Powertrain
generic / SAE
P0A3D
Drive Motor B Inverter Over Temperature
The drive motor B inverter reports junction temperature above the protection threshold. Sustained high load or cooling failure.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 3D
Possible causes
- Inverter cooling failure high
- Sustained high inverter load medium
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 800–5000 €
- Estimated time: 3–14 h
- Component: drive motor b inverter
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012