P0C45 – Hybrid Battery Pack Coolant Temperature Sensor Circuit High
| Code | Fault Location | Probable Cause |
|---|---|---|
| P0C45 | Hybrid Battery Pack Coolant Temperature Sensor Circuit High | - |
Reading P0C45 on your car
A basic adapter will show you P0C45, but not the ABS, airbag or transmission modules, and not the bidirectional tests that confirm which part has actually failed rather than which circuit reported it.
We recommend Torque Pro
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Indeed this was correct! The wiring to the temperature sensor on my 2019 Chevrolet bolt had been torn by deep snow off of the connector. The underbody shield had been damaged the prior season allowing the harness to get snagged. Total parts to fix by recrimping a new PIN around $25. The dealer would sell me a pigtail for around $75.