Hybrid/EV Battery Temperature Sensor B Circuit

Where it lives

For P0AC5, the sensor sits on the circuit this code reports. The description of P0AC5 reports a fault at the sensor.

Check these first

• An open or short in the sensor B wiring harness
• Corrosion or damage at the temperature sensor B connector
• A sensor B installed incorrectly
• A failed battery control module

What to do next

1. Read battery temperature sensor B data on a scan tool
2. Inspect the sensor B wiring harness and connector
3. Verify the sensor B installation
4. Check the battery control module
5. Replace the sensor if the signal is off spec
6. Clear the code and retest

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