Powertrain
generic / SAE
P0A21
Motor Torque Sensor Circuit Intermittent
The drive motor torque sensor reports a circuit intermittent fault. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 21
Possible causes
- Connector not seated high
- Noisy ground reference medium
- Connector with intermittent contact under vibration low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 300–2000 €
- Estimated time: 2–7 h
- Component: motor torque sensor
- Component: wiring harness
- Component: hybrid control module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012