Powertrain
Definition only
Lights the check engine lamp
P2DA7: Coolant Heater A Control Module System Voltage
Standardized SAE J2012 code · P2Dxx codes
What does P2DA7 mean?
The system voltage feedback of the coolant heater A control module is outside the expected window.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High System voltage drifted
- Medium Feedback wire fault
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2DA7 on the same make and model first.
P2DA7 in the community
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