Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 41 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 2635 | ZTC | Implausible reading between the two hydrostatic unit speed sensors: number of teeth N_Hyd2 is less than N_Hyd1 | Full repair manual for code 2635, ZTC |
| 2636 | ZTC | Transmission clutch slipping error. Transmission clutch overload condition. | Full repair manual for code 2636, ZTC |
| 2636-03 - BCM | BCM | Front wiper high speed motor - short circuit to B+ | Full repair manual for code 2636-03 - BCM, BCM |
| 2636-05 - BCM | BCM | Current Below Normal or Open Circuit | Full repair manual for code 2636-05 - BCM, BCM |
| 2636-06 - BCM | BCM | Short circuit to ground on the front wiper high-speed motor circuit | Full repair manual for code 2636-06 - BCM, BCM |
| 2637 (519184.12) - DEC | DEC | Valve S Blocked during Synchro M engagment | Full repair manual for code 2637 (519184.12) - DEC, DEC |
| 2639 | Transmission Control Unit (TCU) | Range clutch K1 is open circuit | Full repair manual for code 2639, Transmission Control Unit (TCU) |
| 2640 (6153.14) - DEC | DEC | Unwanted engaged or disengaged of Synchro 2 | Full repair manual for code 2640 (6153.14) - DEC, DEC |
| 2640 | ZTC | Range clutch K2 is open circuit | Full repair manual for code 2640, ZTC |
| 2641 | ZF Transmission Controller (ZTC) | Open circuit at the Range Clutch K3 | Full repair manual for code 2641, ZF Transmission Controller (ZTC) |
| 2642 (6157.14) - DEC | DEC (Drivetrain Electronic Control) | Unwanted engaged or disengaged of Synchro 6 | Full repair manual for code 2642 (6157.14) - DEC, DEC (Drivetrain Electronic Control) |
| 2642 | ZTC | ZTC - Range clutch K4 is open circuit | Full repair manual for code 2642, ZTC |
| 2642-00 - BCM | Body Control Module (BCM) | Left Mirror Heat Circuit Overcurrent / Short to Ground | Full repair manual for code 2642-00 - BCM, Body Control Module (BCM) |
| 2642-03 - BCM | BCM | Left mirror heater - short circuit to B+ | Full repair manual for code 2642-03 - BCM, BCM |
| 2642-05 - BCM | Body Control Module (BCM) | Mirror 1 Heater / Left Mirror Heater - Current Below Normal or Open Circuit | Full repair manual for code 2642-05 - BCM, Body Control Module (BCM) |
| 2642-06 - BCM | BCM | Left mirror heater - short circuit to ground | Full repair manual for code 2642-06 - BCM, BCM |
| 2643 | ZTC | Range Clutch BG Open Circuit | Full repair manual for code 2643, ZTC |
| 2644 | TCM / TCU | Hydrostatic unit positive solenoid is open circuit | Full repair manual for code 2644, TCM / TCU |
| 2645 | Transmission Control Unit (TCU / TECU) | Hydrostatic unit negative solenoid open circuit | Full repair manual for code 2645, Transmission Control Unit (TCU / TECU) |
| 2646 (6156.14) - DEC | TCU | Synchro 5 Unwanted Engagement or Disengagement | Full repair manual for code 2646 (6156.14) - DEC, TCU |
| 2646 | ZTC | Open Circuit at Clutch KV | Full repair manual for code 2646, ZTC |
| 2647 | ZTC (ZF Transmission Controller) | Open Electrical Circuit in Reverse Direction Clutch (Clutch KR) | Full repair manual for code 2647, ZTC (ZF Transmission Controller) |
| 2648 | ZF Transmission Controller (ZTC) / TCU | Short circuit to ground at clutch K1 | Full repair manual for code 2648, ZF Transmission Controller (ZTC) / TCU |
| 2649 | Transmission Control Unit (TCU) | Range Clutch K2 Proportional Solenoid Valve Short Circuit to Ground | Full repair manual for code 2649, Transmission Control Unit (TCU) |
| 2650 (519185.14) - DEC | DEC | Unwanted engaged or disengaged of Synchro F | Full repair manual for code 2650 (519185.14) - DEC, DEC |
| 2650 | ZF Transmission Controller (ZTC) | Range clutch K3 is shorted to ground | Full repair manual for code 2650, ZF Transmission Controller (ZTC) |
| 2651 | ZTC | Range clutch K4 is shorted to ground | Full repair manual for code 2651, ZTC |
| 2652 (160.02) - DEC | Transmission Control Unit (TCU) or Vehicle ECU | Hydro Out Speed Sensor No Signal - Data erratic; no signal | Full repair manual for code 2652 (160.02) - DEC, Transmission Control Unit (TCU) or Vehicle ECU |
| 2652 | ZTC | ZTC - Range clutch BG is shorted to ground. | Full repair manual for code 2652, ZTC |
| 2653 | TCU | Hydrostatic unit positive solenoid shorted to ground | Full repair manual for code 2653, TCU |
| 2653-00 - BCM | BCM | Headlamp low beam left - too many loads or faulty load | Full repair manual for code 2653-00 - BCM, BCM |
| 2653-03 - BCM | Body Control Module (BCM) | Headlamp low beam left #1 - Voltage above Normal, or Shorted to High Source | Full repair manual for code 2653-03 - BCM, Body Control Module (BCM) |
| 2653-05 - BCM | Body Control Module (BCM) | Headlamp Low Beam Left #1 - Current below normal or open circuit | Full repair manual for code 2653-05 - BCM, Body Control Module (BCM) |
| 2653-06 - BCM | Body Control Module (BCM) | Left Low Beam Short to Ground | Full repair manual for code 2653-06 - BCM, Body Control Module (BCM) |
| 2654 | ZTC | Hydrostatic unit (HSU) solenoid shorted to ground fault | Full repair manual for code 2654, ZTC |
| 2655 | ZTC (ZF Transmission Controller) | Short circuit to ground at clutch KV | Full repair manual for code 2655, ZTC (ZF Transmission Controller) |
| 2655-00 - BCM | Body Control Module (BCM) | Headlamp Low Beam Right #1 - too many loads or faulty load | Full repair manual for code 2655-00 - BCM, Body Control Module (BCM) |
| 2655-03 - BCM | BCM | Headlamp low beam right - short circuit to B+ | Full repair manual for code 2655-03 - BCM, BCM |
| 2655-05 - BCM | Body Controller (BCM) | Headlamp Low Beam Right #1 - Current below normal or open circuit | Full repair manual for code 2655-05 - BCM, Body Controller (BCM) |
| 2655-06 - BCM | Body Control Module (BCM) | Headlamp Low Beam Right #1 - Short circuit to ground | Full repair manual for code 2655-06 - BCM, Body Control Module (BCM) |
| 2656 | ZTC | Reverse direction clutch KR is shorted to ground | Full repair manual for code 2656, ZTC |
| 2657 | ZTC | ZTC - Range clutch K1 is shorted to power | Full repair manual for code 2657, ZTC |
| 2658 | ZTC | Range clutch K2 is shorted to power | Full repair manual for code 2658, ZTC |
| 2659 | Engine Control Unit (ECU / EDC) | EGR System Failure or Mismatch | Full repair manual for code 2659, Engine Control Unit (ECU / EDC) |
| 2660 (741.11) - DEC | DEC | DEC: Clutch FWD Solenoid - Generic error | Full repair manual for code 2660 (741.11) - DEC, DEC |
| 2660 | ZTC | Range clutch K4 shorted to power | Full repair manual for code 2660, ZTC |
| 2660-09 - ACM | ACM | Joystick disconnected while powered on | Full repair manual for code 2660-09 - ACM, ACM |
| 2660-13 - ACM | ACM | Joystick 1 X-Axis Position - Input Not Calibrated | Full repair manual for code 2660-13 - ACM, ACM |
| 2660-14 - ACM | ACM | BJM1 X - Redundant Input Failure | Full repair manual for code 2660-14 - ACM, ACM |
| 2660-19 - ACM | ACM | Joystick disconnected | Full repair manual for code 2660-19 - ACM, ACM |
