Transmission error codes on Case tractors

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

Transmission Fault Codes / Transmission diagnostic trouble codes

2001 – Shuttle too fast error (“N” displayed)

2005 – Creeper engage fault

2006 – No signal from the radar

2009 – Seat switch input – voltage too low

2010 – Seat switch input – voltage too high

2011 – Clutch pedal potentiometer – voltage too low

2012 – Clutch pedal potentiometer – voltage too high

2015 – High and low range switches both closed

2016 – Creeper solenoid short to ground or high voltage

2021 – Transmission harness disconnected

2024 – All clutches not calibrated

2025 – Synchronizers not calibrated

2026 Engine speed – too high

2027 Engine speed – no signal

2035 Dump solenoid – short to 12V

2036 Dump solenoid – short to ground or open circuit

2037 Clutch pedal switch – open circuit

2038 Clutch 4 solenoid – short to ground or high voltage / High range PWM valve – short to ground or high voltage

2039 Clutch 4 solenoid – open circuit / High range PWM valve – open circuit

2040 Clutch 3 solenoid – short to ground or high voltage / Low range PWM valve – short to ground or high voltage

2041 Clutch 3 solenoid – open circuit / Low range PWM valve – open circuit

2042 Clutch 2 solenoid – short to ground or high voltage

2043 Clutch 2 solenoid – open circuit

2044 Clutch 1 solenoid – short to ground or high voltage

2045 Clutch 1 solenoid – open circuit

2046 PTO fuse blown

2047 Clutch pedal switch set too high

2048 Clutch pedal switch set too low

2049 Wheel speed (transmission output speed) sensor – short to ground or open circuit

2050 Wheel speed (transmission output speed) sensor – short to 12V

2051 Oil temperature sensor – open circuit

2052 Oil temperature sensor – short circuit

2053 5V references – voltage too high

2054 5V references – voltage too low

2055 Wheel speed (transmission output speed) sensor – no signal

2056 Low range switch open

2057 High range switch open

2058 Seat switch closed

2059 Shuttle lever switch disagreement (“N” displayed)

2061 Forward / reverse synchronizer potentiometer – signal too high

2062 Forward / reverse synchronizer potentiometer – signal too low

2063 Forward synchronizer did not engage

2064 Reverse synchronizer did not engage

2065 Forward synchronizer solenoid – open circuit

2066 Reverse synchronizer solenoid – open circuit

2067 Forward synchronizer solenoid – short too ground or high voltage

2068 Reverse synchronizer solenoid – short too ground or high voltage

2070 Shuttle lever forward switch – voltage too high

2071 Shuttle lever forward switch – voltage too low

2072 Shuttle lever reverse switch – voltage too high

2073 Shuttle lever reverse switch – voltage too low

2073 Shuttle lever reverse switch – voltage too low

2075 Flywheel speed sensor signal error

2076 Flywheel speed sensor – open circuit

2077 Flywheel speed sensor – short circuit

2079 Flywheel speed sensor – no signal

2081 4 / 5 range synchronizer potentiometer – signal high

2082 4 / 5 range synchronizer potentiometer – signal low

2083 1-4 range synchronizer engaged error

2084 5-8 range synchronizer engaged error

2085 1-4 range synchronizer solenoid – open circuit

2086 5-8 range synchronizer solenoid – open circuit

2087 1-4 range synchronizer solenoid – short to ground or high voltage

2088 5-8 range synchronizer solenoid – short to ground or high voltage

2091 Clutch 3 not calibrated

2092 Clutch 4 not calibrated

2093 High clutch not calibrated

2094 Low clutch not calibrated

2095 Clutch 1 not calibrated

2096 Clutch 2 not calibrated

2097 Clutch 5 not calibrated

2098 Clutch 5 solenoid – short circuit

2099 Clutch 5 solenoid – open circuit

2100 Clutch 5 dump solenoid – short circuit

2101 Clutch 5 dump solenoid – open circuit

2110 Shuttle lever neutral switch – voltage too low

2111 Shuttle lever neutral switch – voltage too high

2124 Flywheel speed sensor not calibrated

2300 19th gear solenoid open circuit or short to ground

2302 19th gear clutch dump solenoid open circuit or short to ground

2303 Damper calibration – low error

2304 Damper calibration – high error

2305 19th gear clutch solenoid over voltage

2306 19th gear clutch dump solenoid over voltage

2308 Reverse not allowed

2314 Forward pressure switch – open circuit or short to ground

2315 Reverse pressure switch – open circuit or short to ground

2316 Transmission oil pressure sensor – not configured

2317 Transmission oil pressure sensor – configuration error

2323 Transmission mid speed sensor – open circuit

2324 Transmission mid speed sensor – short to ground

2325 Mid speed sensor and output speed sensor swapped

2326 Engine torque/RPM sensor swapped with either mid or output speed sensors

2328 Transmission mid speed sensor – no signal

2330 Transmission output RPM too high for the selected gear

2331 Clutch slipping fault (“CP” displayed)

2334 Pressure indicated on the forward clutch pressure switches when the clutch solenoids are off

2335 Pressure indicated on the reverse clutch pressure switch when the clutch solenoids are off

2336 Creeper fails to engage

2337 Creeper fails to disengage

2338 Creeper potentiometer – short circuit to 8V or 12V

2339 Creeper potentiometer – open circuit or short circuit to ground

2342 Clutch A solenoid – open circuit or short circuit to ground

2343 Clutch B solenoid – open circuit or short circuit to ground

2344 Clutch C solenoid – open circuit or short circuit to ground

2345 Clutch D solenoid – open circuit or short circuit to ground

2346 Clutch E solenoid – open circuit or short circuit to ground

2347 Low range clutch solenoid – open circuit or short circuit to ground

2348 Medium range clutch solenoid – open circuit or short circuit to ground

2349 High range clutch solenoid – open circuit or short circuit to ground

2350 Reverse clutch solenoid – open circuit or short circuit to ground

2351 Creeper solenoid – open circuit or short circuit to ground

2352 Clutch A solenoid – over voltage

2353 Clutch B solenoid – over voltage

2354 Clutch C solenoid – over voltage

2355 Clutch D solenoid – over voltage

2356 Clutch E solenoid – over voltage

2357 Low range clutch solenoid – over voltage

2358 Medium range clutch solenoid – over voltage

2359 High range clutch solenoid – over voltage

2360 Reverse clutch solenoid – over voltage

2361 Creeper solenoid – over voltage

2362 Clutch A not calibrated

2363 Clutch B not calibrated

2363 Clutch B not calibrated

2364 Clutch C not calibrated

2365 Clutch D not calibrated

2366 Clutch E not calibrated

2367 Low range clutch not calibrated

2368 Medium range clutch not calibrated

2369 High range clutch not calibrated

2370 Reverse clutch not calibrated

2371 Creeper position out of range

2372 Creeper not calibrated

2373 Clutch 19 not calibrated

2374 Creeper calibration error

2375 Creeper – cold oil

2376 Fault on 19th gear

2377 Fault on Dump

2380 EPL position diagnostic – unable to reach desired position (applicable to only CCM LWB CVT)

2381 EPL on line diagnostic – not on CAN (applicable to only CCM LWB CVT)

2382 EPL bus check diagnostic – bus integrity error (applicable to only CCM LWB CVT)

2383 Shuttle park position switch – voltage too low (applicable to only CCM HD CVT)

2384 Shuttle park position switch – voltage too low (applicable to only CCM HD CVT)

2385 Inconsistent ratio of transmission output speed and engine speed

2386 Shuttle lever neutral switch – voltage too high

2387 Shuttle lever neutral switch – voltage too low

2390 Hydraulic Trans Lube – Oil low pressure circuit, pressure too low (applicable to only CCM HD CVT)

2391 Hydraulic Trans Lube – Oil low pressure circuit, pressure too high (applicable to only CCM HD CVT)

2400 Low / high range synchronizer not calibrated or bad calibration

2401 Medium / reverse range synchronizer not calibrated or bad calibration

2403 Range shift synchronizer did not engage

2405 Range shift synchronizer did not disengage

2407 Range shift synchroniser did not engage during a shuttle shift

2410 Synchroniser did not disengage during a shuttle shift

2412 Synchroniser did not engage previous range after error

2413 Synchroniser disengaged without driver initiation

2414 Disable range selected by operator

2415 Medium / reverse range synchronizer potentiometer – voltage too high

2403 Range shift synchronizer did not engage

2416 Medium / reverse range synchronizer potentiometer voltage too low

2417 Low / high range synchronizer potentiometer – voltage too high

2418 Low / high range synchronizer potentiometer – voltage too low

2419 Medium / reverse range synchronizer potentiometer voltage is out of calibrated range

2420 Low / high range synchronizer potentiometer – voltage is out of calibrated range

2425 Attempted to select a disabled range

2500 Input over speed error

2501 Oil pressure sensor – open circuit or short circuit to ground

2502 Oil pressure sensor – short circuit to +5V

2503 Clutch A solenoid – in use and open circuit or short circuit to ground

2504 Clutch B solenoid – in use and open circuit or short circuit to ground

2505 Clutch A pressure not plausible (mismatch between clutch A pressure and solenoid current)

2506 Clutch B pressure not plausible (mismatch between clutch B pressure and solenoid current)

2507 F1/F3 synchronizer potentiometer – signal too high

2508 F1/F3 synchronizer potentiometer – signal too low

2509 Synchronizer not moving towards F1

2510 Synchronizer not moving towards F3

2511 F1 solenoid open circuit or short circuit to ground

2512 F3 solenoid open circuit or short circuit to ground

2513 F1 solenoid circuit fault

2514 F3 solenoid circuit fault

2515 F1/F3 synchronizer – neutral did not engage

2517 F2/R1 synchronizer potentiometer – signal too high

2518 F2/R1 synchronizer potentiometer – signal too low

2519 Synchronizer not moving towards F2

2520 Synchronizer not moving towards R1

2521 F2 solenoid open circuit or short circuit to ground

2522 R1 solenoid open circuit or short circuit to ground

2523 F2 solenoid circuit fault

2524 R1 solenoid circuit fault

2525 F2/R1 synchronizer – neutral did not engage

2527 F4/R2 synchronizer potentiometer – signal too high

2528 F4/R2 synchronizer potentiometer – signal too low

2529 Synchronizer not moving towards F4

2530 Synchronizer not moving towards R2

2531 F4 solenoid open circuit or short circuit to ground

2532 R2 solenoid open circuit or short circuit to ground

2533 F4 solenoid circuit fault

2534 R2 solenoid circuit fault

2535 F4/R2 synchronizer – neutral did not engage

2538 Ring speed sensor – short to ground or open circuit

2539 Ring speed sensor – short to 12V

2540 A clutch pressure transducer – open circuit or short to ground

2541 B clutch pressure transducer – open circuit or short to ground

2542 A clutch pressure transducer – short to 5V

2543 B clutch pressure transducer – short to 5V

2544 Ring sensor critical air gap

2545 Wheel speed (transmission output speed) sensor – critical air gap

2547 No signal from ring sensor

2548 Brake pressure transducer – open circuit or short to ground / Right brake pressure transducer – open circuit / short to ground (when ABS is fitted)

2549 Brake pressure transducer – short to 12V / Right brake pressure transducer – short to 12V (when ABS is fitted)

2550 Stuck dump solenoid or clutch A solenoid (mismatch between clutch A pressure command and pressure sensor reading when clutch A is commanded)

2551 Stuck dump solenoid or clutch B solenoid (mismatch between clutch B pressure command and pressure sensor reading when clutch B is commanded)

2552 Transmission oil pressure too high

2553 Transmission oil pressure too low

2554 Transmission oil pressure above maximum boost pressure

2555 Transmission oil pressure below warning pressure

2557 Hydro 1 solenoid – open circuit or short circuit to ground

2558 Hydro 1 solenoid – short circuit to 12V

2559 ORPM and Ring fault

2560 Uncommanded movement of synchronizer F1/F3 to neutral

2561 Uncommanded movement of synchronizer F2/R1 to neutral

2562 Uncommanded movement of synchronizer F4/R2 to neutral

2563 HST inlet (hydro Gport) – pressure too low

2564 HST inlet (hydro Gport) – low pressure warning

2565 HST inlet (hydro Gport) – high pressure warning

2566 HST inlet (hydro Gport) – pressure too high

2567 Gear pump (hydro filter) – pressure too low

2568 Gear pump (hydro filter) – low pressure warning

2569 Gear pump (hydro filter) – high pressure warning

2570 Gear pump (hydro filter) – pressure on filter too high

2571 Hydro Gport pressure sensor – open circuit or short circuit to ground

2572 Hydro Gport pressure sensor – short circuit to 5V

2573 Hydro filter pressure sensor – open circuit or short circuit to ground

2574 Hydro filter pressure sensor – short circuit to 5V

2575 F2/R1 synchronizer transducer – transducer failure

2576 Wheel speed (transmission output speed) sensor #2 – short to ground or open circuit

2577 Wheel speed (transmission output speed) sensor #2 – short to 12V

2578 Wheel speed (transmission output speed) sensor #2 – no signal

2579 Wheel speed (transmission output speed) sensor #2 – critical air gap

2580 Left brake pressure transducer – open circuit / short to ground (when ABS is fitted)

2581 Left brake pressure transducer – short to 12V (when ABS is fitted)

2582 Left brake pedal switch fault – electrical signals are inconsistent (when ABS is fitted)

2583 Right brake pedal switch fault – electrical signals are inconsistent (when ABS is fitted)

2601 Pressure motor blower fault (MRM only)