Drive Motor Inverter Temperature Sensor A Circuit Intermittent/Erratic

Where it lives

For P0AF1, the circuit described runs through the sensor. The description of P0AF1 reports a fault at the sensor.

Check these first

• A loose or corroded inverter sensor A connector
• Chafed wiring in the inverter sensor A circuit
• A sensor A failing when the inverter is hot
• Electrical interference on the sensor A signal

What to do next

1. Road test and watch inverter temperature sensor A data
2. Wiggle test the sensor A connector and wiring
3. Measure the sensor A resistance hot
4. Check the sensor A circuit for chafing
5. Replace sensor A if the signal drops
6. Clear the code and retest

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