Case IH fault codes & repair guides
All 9,847 codes· 50 per page · page 40 of 197
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 2600 (519375.17) - DEC | Transmission Controller (TCU) | Transmission Pressure Sensor - Pressure too low | Full repair manual for code 2600 (519375.17) - DEC, Transmission Controller (TCU) |
| 2601 | Electronic System / Cab Controller | Pressure motor blower fault | Full repair manual for code 2601, Electronic System / Cab Controller |
| 2601 | Transmission Control Unit (TCU) / SPS Transmission module | 12VF1 voltage supply is low | Full repair manual for code 2601, Transmission Control Unit (TCU) / SPS Transmission module |
| 2602 | Transmission Control Unit (TCU) or Tractor Controller (TRC) | Transmission Oil Temperature Too High | Full repair manual for code 2602, Transmission Control Unit (TCU) or Tractor Controller (TRC) |
| 2602 | Transmission Control Unit (TCU) or Universal Control Module (UCM) / Vehicle Control Module (VCM) | Low power supply voltage 12VT1 | Full repair manual for code 2602, Transmission Control Unit (TCU) or Universal Control Module (UCM) / Vehicle Control Module (VCM) |
| 2603 | TCU (Transmission Control Unit) | Low power supply voltage 12VF2 | Full repair manual for code 2603, TCU (Transmission Control Unit) |
| 2603 | Transmission Control Unit (TCU) or Body Control Unit (BCU) | Transmission Oil Temperature Too Low | Full repair manual for code 2603, Transmission Control Unit (TCU) or Body Control Unit (BCU) |
| 2604 (5913.15) - DEC | Transmission Control Module (TCM) | Transmission Oil Temperature Sensor - temp too high | Full repair manual for code 2604 (5913.15) - DEC, Transmission Control Module (TCM) |
| 2604 | VCM / UCM / TMF | 12VH voltage supply is low | Full repair manual for code 2604, VCM / UCM / TMF |
| 2605 (5913.18) - DEC | Drivetrain Electronic Controller (DEC) / Transmission Control Unit (TCU) / Instrument Controller (INST) | Transmission Oil Temperature Sensor - temp too low. | Full repair manual for code 2605 (5913.18) - DEC, Drivetrain Electronic Controller (DEC) / Transmission Control Unit (TCU) / Instrument Controller (INST) |
| 2605 | Tractor Control Unit (TCU) | 12VS1 voltage supply is low | Full repair manual for code 2605, Tractor Control Unit (TCU) |
| 2607 (518372.05) - DEC | DEC | HST CutOff solenoid - open circuit | Full repair manual for code 2607 (518372.05) - DEC, DEC |
| 2608 (191.19) - DEC | Transmission Controller | Transmission Output Speed Sensor 1 & 2 - Abnormal Frequency Or Pulse Width Or Period on sensor 1 | Full repair manual for code 2608 (191.19) - DEC, Transmission Controller |
| 2609 (191.13) - DEC | Engine Control Module (ECM) or Transmission Control Unit (TCU) | Transmission Output Shaft Speed Signal Missing or Not Available | Full repair manual for code 2609 (191.13) - DEC, Engine Control Module (ECM) or Transmission Control Unit (TCU) |
| 2610 (6152.01) - DEC | DEC | Full repair manual for code 2610 (6152.01) - DEC, DEC | |
| 2611 | Transmission Control Unit (TCU) | Bottom of inching pedal switch not plausible (CCO switch) | Full repair manual for code 2611, Transmission Control Unit (TCU) |
| 2612 (6153.01) - DEC | DEC | Synchro 2/4 plausibility check - Data Valid But Below Normal Operational Range - Most Severe Level | Full repair manual for code 2612 (6153.01) - DEC, DEC |
| 2612 | ZTC Controller | Transmission enable relay (RED6 input) plausibility fault | Full repair manual for code 2612, ZTC Controller |
| 2614 (6156.01) - DEC | Transmission Control Unit (TCU) | Synchro 5/7 plausibility check | Full repair manual for code 2614 (6156.01) - DEC, Transmission Control Unit (TCU) |
| 2614 | Transmission Control Unit (TCU) or Instrumentation Controller (INST) | Transmission oil temperature sensor is shorted to ground | Full repair manual for code 2614, Transmission Control Unit (TCU) or Instrumentation Controller (INST) |
| 2616 (6157.01) - DEC | DEC | Synchro 6/8 plausibility check - Data Valid But Below Normal Operational Range - Most Severe Level | Full repair manual for code 2616 (6157.01) - DEC, DEC |
| 2616 | ZTC controller | Transmission direction clutches supply feedback (RED5 input) plausibility mismatch | Full repair manual for code 2616, ZTC controller |
| 2617 (6157.00) - DEC | DEC | Transmission Synchronizer 6 - Data Valid But Above Normal Operational Range | Full repair manual for code 2617 (6157.00) - DEC, DEC |
| 2617 | ZTC Controller | Transmission range clutches supply feedback not plausible (RED6 input) | Full repair manual for code 2617, ZTC Controller |
| 2618 | Instrument Controller (INST) or Transmission Controller (Trans) | Transmission oil temperature sensor is open circuit or shorted to power | Full repair manual for code 2618, Instrument Controller (INST) or Transmission Controller (Trans) |
| 2618 (519183.01) - DEC | Transmission Control Unit (TCU) or Vehicle Control Unit | Synchro S/M plausibility check | Full repair manual for code 2618 (519183.01) - DEC, Transmission Control Unit (TCU) or Vehicle Control Unit |
| 2619 (519183.00) - DEC | DEC | Full repair manual for code 2619 (519183.00) - DEC, DEC | |
| 2620 (519185.01) - DEC | DEC | Shuttle lever forward switch - invalid signal | Full repair manual for code 2620 (519185.01) - DEC, DEC |
| 2620 | ZTC | Transmission Input Shaft Speed Sensor Short to Ground | Full repair manual for code 2620, ZTC |
| 2621 (519185.00) - DEC | Transmission Control Unit (TCU) | Synchro F/N plausibility check / invalid signal from Shuttle lever reverse/neutral switch | Full repair manual for code 2621 (519185.00) - DEC, Transmission Control Unit (TCU) |
| 2621 | Transmission Control Unit (TCU) | Transmission Output Shaft Speed Sensor (N_Ab1) Short Circuit to Ground | Full repair manual for code 2621, Transmission Control Unit (TCU) |
| 2622 (6153.18) - DEC | DEC | Synchro 2/4 or 6/8 disengage error | Full repair manual for code 2622 (6153.18) - DEC, DEC |
| 2622 | ZTC | Hydrostatic unit speed sensor (N_Hyd1) is shorted to ground | Full repair manual for code 2622, ZTC |
| 2623 | Transmission Control Unit (TCU) | Short circuit to minus at N_Ab2 speed sensor | Full repair manual for code 2623, Transmission Control Unit (TCU) |
| 2623 (6153.16) - DEC | Transmission Control Unit (TCU) or Gear Control Unit (GCU) | Synchro 2/4 or 6/8 disengage error | Full repair manual for code 2623 (6153.16) - DEC, Transmission Control Unit (TCU) or Gear Control Unit (GCU) |
| 2624 | Transmission Control Unit (TCU) | Hydrostatic unit speed sensor (N_Hyd2) shorted to ground | Full repair manual for code 2624, Transmission Control Unit (TCU) |
| 2625 | ZTC | Transmission input shaft speed sensor (N_An) is open circuit or shorted to power | Full repair manual for code 2625, ZTC |
| 2626 | ZF Transmission Controller (ZTC) | Transmission Output Shaft Speed Sensor (N_Ab1) Circuit Open or Shorted to Power | Full repair manual for code 2626, ZF Transmission Controller (ZTC) |
| 2627 (519183.16) - DEC | DEC | Synchro S/M or F/N disengage error | Full repair manual for code 2627 (519183.16) - DEC, DEC |
| 2627 | Transmission Control Unit (TCU) / ZTC | Hydrostatic unit speed sensor (N_Hyd1) open circuit or shorted to power | Full repair manual for code 2627, Transmission Control Unit (TCU) / ZTC |
| 2628 | ZTC | Transmission output shaft speed sensor (N_Ab2) open circuit or shorted to power | Full repair manual for code 2628, ZTC |
| 2629 | ZTC | Hydrostatic Unit Speed Sensor 2 (N_Hyd2) Circuit Open or Shorted to Power | Full repair manual for code 2629, ZTC |
| 2630 (6157.12) - DEC | Engine ECU | Charge Air Cooler Outlet Temperature (CACOT) | Full repair manual for code 2630 (6157.12) - DEC, Engine ECU |
| 2630 | ZTC | Logical error at the transmission input shaft speed sensor (N_An) | Full repair manual for code 2630, ZTC |
| 2631 (519182.12) - DEC | DEC | Synchro 2/4 or 6/8 engage error - Valve 6 Blocked during Synchro8 engagment | Full repair manual for code 2631 (519182.12) - DEC, DEC |
| 2631 | Transmission Control Unit (TCU) / ZTC | Transmission input shaft speed sensor measured speed not corresponding with engine speed CAN signal | Full repair manual for code 2631, Transmission Control Unit (TCU) / ZTC |
| 2632 | ZTC (Transmission Controller) | Transmission output shaft speed sensor not plausible, number of teeth N_Ab1 is less than N_Ab2 | Full repair manual for code 2632, ZTC (Transmission Controller) |
| 2633 | ZTC | ZTC - Hydrostatic unit speed sensor not plausible, number of teeth N_Hyd1 is less than N_Hyd2 | Full repair manual for code 2633, ZTC |
| 2634 | Transmission Control Unit (TCU) | ZTC - Transmission output shaft speed sensor not plausible, number of teeth N_Ab2 is less than N_Ab1 | Full repair manual for code 2634, Transmission Control Unit (TCU) |
| 2635 (6158.12) - DEC | Transmission Controller (TRANS) or Armrest Controller (ARM) | Synchro 1/3 or 5/7 engage error - Valve 5 Blocked during Synchro7 engagment | Full repair manual for code 2635 (6158.12) - DEC, Transmission Controller (TRANS) or Armrest Controller (ARM) |
