Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 98 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 12632 | ABS Control Module or Frame ECU / Vehicle Control Module | Rear left wheel speed sensor - damaged sensor ring | Full repair manual for code 12632, ABS Control Module or Frame ECU / Vehicle Control Module |
| 12633 | ABS Control Module / TECU | Rear right wheel speed sensor - damaged sensor ring | Full repair manual for code 12633, ABS Control Module / TECU |
| 12635 | TECU / ABS | Front right wheel speed sensor - damaged sensor ring | Full repair manual for code 12635, TECU / ABS |
| 12636 | Transmission Controller (TRANS / DCU) or Instrumentation Controller | Rear left wheel speed sensor - wheel diameter incorrect | Full repair manual for code 12636, Transmission Controller (TRANS / DCU) or Instrumentation Controller |
| 12637 | ABS ECU or Central Controller | Rear right wheel speed sensor - wheel diameter incorrect | Full repair manual for code 12637, ABS ECU or Central Controller |
| 12638 | Vehicle Control Unit (VCU) or Transmission/ABS ECU | Front left wheel speed sensor - wheel diameter incorrect | Full repair manual for code 12638, Vehicle Control Unit (VCU) or Transmission/ABS ECU |
| 12639 | ABS Module / Transmission/Vehicle Control Module (TECU) | Front right wheel speed sensor - wheel diameter incorrect | Full repair manual for code 12639, ABS Module / Transmission/Vehicle Control Module (TECU) |
| 12640 | — | Pneumatic output - delivery port - rear right - backup solenoid electrical error | Full repair manual for code 12640 |
| 12643 | Trailer Electronic Braking System (TEBS) Module or ABS / Central Controller | Pneumatic output, backup solenoid electrical error | Full repair manual for code 12643, Trailer Electronic Braking System (TEBS) Module or ABS / Central Controller |
| 12645 | ABS Control Module or Trailer Brake Control Module | Pneumatic output - delivery port exhaust solenoid electrical error | Full repair manual for code 12645, ABS Control Module or Trailer Brake Control Module |
| 12646 | ABS Control Module / Pneumatic Trailer Brake Controller | P2 Backup / Hold solenoid electrical error | Full repair manual for code 12646, ABS Control Module / Pneumatic Trailer Brake Controller |
| 12647 | ABS Module / Trailer Brake Control Module | P2 Exhaust Solenoid electrical error | Full repair manual for code 12647, ABS Module / Trailer Brake Control Module |
| 12649 | ABS Control Module / Pneumatic Trailer Brake Valve Controller | AUX3 internal charge-pump error (EM supply) | Full repair manual for code 12649, ABS Control Module / Pneumatic Trailer Brake Valve Controller |
| 12650 | Planter UCM (Universal Control Module) | Pneumatic input supply port pressure sensor electrical error | Full repair manual for code 12650, Planter UCM (Universal Control Module) |
| 12652 | Vehicle Control Module (VCM) or Trailer Brake Control Module / ABS Module | Pneumatic input - control port pressure sensor electrical fault | Full repair manual for code 12652, Vehicle Control Module (VCM) or Trailer Brake Control Module / ABS Module |
| 12657 | — | Pneumatic output - delivery port - rear left - pressure sensor electrical error | Full repair manual for code 12657 |
| 12658 | Vehicle Control Module (VCM / TECU) or Trailer Brake Control Module | Pneumatic output - delivery port - rear left - pressure dynamic error | Full repair manual for code 12658, Vehicle Control Module (VCM / TECU) or Trailer Brake Control Module |
| 12659 | Safety Controller | Pressure sensor cross check - ADC values implausible | Full repair manual for code 12659, Safety Controller |
| 12660 | Any control module | Internal controller communication - checksum error | Full repair manual for code 12660, Any control module |
| 12663 | — | Internal controller fault - memory (ROM) test error | Full repair manual for code 12663 |
| 12664 | Engine Control Unit (ECU) | Internal controller fault - memory (RAM) test error | Full repair manual for code 12664, Engine Control Unit (ECU) |
| 12665 | Pneumatic Trailer Brake Valve / ABS Control Module | Internal controller fault - ALU error | Full repair manual for code 12665, Pneumatic Trailer Brake Valve / ABS Control Module |
| 12666 | EBM (Electronic Brake Module) | Internal controller fault - negative filling of the memory block | Full repair manual for code 12666, EBM (Electronic Brake Module) |
| 12667 | Instrument Cluster Controller (ICC) | Internal controller fault - stack overflow | Full repair manual for code 12667, Instrument Cluster Controller (ICC) |
| 12668 | — | Internal controller fault - internal controller communication - checksum error | Full repair manual for code 12668 |
| 12669 | ABS (Anti-lock Braking System) / Trailer Brake Valve Controller | Internal controller fault - internal controller communication - timeout occurred | Full repair manual for code 12669, ABS (Anti-lock Braking System) / Trailer Brake Valve Controller |
| 12670 | Safety Controller | time between 2 ICC data telegrams too long or too short | Full repair manual for code 12670, Safety Controller |
| 12671 | ABS Controller / Trailer Brake Controller | Internal controller fault - number of ICC communications in 1 second out of range | Full repair manual for code 12671, ABS Controller / Trailer Brake Controller |
| 12672 | ABS Controller (Anti-lock Braking System) or Pneumatic Trailer Brake Control Module | Valve plausibility monitoring - illegal valve activation detected | Full repair manual for code 12672, ABS Controller (Anti-lock Braking System) or Pneumatic Trailer Brake Control Module |
| 12673 | Safety Controller / ABS Control Module | Valve plausibility monitoring - dynamic fault | Full repair manual for code 12673, Safety Controller / ABS Control Module |
| 12674 | ABS Controller (Anti-lock Braking System ECU) | Valve plausibility monitoring - ABS activation; detected in Backup Controller | Full repair manual for code 12674, ABS Controller (Anti-lock Braking System ECU) |
| 12675 | Main Controller (MCC1 / Vehicle ECU / MIU) | Valve plausibility monitoring - ABS activation; detected in Main Controller | Full repair manual for code 12675, Main Controller (MCC1 / Vehicle ECU / MIU) |
| 12676 | — | High voltage - greater than 32 volts | Full repair manual for code 12676 |
| 12677 | — | Low voltage - disable system functions | Full repair manual for code 12677 |
| 12678 | Trailer Brake Control Module (TBCM) or Anti-lock Braking System (ABS) Module | Low voltage whilst moving - disable system functions | Full repair manual for code 12678, Trailer Brake Control Module (TBCM) or Anti-lock Braking System (ABS) Module |
| 12679 | Safety Controller / ABS module / DME | Voltage supply line resistance high | Full repair manual for code 12679, Safety Controller / ABS module / DME |
| 12682 | Pneumatic Brake / Trailer Brake Control Module | Valve supply missing (pin 1 in power supply connector) | Full repair manual for code 12682, Pneumatic Brake / Trailer Brake Control Module |
| 12684 | Vehicle Control Module (VCM) or Pneumatic Trailer Brake Control Module | System pressure below 2.5 bar for 0.5 seconds while moving | Full repair manual for code 12684, Vehicle Control Module (VCM) or Pneumatic Trailer Brake Control Module |
| 12685 | EBM (Electronic Brake Module) | Service Brake application too long | Full repair manual for code 12685, EBM (Electronic Brake Module) |
| 12687 | Trailer Brake Control Module (TEBS) or Suspension/Cab Control ECU | Pneumatic output - delivery port - rear right - leakage (e.g. while trying to hold pressure) | Full repair manual for code 12687, Trailer Brake Control Module (TEBS) or Suspension/Cab Control ECU |
| 12689 | Trailer Brake Control Module (TBCM) or ABS / Pneumatic Brake Control Module | Pneumatic output - delivery port - rear right - backup valve (pneumatic input - control port cannot execute the command to release regulated air) | Full repair manual for code 12689, Trailer Brake Control Module (TBCM) or ABS / Pneumatic Brake Control Module |
| 12690 | Chassis Control Module or Pneumatic/CTIS Controller | Pneumatic output - delivery port - rear left - leakage (e.g., while trying to hold pressure) | Full repair manual for code 12690, Chassis Control Module or Pneumatic/CTIS Controller |
| 12691 | ABS (Anti-lock Braking System) Module or Pneumatic Trailer Brake Control Module | Pneumatic output - delivery port - rear left - uncontrollable (if load/exhaust valves are activated for more than 4Hz, DTC is set) | Full repair manual for code 12691, ABS (Anti-lock Braking System) Module or Pneumatic Trailer Brake Control Module |
| 12692 | ABS (Anti-lock Braking System) Controller or Trailer Brake Control Module | Pneumatic output - delivery port - rear left - backup valve (pneumatic input - control port cannot exhaust modulated air command) | Full repair manual for code 12692, ABS (Anti-lock Braking System) Controller or Trailer Brake Control Module |
| 12693 | ABS (Anti-lock Braking System) / Electronic Braking Module (EBM) | Pneumatic input supply port implausible during valves activity (complementary to pneumatic input supply port dynamic check) | Full repair manual for code 12693, ABS (Anti-lock Braking System) / Electronic Braking Module (EBM) |
| 12694 | EBM (Electronic Braking Module) / ABS Control Module | EEPROM configuration is corrupted | Full repair manual for code 12694, EBM (Electronic Braking Module) / ABS Control Module |
| 12695 | ABS Module / Electronic Braking Module (EBM) | ABS activity too long (add.info = 0) or too frequent (add.info = 1) | Full repair manual for code 12695, ABS Module / Electronic Braking Module (EBM) |
| 12696 | ADIC | Default config in FLASH corrupted (checksum error) | Full repair manual for code 12696, ADIC |
| 12697 | Electronic Brake Module (EBM) | ECU has not been configured | Full repair manual for code 12697, Electronic Brake Module (EBM) |
| 12698 | EBM (Electronic Braking Module) / ABS Controller | EOL CNH test not done | Full repair manual for code 12698, EBM (Electronic Braking Module) / ABS Controller |
