Hybrid/EV Battery Pack B Cell Thickness Sensor Circuit Performance

Where it lives

For P2E73, the description names the sensor as the part involved.

Check these first

• A failed cell thickness sensor in hybrid battery pack B
• A loose or corroded sensor connector on pack B
• A chafed sensor wire in the pack B harness
• Water or coolant intrusion at the pack B sensor
• An out-of-range reading caused by pack B module calibration

What to do next

1. Read the pack B cell thickness sensor data on a scan tool
2. Inspect the pack B sensor connector and harness
3. Test the pack B sensor circuit for open and short faults
4. Check for coolant or water at the pack B sensor
5. Replace the pack B cell thickness sensor if the circuit tests good
6. Clear the code and retest

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