OBD2 · Powertrain
P0Axx codes: hybrid and EV propulsion
170 codes in this range, all generic — the same meaning on every make. Hybrid and electric drive: the high-voltage battery and its cooling, contactors, drive motors and generators, the inverter and DC-DC converter, and their temperature and current sensors.
What usually causes codes in this area
- High-voltage battery cells ageing or out of balance
- A clogged battery cooling fan or air intake
- Coolant problems in the inverter or motor electronics
- Sensor and wiring faults in the high-voltage system
Can you keep driving?
Drive cautiously and have it checked promptly — power may be limited or the system may shut down. Never open or probe high-voltage parts yourself: the orange cables carry lethal voltage.
All P0Axx codes
| Code | Meaning |
|---|---|
| P0A00 | Motor Electronics Coolant Temperature Sensor Circuit |
| P0A01 | Motor Electronics Coolant Temperature Sensor Circuit Range/Performance |
| P0A02 | Motor Electronics Coolant Temperature Sensor Circuit Low |
| P0A03 | Motor Electronics Coolant Temperature Sensor Circuit High |
| P0A04 | Motor Electronics Coolant Temperature Sensor Circuit Intermittent |
| P0A05 | Motor Electronics Coolant Pump Control Circuit/Open |
| P0A06 | Motor Electronics Coolant Pump Control Circuit Low |
| P0A07 | Motor Electronics Coolant Pump Control Circuit High |
| P0A08 | DC/DC Converter Status Circuit |
| P0A09 | DC/DC Converter Status Circuit Low Input |
| P0A0A | High Voltage System Interlock Circuit |
| P0A0B | High Voltage System Interlock Circuit Performance |
| P0A0C | High Voltage System Interlock Circuit Low |
| P0A0D | High Voltage System Interlock Circuit High |
| P0A0E | High Voltage System Interlock Circuit Intermittent |
| P0A0F | Engine Failed to Start |
| P0A10 | DC/DC Converter Enable Circuit |
| P0A11 | DC/DC Converter Enable Circuit Low |
| P0A12 | DC/DC Converter Enable Circuit High |
| P0A13 | DC/DC Converter Status Circuit High Input |
| P0A14 | Engine Shut Off Switch Circuit |
| P0A15 | Engine Shut Off Switch Circuit Low |
| P0A16 | Engine Shut Off Switch Circuit High |
| P0A17 | Motor Torque Sensor Circuit |
| P0A18 | Motor Torque Sensor Circuit Range/Performance |
| P0A19 | Motor Torque Sensor Circuit Low |
| P0A1A | Generator Control Module |
| P0A1B | Drive Motor "A" Control Module |
| P0A1C | Drive Motor "B" Control Module |
| P0A1D | Hybrid/EV Powertrain Control Module |
| P0A1E | Starter/Generator Control Module |
| P0A1F | Battery Energy Control Module |
| P0A23 | Generator Torque Sensor Circuit |
| P0A24 | Generator Torque Sensor Circuit Range/Performance |
| P0A25 | Generator Torque Sensor Circuit Low |
| P0A2A | Drive Motor "A" Temperature Sensor Circuit |
| P0A2B | Drive Motor "A" Temperature Sensor Circuit Range/Performance |
| P0A2C | Drive Motor "A" Temperature Sensor Circuit Low |
| P0A2D | Drive Motor "A" Temperature Sensor Circuit High |
| P0A2E | Drive Motor "A" Temperature Sensor Circuit Intermittent |
| P0A2F | Drive Motor "A" Over Temperature |
| P0A30 | Drive Motor "B" Temperature Sensor Circuit |
| P0A31 | Drive Motor "B" Temperature Sensor Circuit Range/Performance |
| P0A32 | Drive Motor "B" Temperature Sensor Circuit Low |
| P0A33 | Drive Motor "B" Temperature Sensor Circuit High |
| P0A34 | Drive Motor "B" Temperature Sensor Circuit Intermittent |
| P0A35 | Drive Motor "B" Over Temperature |
| P0A36 | Generator Temperature Sensor Circuit |
| P0A37 | Generator Temperature Sensor Circuit Range/Performance |
| P0A38 | Generator Temperature Sensor Circuit Low |
| P0A39 | Generator Temperature Sensor Circuit High |
| P0A3A | Generator Temperature Sensor Circuit Intermittent |
| P0A3B | Generator Over Temperature |
| P0A3C | Drive Motor "A" Inverter Over Temperature |
| P0A3D | Drive Motor "B" Inverter Over Temperature |
| P0A3E | Generator Inverter Over Temperature |
| P0A3F | Drive Motor "A" Position Sensor Circuit |
| P0A40 | Drive Motor "A" Position Sensor Circuit Range/Performance |
| P0A41 | Drive Motor "A" Position Sensor Circuit Low |
| P0A42 | Drive Motor "A" Position Sensor Circuit High |
| P0A43 | Drive Motor "A" Position Sensor Circuit Intermittent |
| P0A44 | Drive Motor "A" Position Sensor Circuit Overspeed |
| P0A45 | Drive Motor "B" Position Sensor Circuit |
| P0A46 | Drive Motor "B" Position Sensor Circuit Range/Performance |
| P0A47 | Drive Motor "B" Position Sensor Circuit Low |
| P0A48 | Drive Motor "B" Position Sensor Circuit High |
| P0A49 | Drive Motor "B" Position Sensor Circuit Intermittent |
| P0A4A | Drive Motor "B" Position Sensor Circuit Overspeed |
| P0A4B | Generator Position Sensor Circuit |
| P0A4C | Generator Position Sensor Circuit Range/Performance |
| P0A4D | Generator Position Sensor Circuit Low |
| P0A4E | Generator Position Sensor Circuit High |
| P0A4F | Generator Position Sensor Circuit Intermittent |
| P0A50 | Generator Position Sensor Circuit Overspeed |
| P0A51 | Drive Motor "A" Current Sensor Circuit |
| P0A52 | Drive Motor "A" Current Sensor Circuit Range/Performance |
| P0A53 | Drive Motor "A" Current Sensor Circuit Low |
| P0A54 | Drive Motor "A" Current Sensor Circuit High |
| P0A55 | Drive Motor "A" Current Sensor Circuit Intermittent |
| P0A56 | Drive Motor "B" Current Sensor Circuit |
| P0A57 | Drive Motor "B" Current Sensor Circuit Range/Performance |
| P0A58 | Drive Motor "B" Current Sensor Circuit Low |
| P0A59 | Drive Motor "B" Current Sensor Circuit High |
| P0A5A | Drive Motor "B" Current Sensor Circuit Intermittent |
| P0A5B | Generator Current Sensor Circuit |
| P0A5C | Generator Current Sensor Circuit Range/Performance |
| P0A5D | Generator Current Sensor Circuit Low |
| P0A5E | Generator Current Sensor Circuit High |
| P0A5F | Generator Current Sensor Circuit Intermittent |
| P0A60 | Drive Motor "A" Phase U Current |
| P0A61 | Drive Motor "A" Phase V Current |
| P0A62 | Drive Motor "A" Phase W Current |
| P0A63 | Drive Motor "B" Phase U Current |
| P0A64 | Drive Motor "B" Phase V Current |
| P0A65 | Drive Motor "B" Phase W Current |
| P0A66 | Generator Phase U Current |
| P0A67 | Generator Phase V Current |
| P0A68 | Generator Phase W Current |
| P0A78 | Drive Motor "A" Inverter Performance |
| P0A79 | Drive Motor "B" Inverter Performance |
| P0A7A | Generator Inverter Performance |
| P0A7F | Hybrid Battery Pack Deterioration |
| P0A80 | Replace Hybrid Battery Pack |
| P0A81 | Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit |
| P0A82 | Hybrid/EV Battery Pack Cooling Fan 1 Performance/Stuck Off |
| P0A83 | Hybrid/EV Battery Pack Cooling Fan 1 Stuck On |
| P0A84 | Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit Low |
| P0A85 | Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit High |
| P0A86 | Hybrid/EV Battery Pack Cooling Fan 2 Control Circuit |
| P0A87 | Hybrid/EV Battery Pack Cooling Fan 2 Performance/Stuck Off |
| P0A88 | Hybrid/EV Battery Pack Cooling Fan 2 Stuck On |
| P0A89 | Hybrid/EV Battery Pack Cooling Fan 2 Control Circuit Low |
| P0A8A | Hybrid/EV Battery Pack Cooling Fan 2 Control Circuit High |
| P0A8B | 14 Volt Power Module System Voltage |
| P0A8C | 14 Volt Power Module System Voltage Unstable |
| P0A8D | 14 Volt Power Module System Voltage Low |
| P0A8E | 14 Volt Power Module System Voltage High |
| P0A90 | Drive Motor "A" Performance |
| P0A91 | Drive Motor "B" Performance |
| P0A92 | Hybrid Generator Performance |
| P0A93 | Inverter "A" Cooling System Performance |
| P0A94 | DC/DC Converter Performance |
| P0A95 | High Voltage Fuse |
| P0A9C | Hybrid/EV Battery Temperature Sensor "A" Circuit |
| P0A9D | Hybrid/EV Battery Temperature Sensor "A" Circuit Low |
| P0A9E | Hybrid/EV Battery Temperature Sensor "A" Circuit High |
| P0AA0 | Hybrid/EV Battery Positive Contactor Circuit |
| P0AA1 | Hybrid/EV Battery Positive Contactor Circuit Stuck Closed |
| P0AA2 | Hybrid/EV Battery Positive Contactor Circuit Stuck Open |
| P0AA3 | Hybrid/EV Battery Negative Contactor Circuit |
| P0AA4 | Hybrid/EV Battery Negative Contactor Circuit Stuck Closed |
| P0AA5 | Hybrid/EV Battery Negative Contactor Circuit Stuck Open |
| P0AA6 | Hybrid Battery Voltage System Isolation Fault |
| P0AA7 | Hybrid/EV Battery Voltage Isolation Sensor Circuit |
| P0AA8 | Hybrid/EV Battery Voltage Isolation Sensor Circuit Range/Performance |
| P0AA9 | Hybrid/EV Battery Voltage Isolation Sensor Circuit Low |
| P0AAA | Hybrid/EV Battery Voltage Isolation Sensor Circuit High |
| P0AAB | Hybrid/EV Battery Voltage Isolation Sensor Circuit Intermittent/Erratic |
| P0AAC | Hybrid/EV Battery Pack Air Temperature Sensor "A" Circuit |
| P0AAD | Hybrid/EV Battery Pack Air Temperature Sensor "A" Circuit Range/Performance |
| P0AAE | Hybrid/EV Battery Pack Air Temperature Sensor "A" Circuit Low |
| P0AAF | Hybrid/EV Battery Pack Air Temperature Sensor "A" Circuit High |
| P0AB0 | Hybrid/EV Battery Pack Air Temperature Sensor "A" Circuit Intermittent/Erratic |
| P0AB1 | Hybrid/EV Battery Pack Air Temperature Sensor "B" Circuit |
| P0AB2 | Hybrid/EV Battery Pack Air Temperature Sensor "B" Circuit Range/Performance |
| P0AB3 | Hybrid/EV Battery Pack Air Temperature Sensor "B" Circuit Low |
| P0AB4 | Hybrid/EV Battery Pack Air Temperature Sensor "B" Circuit High |
| P0AB5 | Hybrid/EV Battery Pack Air Temperature Sensor "B" Circuit Intermittent/Erratic |
| P0AC0 | Hybrid/EV Battery Pack Current Sensor Circuit |
| P0AC1 | Hybrid/EV Battery Pack Current Sensor Circuit Range/Performance |
| P0AC2 | Hybrid/EV Battery Pack Current Sensor Circuit Low |
| P0AC3 | Hybrid/EV Battery Pack Current Sensor Circuit High |
| P0AC4 | Hybrid/EV Battery Pack Current Sensor Circuit Intermittent/Erratic |
| P0AD9 | Hybrid/EV Battery Positive Contactor Control Circuit/Open |
| P0ADA | Hybrid/EV Battery Positive Contactor Control Circuit Range/Performance |
| P0ADB | Hybrid/EV Battery Positive Contactor Control Circuit Low |
| P0ADC | Hybrid/EV Battery Positive Contactor Control Circuit High |
| P0ADD | Hybrid/EV Battery Negative Contactor Control Circuit/Open |
| P0ADE | Hybrid/EV Battery Negative Contactor Control Circuit Range/Performance |
| P0ADF | Hybrid/EV Battery Negative Contactor Control Circuit Low |
| P0AE0 | Hybrid/EV Battery Negative Contactor Control Circuit High |
| P0AE1 | Hybrid/EV Battery Precharge Contactor Circuit |
| P0AE2 | Hybrid/EV Battery Precharge Contactor Circuit Stuck Closed |
| P0AE3 | Hybrid/EV Battery Precharge Contactor Circuit Stuck Open |
| P0AE4 | Hybrid/EV Battery Precharge Contactor Control Circuit/Open |
| P0AE5 | Hybrid/EV Battery Precharge Contactor Control Circuit Range/Performance |
| P0AE6 | Hybrid/EV Battery Precharge Contactor Control Circuit Low |
| P0AE7 | Hybrid/EV Battery Precharge Contactor Control Circuit High |
| P0AFA | Hybrid/EV Battery System Voltage |
| P0AFC | Hybrid/EV Battery Pack Sensor Module |
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