P2DAD
Drive Motor A Temperature Sensor B Circuit Range/Performance
The ECM detects a range/performance fault on the drive motor a temperature sensor b circuit. Reading cannot be used reliably for control.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
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 characteristic driftedCommon
- Sensor mounting displacedPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Drive Motor A Temp Sensor B
- Wiring Harness
- Hybrid Control Module
P2DAD 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.