OBD
P2D4F
Hybrid/EV Battery Pack K Over Temperature
What it means
P2D4F means Hybrid/EV Battery Pack K Over Temperature.
Check these first
- Battery pack K running hot
- A failed pack K temperature sensor
- A low battery coolant level
- A heavy load or fast charging
- A failed battery cooling fan
What to do next
- Read battery pack K temperature on a scan tool
- Check the battery coolant level
- Test the pack K temperature sensor
- Inspect the battery cooling fan
- Reduce the load and recheck the cooling
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.