Hybrid/EV Battery Temperature Sensor P Circuit High

Where it lives

For P0CBA, the circuit described runs through the sensor. The description of P0CBA reports a fault at the sensor.

Check these first

• An open in the sensor P signal or return
• A short to voltage on the sensor P wire
• A disconnected sensor P connector
• High resistance at the sensor P ground
• High pack voltage raising the sensor P reading

What to do next

1. Read hybrid battery temperature sensor P on a scan tool
2. Inspect the sensor P connector and wiring
3. Test the sensor P circuit for an open and a short to voltage
4. Measure the sensor P ground resistance
5. Replace sensor P if the reading stays high
6. Clear the code and retest

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