Motor Torque Sensor Circuit Intermittent

Where it lives

For P0A21, the circuit described runs through the sensor. The description of P0A21 reports a fault at the sensor.

Check these first

• An intermittent open or short in the motor torque sensor circuit
• A failing motor torque sensor
• A loose motor torque sensor connector
• Electrical interference on the sensor circuit
• A fault in the hybrid control module

What to do next

1. Wiggle test the motor torque sensor harness
2. Inspect the sensor connector
3. Read motor torque sensor live data
4. Check the sensor calibration
5. Replace the motor torque sensor if the signal is erratic
6. Clear the code and retest

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