P2D8A
Fan 2 Control Module Over Temperature
The fan 2 control module reports temperature above the protection threshold. Sustained operation, high ambient, or cooling path obstruction.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Under-bonnet temperature too highCommon
- Sustained fan operationPossible
Parts involved
- Fan Control Module 2
- Wiring Harness
- ECM
P2D8A is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.