Code result
P0A3D
Drive Motor B Inverter Over Temperature
High severity
What it means
The drive motor B inverter reports junction temperature above the protection threshold. Sustained high load or cooling failure.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Inverter cooling failure
highOne of the most commonly reported causes for this code — check this first.
Sustained high inverter load
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P0A3D freeNo credit card required