Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 156 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 520330-09 - DEC | DEC (Drivetrain Electronic Controller) | CAN VB2 abnormal update rate | Full repair manual for code 520330-09 - DEC, DEC (Drivetrain Electronic Controller) |
| 520330-14 - BCM | BCM | Communication network failure on CAN Bus B (short circuit) | Full repair manual for code 520330-14 - BCM, BCM |
| 520331-03 - BCM | BCM (Body Control Module) | CAN Bus C - short circuit to B+ (Battery Positive) | Full repair manual for code 520331-03 - BCM, BCM (Body Control Module) |
| 520331-06 - BCM | BCM | CAN Bus C - short circuit to ground | Full repair manual for code 520331-06 - BCM, BCM |
| 520331-14 - BCM | BCM | CAN Bus C - curto entre as linhas CAN_L e CAN_H (CAN Bus C - short circuit between the CAN_L and CAN_H lines) | Full repair manual for code 520331-14 - BCM, BCM |
| 520368-02 - PCM | PCM | CAN-1 data erratic, intermittent or incorrect | Full repair manual for code 520368-02 - PCM, PCM |
| 520433-03 - BCM | BCM | Rotating beacon status indicator - short circuit to B+ | Full repair manual for code 520433-03 - BCM, BCM |
| 520433-05 - BCM | BCM | Rotating beacon status indicator - open circuit | Full repair manual for code 520433-05 - BCM, BCM |
| 520433-06 - BCM | BCM | Rotating beacon status indicator - short circuit to ground | Full repair manual for code 520433-06 - BCM, BCM |
| 520434-03 - BCM | BCM | Alternator feedback - out of range - high | Full repair manual for code 520434-03 - BCM, BCM |
| 520434-04 - BCM | BCM | Alternator feedback - out of range - low | Full repair manual for code 520434-04 - BCM, BCM |
| 520437-14 - BCM | BCM | Field light memory 1 recall switch - invalid input voltage | Full repair manual for code 520437-14 - BCM, BCM |
| 520438-03 - BCM | BCM | Field light memory 1 recall indicator - short circuit to B+ | Full repair manual for code 520438-03 - BCM, BCM |
| 520438-05 - BCM | BCM | Field light memory 1 recall indicator - open circuit | Full repair manual for code 520438-05 - BCM, BCM |
| 520438-06 - BCM | BCM | Field light memory 1 recall indicator fault | Full repair manual for code 520438-06 - BCM, BCM |
| 520439-14 - BCM | BCM | Field light memory 2 recall switch - invalid input voltage | Full repair manual for code 520439-14 - BCM, BCM |
| 520440-03 - BCM | BCM | Field light memory 2 recall indicator - short circuit to B+ | Full repair manual for code 520440-03 - BCM, BCM |
| 520440-05 - BCM | BCM | Field light memory 2 recall indicator - Current below normal or open circuit | Full repair manual for code 520440-05 - BCM, BCM |
| 520440-06 - BCM | BCM (Body Control Module) | Field light memory 2 recall indicator - short circuit to ground | Full repair manual for code 520440-06 - BCM, BCM (Body Control Module) |
| 520441-14 - BCM | BCM | Mirror heat switch - invalid input voltage | Full repair manual for code 520441-14 - BCM, BCM |
| 520442-00 - BCM | BCM | Roof mounted headlamp high beam left - too many loads or faulty load | Full repair manual for code 520442-00 - BCM, BCM |
| 520442-03 - BCM | BCM | Roof mounted headlamp high beam left - short circuit to B+ | Full repair manual for code 520442-03 - BCM, BCM |
| 520442-05 - BCM | BCM | Roof mounted headlamp high beam left - open circuit | Full repair manual for code 520442-05 - BCM, BCM |
| 520442-06 - BCM | BCM | Roof mounted headlamp high beam left - short circuit to ground | Full repair manual for code 520442-06 - BCM, BCM |
| 520443-00 - BCM | BCM | Roof mounted headlamp high beam right - too many loads or faulty load. | Full repair manual for code 520443-00 - BCM, BCM |
| 520443-03 - BCM | BCM | Short circuit to B+ on the right roof-mounted high beam headlamp circuit | Full repair manual for code 520443-03 - BCM, BCM |
| 520443-05 - BCM | BCM | Roof mounted headlamp high beam right - open circuit | Full repair manual for code 520443-05 - BCM, BCM |
| 520443-06 - BCM | Body Control Module (BCM) | Right roof-mounted high beam headlamp short circuit to ground | Full repair manual for code 520443-06 - BCM, Body Control Module (BCM) |
| 520444.02 - ACML | ACML | RAM check, unexpected value | Full repair manual for code 520444.02 - ACML, ACML |
| 520444.13 - ACML | ACML (Armrest Control Module) | ACML RAM check, out of calibration | Full repair manual for code 520444.13 - ACML, ACML (Armrest Control Module) |
| 520445-00 - BCM | Engine ECU, Transmission TCU, IBC Controller | Throttle Valve Actuator Error / DANA Transmission Configuration Error / DEF Pump Motor Communication / Intelligent Boom Control | Full repair manual for code 520445-00 - BCM, Engine ECU, Transmission TCU, IBC Controller |
| 520445-03 - BCM | BCM | Roof mounted headlamp low beam left - short circuit to B+ | Full repair manual for code 520445-03 - BCM, BCM |
| 520445-05 - BCM | BCM | Left Roof-Mounted Low Beam Headlamp Open Circuit | Full repair manual for code 520445-05 - BCM, BCM |
| 520445-06 - BCM | BCM (Body Control Module) or LCM (Lighting Control Module) | Roof mounted headlamp low beam left - short circuit to ground | Full repair manual for code 520445-06 - BCM, BCM (Body Control Module) or LCM (Lighting Control Module) |
| 520446-00 - BCM | BCM | Roof mounted headlamp low beam right - too many loads or faulty load | Full repair manual for code 520446-00 - BCM, BCM |
| 520446-03 - BCM | BCM | Roof mounted headlamp low beam right - short circuit to B+ | Full repair manual for code 520446-03 - BCM, BCM |
| 520446-05 - BCM | BCM | Roof mounted headlamp low beam right - open circuit | Full repair manual for code 520446-05 - BCM, BCM |
| 520446-06 - BCM | BCM | Roof mounted headlamp low beam right - short circuit to ground. | Full repair manual for code 520446-06 - BCM, BCM |
| 520525-03 - ITBV | ITBV (Intelligent Trailer Brake Valve) | Inlet valve voltage high | Full repair manual for code 520525-03 - ITBV, ITBV (Intelligent Trailer Brake Valve) |
| 520525-04 - ITBV | ITBV (Intelligent Trailer Brake Valve) Controller | Solenoid Valve / Diff-Valve (Position A) or Inlet Valve (IV) — Voltage below normal or shorted low | Full repair manual for code 520525-04 - ITBV, ITBV (Intelligent Trailer Brake Valve) Controller |
| 520525-05 - ITBV | ITBV (Intelligent Trailer Brake Valve) Controller | Inlet valve current low | Full repair manual for code 520525-05 - ITBV, ITBV (Intelligent Trailer Brake Valve) Controller |
| 520525-06 - ITBV | ITBV | Inlet valve current high | Full repair manual for code 520525-06 - ITBV, ITBV |
| 520526-03 - ITBV | ITBV (Intelligent Trailer Brake Valve) ECU | ITBV: Outlet valve voltage high | Full repair manual for code 520526-03 - ITBV, ITBV (Intelligent Trailer Brake Valve) ECU |
| 520526-04 - ITBV | ITBV (Intelligent Trailer Brake Valve) | Outlet valve voltage low | Full repair manual for code 520526-04 - ITBV, ITBV (Intelligent Trailer Brake Valve) |
| 520526-05 - ITBV | Trailer Brake Control Module | ITBV Outlet Valve - Current Below Normal or Open Circuit | Full repair manual for code 520526-05 - ITBV, Trailer Brake Control Module |
| 520526-06 - ITBV | ITBV (Intelligent Trailer Brake Valve) Controller | Outlet valve current high | Full repair manual for code 520526-06 - ITBV, ITBV (Intelligent Trailer Brake Valve) Controller |
| 520527-03 - ITBV | ITBV | Solenoid Valve/Diff-Valve (Trailer ABV) - voltage above normal or shorted high | Full repair manual for code 520527-03 - ITBV, ITBV |
| 520527-04 - ITBV | ITBV | Back up valve - Voltage Below Normal, or Shorted to Low Source | Full repair manual for code 520527-04 - ITBV, ITBV |
| 520527-05 - ITBV | Trailer Brake Control module (iTBV) | Solenoid Valve/Diff-Valve (Trailer ABV) - current below normal or open circuit. | Full repair manual for code 520527-05 - ITBV, Trailer Brake Control module (iTBV) |
| 520527-06 - ITBV | Trailer Brake Control (iTBV) Module | ITBV: Back up valve current high | Full repair manual for code 520527-06 - ITBV, Trailer Brake Control (iTBV) Module |
