Useful checks before replacing parts
- Compare sensor A temperature with other pack sensors, intake air temperature, cooling fan command, pack current, freeze-frame data, and overtemperature codes.
- Inspect for open sensor circuits, short-to-voltage faults, poor grounds, connector corrosion, water intrusion, airflow restrictions, and real pack overheating.
- Measure signal and ground voltage to determine whether the high reading is electrical or a real thermal event.
Related OBD-II codes
These nearby hybrid / ev entries can help compare wording and fault area. They may share the same verification status as the source database.