Powertrain
Definition only
Lights the check engine lamp
P2AF5: Starter Relay C Stuck On
Standardized SAE J2012 code · P2Axx codes
What does P2AF5 mean?
Starter relay C reports a stuck on condition. Engine cranking can be inhibited or commanded unintentionally.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Relay contacts welded closed
- Medium Output driver stuck on
- Low Carbon or debris buildup preventing free movement
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2AF5 on the same make and model first.
P2AF5 in the community
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