Hybrid/EV Battery Temperature Sensor D Circuit Intermittent/Erratic

Where it lives

For P0AEC, the sensor sits on the circuit this code reports. The description of P0AEC reports a fault at the sensor.

Check these first

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

What to do next

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

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