Proton fault codes
8,866 codes · 50 vehicle records · 175 ECU records · 0 live-data parameters
Codes 8,866
| Code | Description | Brands | System |
|---|---|---|---|
| P0A9B | Temperature sensor fault (severe) | 24 | Powertrain |
| P0A9C | Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance | 29 | Powertrain |
| P0A9D | Hybrid/EV Battery Temperature Sensor A Circuit Low | 29 | Powertrain |
| P0A9E | Hybrid/EV Battery Temperature Sensor A Circuit High | 31 | Powertrain |
| P0AA1 | Hybrid Battery Positive Contactor Circuit Stuck Closed | 31 | Powertrain |
| P0AA3 | Hybrid Battery Negative Contactor Circuit | 24 | Powertrain |
| P0AA4 | Hybrid/EV Battery Negative Contactor Circuit Stuck Closed | 31 | Powertrain |
| P0AA6 | Hybrid/Electric Vehicle Battery Voltage Shrinkage | 32 | Powertrain |
| P0AA7 | Cell voltage sensor fault | 32 | Powertrain |
| P0AA8 | Hybrid Battery Voltage Isolation Sensor Circuit Range/Performance | 25 | Powertrain |
| P0AA9 | Hybrid/EV Battery Voltage Isolation Sensor Circuit Low | 26 | Powertrain |
| P0AAA | Hybrid/EV Battery Voltage Isolation Sensor Circuit High | 26 | Powertrain |
| P0AAD | Hybrid Battery Pack Air Temperature Sensor A Circuit Range/Performance | 25 | Powertrain |
| P0AAE | Hybrid Battery Pack Air Temperature Sensor A Circuit Low | 27 | Powertrain |
| P0AAF | Hybrid Battery Pack Air Temperature Sensor A Circuit High | 27 | Powertrain |
| P0AB6 | Engine Mount B Control Circuit/Open | 22 | Powertrain |
| P0AB7 | Engine Mount B Control Circuit Low | 22 | Powertrain |
| P0AB8 | Engine Mount B Control Circuit High | 22 | Powertrain |
| P0ABA | Hybrid/EV Battery Pack Voltage Sense A Circuit | 27 | Powertrain |
| P0ABF | Hybrid/EV Battery Pack Current Sensor A Circuit | 32 | Powertrain |
| P0AC0 | Hybrid/EV Battery Pack Current Sensor A Circuit Range/Performance | 30 | Powertrain |
| P0AC1 | Hybrid/EV Battery Pack Current Sensor A Circuit Low | 30 | Powertrain |
| P0AC2 | Hybrid/EV Battery Pack Current Sensor A Circuit High | 30 | Powertrain |
| P0AC3 | Hybrid/EV Battery Pack Current Sensor A Circuit Intermittent/Erratic | 24 | Powertrain |
| P0AC4 | Hybrid Powertrain Control Module Requested MIL Illumination | 27 | Powertrain |
| P0AC5 | Hybrid Battery Temperature Sensor B Circuit | 23 | Powertrain |
| P0AC6 | Hybrid/EV Battery Temperature Sensor B Circuit Range/Performance | 29 | Powertrain |
| P0AC7 | Hybrid/EV Battery Temperature Sensor B Circuit Low | 29 | Powertrain |
| P0AC8 | Hybrid/EV Battery Temperature Sensor B Circuit High | 30 | Powertrain |
| P0ACA | Hybrid Battery Temperature Sensor C Circuit | 23 | Powertrain |
| P0ACB | Hybrid/EV Battery Temperature Sensor C Circuit Range/Performance | 29 | Powertrain |
| P0ACC | Hybrid/EV Battery Temperature Sensor C Circuit Low | 29 | Powertrain |
| P0ACD | Hybrid/EV Battery Temperature Sensor C Circuit High | 30 | Powertrain |
| P0AD0 | Hybrid Battery Pack Cooling Fan 3 Performance/Stuck Off | 22 | Powertrain |
| P0AD1 | Hybrid Battery Pack Cooling Fan 3 Stuck On | 22 | Powertrain |
| P0AD2 | Hybrid Battery Pack Cooling Fan 3 Control Circuit Low | 22 | Powertrain |
| P0ADB | Hybrid/EV Battery Positive Contactor Control Circuit Low | 29 | Powertrain |
| P0ADC | Hybrid/EV Battery Positive Contactor Control Circuit High | 28 | Powertrain |
| P0ADF | Hybrid/EV Battery Negative Contactor Control Circuit Low | 29 | Powertrain |
| P0AE0 | Hybrid/EV Battery Negative Contactor Control Circuit High | 28 | Powertrain |
| P0AE1 | Hybrid Battery Precharge Contactor Circuit | 24 | Powertrain |
| P0AE2 | Hybrid Battery Precharge Contactor Circuit Stuck Closed | 29 | Powertrain |
| P0AE4 | Hybrid/EV Battery Precharge Contactor A Control Circuit/Open | 29 | Powertrain |
| P0AE6 | Hybrid/EV Battery Precharge Contactor A Control Circuit Low | 29 | Powertrain |
| P0AE7 | Hybrid/EV Battery Precharge Contactor A Control Circuit High | 28 | Powertrain |
| P0AE8 | Hybrid Battery Temperature Sensor D Circuit | 24 | Powertrain |
| P0AE9 | Hybrid/EV Battery Temperature Sensor D Circuit Range/Performance | 27 | Powertrain |
| P0AEA | Hybrid/EV Battery Temperature Sensor D Circuit Low | 27 | Powertrain |
| P0AEB | Hybrid/EV Battery Temperature Sensor D Circuit High | 28 | Powertrain |
| P0AED | Drive Motor Inverter Temperature Sensor A Circuit | 26 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.