Proton fault codes
8,866 codes · 50 vehicle records · 175 ECU records · 0 live-data parameters
Codes 8,866
| Code | Description | Brands | System |
|---|---|---|---|
| P0B9A | Hybrid Battery Voltage Sense 'T' Circuit | 24 | Powertrain |
| P0B9F | Hybrid Battery Voltage Sense 'U' Circuit | 24 | Powertrain |
| P0BA4 | Rear trunk fuse box - right rear side light failure | 24 | Powertrain |
| P0BA9 | Hybrid Battery Voltage Sense 'W' Circuit | 25 | Powertrain |
| P0BAE | Rear trunk fuse box - Heated rear window failure | 25 | Powertrain |
| P0BB3 | Rear trunk fuse box - Rear trunk light control failure | 24 | Powertrain |
| P0BB8 | Hybrid/EV Battery Voltage Sense Z Circuit | 27 | Powertrain |
| P0BBF | Hybrid Battery Pack Cooling Fan Supply Voltage Circuit/Open | 23 | Powertrain |
| P0BC0 | Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit Low | 24 | Powertrain |
| P0BC1 | Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit High | 27 | Powertrain |
| P0BC2 | Outdoor right front sensor failure | 24 | Powertrain |
| P0BC3 | Hybrid/EV Battery Temperature Sensor E Circuit Range/Performance | 28 | Powertrain |
| P0BC4 | Hybrid/EV Battery Temperature Sensor E Circuit Low | 29 | Powertrain |
| P0BC5 | Hybrid/EV Battery Temperature Sensor E Circuit High | 28 | Powertrain |
| P0BCC | Outside right front sensor failure | 24 | Powertrain |
| P0BCD | Generator Inverter Temperature Sensor A Circuit Range/Performance | 28 | Powertrain |
| P0BCE | Generator Inverter Temperature Sensor A Circuit Low | 27 | Powertrain |
| P0BCF | Generator Inverter Temperature Sensor A Circuit High | 27 | Powertrain |
| P0BD1 | Left rear exterior sensor failure | 24 | Powertrain |
| P0BD2 | Left rear interior sensor failure | 27 | Powertrain |
| P0BD7 | Drive Motor Inverter Temperature Sensor D Circuit Range/Performance | 27 | Powertrain |
| P0BE6 | Interior Front antenna failure | 29 | Powertrain |
| P0BE7 | Rear interior antenna failure | 27 | Powertrain |
| P0BE8 | Rear shelf antenna failure | 27 | Powertrain |
| P0BEA | Drive motor 'A' phase V current sensor circuit range/performance | 28 | Powertrain |
| P0BEE | Drive motor 'A' phase W current sensor circuit range/performance | 29 | Powertrain |
| P0BEF | Drive motor 'A' phase W current sensor circuit low | 27 | Powertrain |
| P0BF0 | Drive motor 'A' phase W current sensor circuit high | 27 | Powertrain |
| P0BF2 | Drive motor 'B' phase U current sensor circuit range/performance | 26 | Powertrain |
| P0BF6 | Drive motor 'B' phase V current sensor circuit range/performance | 27 | Powertrain |
| P0BF7 | Drive motor 'B' phase V current sensor circuit low | 26 | Powertrain |
| P0BF8 | Drive motor 'B' phase V current sensor circuit high | 26 | Powertrain |
| P0BFA | Drive motor 'B' phase W current sensor circuit range/performance | 27 | Powertrain |
| P0BFB | Drive motor 'B' phase W current sensor circuit low | 26 | Powertrain |
| P0BFC | Hands-free access and activation of ECU internal faults | 26 | Powertrain |
| P0BFD | Electronic ignition switch (AVE) power supply failure | 30 | Powertrain |
| P0BFE | Ensures ignition positive phase failure | 28 | Powertrain |
| P0C01 | Controller hardware overcurrent | 28 | Powertrain |
| P0C04 | External temperature sensor fault | 26 | Powertrain |
| P0C11 | Drive Motor A Inverter Phase U Over Temperature | 25 | Powertrain |
| P0C12 | Drive motor 'A' inverter phase V overtemperature | 24 | Powertrain |
| P0C13 | Traction control (anti-slip regulation) failure | 24 | Powertrain |
| P0C14 | Electronic control unit software fault | 24 | Powertrain |
| P0C16 | Drive motor 'B' inverter phase W overtemperature | 24 | Powertrain |
| P0C29 | Electric/Auxiliary Transmission Fluid Pump A Driver Circuit Performance | 23 | Powertrain |
| P0C2A | Auxiliary Transmission Fluid Pump Motor Stalled | 22 | Powertrain |
| P0C2F | Internal control module drive motor/generator - engine speed sensor performance | 22 | Powertrain |
| P0C30 | Hybrid/EV Battery Pack State of Charge High | 29 | Powertrain |
| P0C33 | Hybrid Battery Temperature Sensor 'F' Circuit | 22 | Powertrain |
| P0C34 | Hybrid/EV Battery Temperature Sensor F Circuit Range/Performance | 26 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.