JCB fault codes & repair guides
All 586 codes· 50 per page · page 1 of 12
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 0x00 | — | AMF Electrical Sensor Low Fault | Full repair manual for code 0x00 |
| 0x00 | — | Intake Manifold 2 Temperature Sensor Signal Noise Fault | Full repair manual for code 0x00 |
| 0x00 | — | Common Rail Pressure Fall (No Feed) | Full repair manual for code 0x00 |
| 0x00 | — | Coolant Sensor Fault (Plausibility) | Full repair manual for code 0x00 |
| 0x00 | — | Coolant Temperature Sensor Performance Invalid | Full repair manual for code 0x00 |
| 0x00 | — | MAF Low Voltage Fault | Full repair manual for code 0x00 |
| 0x00 | — | HPV Hardware Current Control Trim High | Full repair manual for code 0x00 |
| 0x00 | — | MAF Sensor Fault | Full repair manual for code 0x00 |
| 0x00 | — | Intake Throttle Position Low Voltage Fault | Full repair manual for code 0x00 |
| 0x00 | — | AMF High Side Driver Fault - Open Circuit or Short Circuit to Battery | Full repair manual for code 0x00 |
| 0x00 | — | HPV Regulation Control Trim High | Full repair manual for code 0x00 |
| 0x00 | — | SCV High Voltage Fault | Full repair manual for code 0x00 |
| 0x00 | — | Inlet Air Temperature (IAT) sensor signal ADC fault detected | Full repair manual for code 0x00 |
| 0x00 | — | Boost Pressure Sensor Fault - High Voltage Fault | Full repair manual for code 0x00 |
| 0x00 | — | Coolant Sensor Signal High Fault | Full repair manual for code 0x00 |
| 0x00 | — | HPV Current Feedback High Fault Detected | Full repair manual for code 0x00 |
| 0x00 | — | HPV Not Stuck During IMV Regulation | Full repair manual for code 0x00 |
| 0x00 | — | Intake Manifold Absolute Pressure (MAP) Sensor Signal Plausibility High Fault | Full repair manual for code 0x00 |
| 0x00 | — | Coolant Temperature Sensor Signal Too Low | Full repair manual for code 0x00 |
| 0x00 | — | Fuel Temperature ADC Fault | Full repair manual for code 0x00 |
| 0x3D | — | Erroneous Signal for Barometric Pressure | Full repair manual for code 0x3D |
| 0x3D | — | CAN Bus Message Error for Coolant Sensor from Engine ECU | Full repair manual for code 0x3D |
| B0300 | — | Low Flow Thumbwheel Voltage High Fault Condition | Full repair manual for code B0300 |
| B0301 | — | High Flow Thumbwheel Voltage Low Fault Condition | Full repair manual for code B0301 |
| B0302 | — | High Flow Thumbwheel Voltage High Fault Condition | Full repair manual for code B0302 |
| B0303 | — | High Flow Thumbwheel Voltage Low Fault Condition | Full repair manual for code B0303 |
| B1002 | — | Alternator Excitation Open Circuit | Full repair manual for code B1002 |
| B1002 | — | Alternator Not Charging | Full repair manual for code B1002 |
| B105A | — | High Voltage Detected at Sensor | Full repair manual for code B105A |
| B105B | — | High Voltage Detected at Sensor | Full repair manual for code B105B |
| B105C | — | High Voltage Detected at Sensor | Full repair manual for code B105C |
| B105D | — | Low Voltage Detected in Sensor Circuit | Full repair manual for code B105D |
| B1300 | — | Voltage Above Normal in Power Band Select Circuit | Full repair manual for code B1300 |
| B1301 | — | Voltage Below Normal - Power Band Select Potentiometer | Full repair manual for code B1301 |
| B1302 | — | Controls Enable Switch Fault | Full repair manual for code B1302 |
| B1303 | — | Fuel Lift Pump Relay Short Circuit | Full repair manual for code B1303 |
| B1304 | — | Fuel Lift Pump Relay Open Circuit | Full repair manual for code B1304 |
| B1307 | — | Short Circuit in Interior Illumination Circuit | Full repair manual for code B1307 |
| B1308 | — | OPEN CIRCUIT/BULB FAIL [C059-LIGHT: INTERIOR ILLUMINATION] | Full repair manual for code B1308 |
| B1546 | — | Coolant Temperature High (Operator Level) | Full repair manual for code B1546 |
| C0300 | — | Short Circuit Fault Condition for the Low Flow A Solenoid | Full repair manual for code C0300 |
| C0301 | — | Low Flow A Solenoid Open Circuit Fault | Full repair manual for code C0301 |
| C0302 | — | Short Circuit Fault Condition for the Low Flow B Solenoid | Full repair manual for code C0302 |
| C0303 | — | Low Flow B Solenoid Open Circuit Fault | Full repair manual for code C0303 |
| C0304 | — | Short Circuit Fault Condition for the High Flow A Solenoid | Full repair manual for code C0304 |
| C0305 | — | High Flow A Solenoid Open Circuit Fault | Full repair manual for code C0305 |
| C0306 | — | Short Circuit Fault Condition for the High Flow B Solenoid | Full repair manual for code C0306 |
| C0307 | — | High Flow B Solenoid Open Circuit Fault | Full repair manual for code C0307 |
| C0308 | — | Short Circuit Fault Condition for the Quick Hitch Solenoid | Full repair manual for code C0308 |
| C0309 | — | Quick Hitch Solenoid Open Circuit Fault | Full repair manual for code C0309 |
