Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 14 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 595 | ENGINE (ENG) | Turbo overspeed protection fault | Full repair manual for code 595, ENGINE (ENG) |
| 596 | Engine Control Module (ENG / ECM) | Battery voltage is too high | Full repair manual for code 596, Engine Control Module (ENG / ECM) |
| 597 | Engine Controller (ECM / ENG) | Battery voltage is too low | Full repair manual for code 597, Engine Controller (ECM / ENG) |
| 597-02 - UCM | UCM | Top of brake switch right circuit fault | Full repair manual for code 597-02 - UCM, UCM |
| 597-03 - UCM | UCM | Top of brake switch right voltage high | Full repair manual for code 597-03 - UCM, UCM |
| 597-04 - UCM | UCM | Top of brake switch right voltage low | Full repair manual for code 597-04 - UCM, UCM |
| 598 | Engine Controller (ENG / ECM) | Battery voltage is very low | Full repair manual for code 598, Engine Controller (ENG / ECM) |
| 599 | Engine Controller / ECM | Engine is being shutdown based on OEM input | Full repair manual for code 599, Engine Controller / ECM |
| 603-02 - UCM | UCM | Low voltage in the right circuit of the top of the brake switch | Full repair manual for code 603-02 - UCM, UCM |
| 603-03 - UCM | UCM | Top of brake switch left voltage high | Full repair manual for code 603-03 - UCM, UCM |
| 603-04 - UCM | UCM | Abnormal voltage reading on the Top of brake switch left circuit | Full repair manual for code 603-04 - UCM, UCM |
| 609-19 - VCM | VCM | Received Network Data In Error / Not Detected on J1939 | Full repair manual for code 609-19 - VCM, VCM |
| 611 | ENG (Engine Controller / Engine Control Module / ECM) | ECM detected engine initiated protection shutdown or keyed-off while above specific load limit. | Full repair manual for code 611, ENG (Engine Controller / Engine Control Module / ECM) |
| 626-03 - VCM | VCM | Vehicle controller drive enable voltage high | Full repair manual for code 626-03 - VCM, VCM |
| 626-04 - VCM | VCM | Vehicle controller drive enable voltage low | Full repair manual for code 626-04 - VCM, VCM |
| 627-01 - VCM | Engine Control Unit (ECU) | All injector currents are out of specification | Full repair manual for code 627-01 - VCM, Engine Control Unit (ECU) |
| 627-03 - VCM | VCM / UCM | Power supply voltage out of range high | Full repair manual for code 627-03 - VCM, VCM / UCM |
| 627-04 - ITBV | ITBV | 12V supply voltage low | Full repair manual for code 627-04 - ITBV, ITBV |
| 627-04 - VCM | UCM | Low voltage in the power supply of the steering valve | Full repair manual for code 627-04 - VCM, UCM |
| 627-24 - ITBV | ITBV | 12V supply voltage low | Full repair manual for code 627-24 - ITBV, ITBV |
| 628-12 - VCM | VCM | Internal Failure within the control module | Full repair manual for code 628-12 - VCM, VCM |
| 628-25 - ACM | ACM | Armrest controller application software disagreement | Full repair manual for code 628-25 - ACM, ACM |
| 629-02 - ITBV | ITBV | Trailer Brake Controller - Incorrect Trailer Brake Configuration | Full repair manual for code 629-02 - ITBV, ITBV |
| 629-02 - UCM | UCM | Vehicle controller loss of communication with steering valve controller | Full repair manual for code 629-02 - UCM, UCM |
| 629-03 - ITBV | ITBV (Intelligent Trailer Brake Valve) | ITBV: Trailer Brake Controller Internal Fault | Full repair manual for code 629-03 - ITBV, ITBV (Intelligent Trailer Brake Valve) |
| 629-04 - ITBV | ITBV | Trailer Brake Controller Internal Fault | Full repair manual for code 629-04 - ITBV, ITBV |
| 629-11 - ITBV | ITBV | Trailer Brake Controller Internal Fault | Full repair manual for code 629-11 - ITBV, ITBV |
| 629-12 - ITBV | ITBV (Intelligent Trailer Brake Valve) module | ITBV Internal Hardware Failure | Full repair manual for code 629-12 - ITBV, ITBV (Intelligent Trailer Brake Valve) module |
| 629-12 - VCM | VCM | Vehicle controller internal fault | Full repair manual for code 629-12 - VCM, VCM |
| 629-14 - ITBV | Trailer Brake Control (iTBV) module | Trailer Brake Controller Internal Fault | Full repair manual for code 629-14 - ITBV, Trailer Brake Control (iTBV) module |
| 629-19 - UCM | Universal Control Module (UCM) | Vehicle controller communication fault with the steering valve controller (SVC) | Full repair manual for code 629-19 - UCM, Universal Control Module (UCM) |
| 630-14 - ACM | ACM (Armrest Control Module) | Incorrect armrest controller configuration | Full repair manual for code 630-14 - ACM, ACM (Armrest Control Module) |
| 630-25 - ACM | Armrest Controller Module (ACM) | Armrest controller application software disagreement | Full repair manual for code 630-25 - ACM, Armrest Controller Module (ACM) |
| 639-02 - IMM | IMM | No CAN traffic for 5 seconds | Full repair manual for code 639-02 - IMM, IMM |
| 639-03 - IMM | IMM | SAE J1939 Data Link Voltage Above Normal, Or Shorted To High Source | Full repair manual for code 639-03 - IMM, IMM |
| 639-04 - IMM | IMM | J1939 Data Link Voltage Below Normal, or Shorted to Low Source | Full repair manual for code 639-04 - IMM, IMM |
| 639-09 - IMM | IMM | J1939 Data Link communications failure | Full repair manual for code 639-09 - IMM, IMM |
| 639-31 - ITBV | Intelligent Trailer Brake Valve (ITBV) Electronic Control Unit (ECU) | Trailer brake controller communication fault | Full repair manual for code 639-31 - ITBV, Intelligent Trailer Brake Valve (ITBV) Electronic Control Unit (ECU) |
| 684-03 - VCM | VCM (Vehicle Control Module) / Transmission Controller | VCM: Inching (clutch) pedal sensor voltage high | Full repair manual for code 684-03 - VCM, VCM (Vehicle Control Module) / Transmission Controller |
| 684-04 - VCM | VCM (Vehicle Control Module) or Transmission Controller (TCU) | Inching (clutch) pedal sensor signal voltage low | Full repair manual for code 684-04 - VCM, VCM (Vehicle Control Module) or Transmission Controller (TCU) |
| 684-05 - VCM | VCM | Inching (clutch) pedal switch disagreement | Full repair manual for code 684-05 - VCM, VCM |
| 684-06 - VCM | VCM | Inching (clutch) pedal switch disagreement | Full repair manual for code 684-06 - VCM, VCM |
| 684-07 - VCM | VCM | VCM Inching (clutch) pedal switch out of adjustment | Full repair manual for code 684-07 - VCM, VCM |
| 697 | Engine Controller | Engine Controller internal temperature too high | Full repair manual for code 697, Engine Controller |
| 698 | Engine Control Module (ECM) | Engine Controller internal temperature too low | Full repair manual for code 698, Engine Control Module (ECM) |
| 701-03 - UCM | UCM | Low voltage in the neutral switch of the transmission control lever | Full repair manual for code 701-03 - UCM, UCM |
| 701-04 - UCM | UCM | Scraper (auto aux) input 1 voltage low | Full repair manual for code 701-04 - UCM, UCM |
| 702-02 - ACM | ACM | Configurable switch 2 circuit fault | Full repair manual for code 702-02 - ACM, ACM |
| 702-03 - UCM | UCM | Scraper (auto aux) input 2 voltage high | Full repair manual for code 702-03 - UCM, UCM |
| 702-04 - UCM | UCM | Scraper (auto aux) input 2 voltage high | Full repair manual for code 702-04 - UCM, UCM |
