P2B32
Fan 2 Stuck On
Cooling fan 2 stays in the activated state when commanded off. The relay or control driver is welded or stuck on.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Fan relay contacts welded closedCommon
- Output driver stuck onPossible
- Carbon or debris buildup preventing free movementLess likely
Parts involved
- Cooling Fan 2
- Fan Relay 2
- ECM
P2B32 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.