P0A2D
Drive Motor A Temperature Sensor Circuit High
Voltage at motor A temperature sensor above threshold, suggesting open circuit. The drive motor's position, current and temperature are watched continuously; a fault here downgrades the inverter to a safe operating point or triggers torque reduction.
- 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.
- Open sensor circuitCommon
- Connector pins corroded - high contact resistanceLess likely
- Supply wire pinched against B+ sourceLess likely
Parts involved
- Drive Motor A
- Motor Temperature Sensor
P0A2D 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.