OBD-II code · Powertrain (generic)
P0A3C Drive Motor A Inverter Performance
The inverter for drive motor A does not produce expected output torque or commutation timing within tolerance, indicating IGBT or gate driver issue.
Is it safe to drive with P0A3C?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyIGBT degradation
- PossibleGate driver fault
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Repair at a glance
- Difficulty
- Shop_only
- DIY friendly
- Best left to a mechanic
- Typical labour
- 4–16 h
- Emissions test
- Usually unaffected
- Parts involved
- Inverter, Drive Motor A, Igbt Module
Related codes
- P0A78Drive Motor A Inverter Performance
- P0A79Drive Motor B Inverter Performance
- P0A39Generator Temperature Sensor Circuit High
- P0A3AGenerator Temperature Sensor Circuit Intermittent
- P0A3BGenerator A Over Temperature
- P0A3DDrive Motor B Inverter Over Temperature
- P0A3EGenerator Inverter Over Temperature
- P0A3FDrive Motor A Position Sensor Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.