Hybrid/EV Battery Temperature Sensor C Circuit

Where it lives

For P0ACA, the sensor sits on the circuit this code reports. The description of P0ACA reports a fault at the sensor.

Check these first

• A failed battery temperature sensor C
• Wiring or connection problems in the sensor C circuit
• Corrosion or water damage at the sensor C
• A sensor C installed incorrectly

What to do next

1. Read battery temperature sensor C data on a scan tool
2. Inspect the sensor C and wiring for corrosion
3. Check for water damage in the sensor C circuit
4. Verify the sensor C installation
5. Replace the sensor if the signal is off spec
6. Clear the code and retest

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