P0A2B
Drive Motor A Temperature Sensor Range/Performance
The drive motor A temperature sensor signal is implausible relative to inverter losses and operating point.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: shop_only
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Common causes
Ordered by how often each turns out to be the cause.
- Sensor driftCommon
- Sensor element aged beyond calibration windowLess likely
- Sensor mounting loose - signal dampingLess likely
Parts involved
- Drive Motor A
- Motor Temperature Sensor
P0A2B is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.