Powertrain
Definition only
Lights the check engine lamp
P2DF7: Coolant Pump E Overspeed/Air in System
Standardized SAE J2012 code · P2Dxx codes
What does P2DF7 mean?
Coolant pump E reports a overspeed/air in system condition. Coolant circulation through the affected loop cannot be commanded reliably.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Pump motor or driver fault
- Medium Wiring or connector fault
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2DF7 on the same make and model first.
P2DF7 in the community
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