BRC Control Unit – The Front Brake Control Unit is located in the SCC control unit. The BRC receives information from the CAB control unit via the CAN bus.

John Deere BRC fault codes / John Deere BRC diagnostic trouble codes

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

BRC 000158.04 (BRC 158.04)— BRC Switched Supply Voltage Low
Code Caused By: Brake Control Unit (BRC) switched supply voltage is below 9.0 V.
Control Unit Response: Indicator/Alarm Only

BRC 000168.04 (BRC 000168.04)— BRC Unswitched Supply Voltage Low
Code Caused By: Brake Control Unit (BRC) unswitched supply voltage below 9.0 V.
Control Unit Response: Indicator/Alarm Only

BRC 000628.02 (BRC 628.02)— BRC Control Unit Fault
Code Caused By: Brake Control Unit (BRC) internal configuration memory is invalid.
Control Unit Response: Function Degraded

BRC 000629.12 (BRC 629.12)— BRC Control Unit Fault
Code Caused By: Brake Control Unit (BRC) software failed to execute in allotted time.
Control Unit Response: Indicator/Alarm Only

BRC 000630.13 (BRC 630.13)— BRC Calibration Fault / Not Calibrated
Code Caused By: Brake Control Unit (BRC) system not calibrated or failed calibration save.
Control Unit Response: Function Degraded

BRC 000639.12 (BRC 639.12)— BRC CAN Message Overflow
Code Caused By: Bad intelligent device or component. BRC has not received expected messages from other components.
Control Unit Response: Function Disabled (OFF)

BRC 000639.14 (BRC 639.14)— BRC CAN Error Limit Exceeded
Code Caused By: Too many errors received by BRC Control Unit.
Control Unit Response: Function Disabled (OFF)

BRC 001079.03 (BRC 1079.03)— BRC Sensor Supply Voltage High
Code Caused By: Brake Control Unit (BRC) sensor supply voltage for Option Configuration Connector above 5.25 V.
Control Unit Response: Function Degraded

BRC 001079.04 (BRC 1079.04)— BRC Sensor Supply Voltage Low
Code Caused By: Brake Control Unit (BRC) sensor supply voltage is below 4.55 V.
Control Unit Response: Function Degraded

BRC 002000.09 (BRC 2000.09)— Engine Control Unit Message Missing
Code Caused By: Brake Control Unit (BRC) not receiving required messages from the Engine Control Unit (ECU).
Control Unit Response: Function Disabled (OFF)

BRC 002049.09 — CAB Message Missing
Code Caused By: Brake Control Unit (BRC) not receiving required messages from the Cab Control Unit (CAB).
Control Unit Response: Function Disabled (OFF)

BRC 002071.09 (BRC 2071.09)— Chassis Control Unit Message Missing
Code Caused By: Brake Control Unit (BRC) not receiving required messages from the Chassis Control Unit (CCU).
Control Unit Response: Function Disabled (OFF)

BRC 002602.18 (BRC 2602.18)— Low Clean Oil Level (COR)
Code Caused By: Message from Chassis Control Unit (CCU) is indicating Clean Oil Reservoir is low.
Control Unit Response: Function Degraded

BRC 522279.05 — Secondary Brake Control Valve Current Low
Code Caused By: Secondary brake control valve current too low.
Control Unit Response: Function Disabled (OFF)

BRC 522279.06 — Secondary Brake Control Valve Current High
Code Caused By: Secondary brake control valve current too high.
Control Unit Response: Function Disabled (OFF)

BRC 522279.13 — Secondary Brake Control Valve Not Calibrated
Code Caused By: Secondary brake control valve is not calibrated.
Control Unit Response: Function Degraded

BRC 522280.00 — Secondary Brake Pressure High
Code Caused By: Secondary brake sensor voltage higher than allowed compared to calibrated current value. Note: Code is most likely caused by leaking solenoid valve, valve stuck open or blocked return passage. Brake Control Unit is seeing higher pressure than expected compared to voltage being read.
Control Unit Response: Information/Alarm Only

BRC 522280.01 — Secondary Brake Pressure Low
Code Caused By: Secondary brake sensor voltage lower than allowed compared to calibrated current value. Note: Code is most likely caused by valve stuck closed or low hydraulic pressure. Brake Control Unit is seeing lower pressure than expected compared to voltage being read.
Control Unit Response: Information/Alarm Only

BRC 522280.03 — Secondary Brake Pressure Sensor Voltage High
Code Caused By: Secondary brake pressure sensor voltage is above 4.50 V.
Control Unit Response: Function Degraded

BRC 522280.04 — Secondary Brake Pressure Sensor Voltage Low
Code Caused By: Secondary brake pressure sensor voltage is below 0.10 V.
Control Unit Response: Function Degraded

BRC 522280.13 — Secondary Brake Pressure Not Calibrated
Code Caused By: Secondary brake pressure sensor not calibrated.
Control Unit Response: Function Degraded

BRC 522281.05 — Rear Brake Cooling Control Valve Current Low
Code Caused By: Rear brake cooling control valve current too low.
Control Unit Response: Function Disabled (OFF)

BRC 522281.06 — Rear Brake Cooling Control Valve Current High
Code Caused By: Rear brake cooling control valve current too high.
Control Unit Response: Function Disabled (OFF)

BRC 523652.02 — Wire Connector Fault / Incompatible Harness Location
Code Caused By: Control unit is connected to wrong harness.
Control Unit Response: Function Disabled (OFF)

BRC 523787.04 — Brake Cooling Solenoid Supply Voltage Low
Code Caused By: Brake Control Unit (BRC) unswitched supply voltage below 9.0 V.
Control Unit Response: Function Degraded

BRC 523837.00 — Rear Brake Pressure High / Right Brake Pedal Conflict
Code Caused By: Rear brake pressure high when right rear brake pedal command is off.
Control Unit Response: Function Degraded

BRC 523837.03 — Rear Brake Pressure Sensor Circuit Voltage High
Code Caused By: Rear Brake Pressure Sensor voltage above 4.50 V with right brake pedal released.
Control Unit Response: Function Disabled (OFF)

BRC 523837.04 — Rear Brake Pressure Sensor Circuit Voltage Low
Code Caused By: Rear Brake Pressure Sensor voltage below 0.10 V.
Control Unit Response: Function Disabled (OFF)

BRC 523837.13 — Rear Brake Pressure Sensor Not Calibrated
Code Caused By: Rear brake pressure sensor not calibrated.
Control Unit Response: Function Degraded

BRC 523839.19 — Secondary Hand Brake Fault Message Received
Code Caused By: Secondary Brake Switch data received from CAB Control Unit with a failure indication. Related code is CAB 523839.02—Handbrake Switch Conflict. CAB 523839.02 code should be diagnosed first.
Control Unit Response: Function Degraded

BRC 523840.00 — Front Brake Pressure High (50K Only)
Code Caused By: Front Brake pressure too high when front brake command is off.
Control Unit Response: Indicator/Alarm Only

BRC 523840.01 — Front Brake Pressure Low (50K Only)
Code Caused By: Front Brake pressure too low.
Control Unit Response: Indicator/Alarm Only

BRC 523840.03 — Front Brake Pressure Sensor Circuit Voltage High (50K Only)
Code Caused By: Front Brake Pressure Sensor voltage above 4.50 V.
Control Unit Response: Function Degraded

BRC 523840.04 — Front Brake Pressure Sensor Circuit Voltage Low (50K Only)
Code Caused By: Front Brake Pressure Sensor voltage below 0.20 V.
Control Unit Response: Function Degraded

BRC 523840.13 — BRC Calibration Fault / Front Brake Pressure Sensor (50K Only)
Code Caused By: Front Brake pressure sensor not calibrated.
Control Unit Response: Function Degraded

BRC 523841.19 — Secondary Hand Brake Position Fault Message Received
Code Caused By: Secondary Brake Position data received from CAB Control Unit with a failure indication.
Control Unit Response: Function Degraded

BRC 523841.31 — Secondary Hand Brake Position Message Missing
Code Caused By: Secondary Hand Brake message is not being sent through CAN Bus.
Control Unit Response: Function Degraded

BRC 523844.05 — Front Brake Solenoid Circuit Current Low (50K Only)
Code Caused By: Front brake solenoid current too low.
Control Unit Response: Function Disabled (OFF)

BRC 523844.06 — Front Brake Solenoid Circuit Current High (50 km/h)
Code Caused By: Front Brake Solenoid current too high.
Control Unit Response: Function Disabled (OFF)

BRC 523844.13 — BRC Calibration Fault/Front Brake Valve (50 km/h)
Code Caused By: Front brake valve has not been calibrated or has failed calibration.
Control Unit Response: Function Degraded

BRC 523910.02 — BRC Control Unit Fault
Code Caused By: Brake Control Unit (BRC) internal configuration memory is invalid.
Control Unit Response: Function Degraded

BRC 524016.04 — Brake Solenoid Supply Voltage Low
Code Caused By: Brake Control Unit (BRC) unswitched supply voltage below 9.0 V.
Control Unit Response: Function Degraded

BRC 524157.19 — Right Brake Pedal Switch Fault Message Received
Code Caused By: Right brake pedal message contains switch fault status information.
Control Unit Response: Function Disabled (OFF)

BRC 524162.19 — Left Brake Pedal Switch Fault Message Received
Code Caused By: Left brake pedal message contains switch fault status information.
Control Unit Response: Function Disabled (OFF)