected a CAN message error

ECU 522600.09 Vehicle Controller CAN Communication Error #2
The ECU detected a CAN message error

ECU 522601.09 Vehicle Controller CAN Communication Error #3
The ECU detected a CAN message error

ECU 522609.09 Vehicle Controller CAN Communication Error #4
The ECU detected a CAN message error

ECU 522618.09 Vehicle Controller CAN Communication Error #5
The ECU detected a CAN message error

ECU 522619.09 Vehicle Controller Communications Error
The ECU detected a CAN message error

ECU 522623.07 Dual Throttle Open Position Failure
Throttle sensor 1 and throttle sensor 2 are open

ECU 522624.07 Dual Throttle Closed Position Failure
Throttle sensor 1 and throttle sensor 2 are closed

ECU 522730.12 Vehicle Immobilizer System CAN Communication Error
The ECU detected a CAN communication error with the anti-theft system
Component testing:
– CAN System Diagnosis
– Programming Control Units

ECU 522744.04 ECU Power Supply Output #1 Circuit Has Low Resistance
The ECU power supply output 1 circuit is lower than the sensor low voltage specification
Component testing:
– ECU-J1 Connector
– ECU-J2 Connector
– Programming Control Units

ECU 522994.04 ECU Power Supply Output #2 Circuit Has Low Resistance
The ECU power supply output 2 circuit is lower than the sensor low voltage specification
Component testing:
– ECU-J1 Connector
– ECU-J2 Connector
– Programming Control Units

ECU 523471.06 ECU Power Supply Output #3 Circuit Has Low Resistance
The ECU power supply output 3 circuit is lower than the sensor low voltage specification.
Component testing:
– ECU-J1 Connector
– ECU-J2 Connector
– Programming Control Units

ECU 523653.01 — Supply Voltage (BAT) Too Low
Supply voltage (BAT) below 9 volts.
Reaction of the control software: Limited or no function of the control software.

ECU 523653.14 — Battery Disconnected
Fault in circuit for powering down the control unit. The Engine Control Unit sends a request to the Cab Control
Unit to keep the voltage supply alive, to be able to power down. This request is not complied with.
Reaction of the control software: Limited or no function of the tractor.

ECU 523665.01 — Supply Voltage (BAT) Too Low
Supply voltage (BAT) below 9 volts.
Reaction of the control software: Limited or no function of the control software.

ECU 523666.01 — Supply Voltage (BAT) Too Low
Supply voltage (BAT) below 9 volts.
Reaction of the control software: Limited or no function of the control software.

ECU 523752.31 — Injector Calibration in Progress

ECU 524225.31 — Crankshaft Speed Signal Invalid
The ECU detects an improper pattern or noise in the crankshaft speed signal with ignition ON (engine OFF).

John Deere fault codes / John Deere diagnostic trouble codes

ATC codes	BCU codes	BIF codes	DSM codes	DTI codes
ECU codes	EPC codes	ETC codes	HTC codes	JDL codes
PLC codes	SIC codes	SSU codes	TCU codes	TEC codes
TEI codes	TSC codes	UIC codes	UIM codes	VTI codes