P2DA6
Coolant Heater A Over Temperature
P2DA6 is an OBD-II diagnostic trouble code meaning: Coolant Heater A Over Temperature. Common causes: coolant heater malfunction, problems with the heater control module. Estimated repair cost: $56–167.
Symptoms
- Overheat warning on dashboard
- Reduced engine warm-up efficiency
- Loss of engine power
- Increased fuel consumption
- Hot air from the heating system even when the heater is turned off
Causes
- Coolant heater malfunction
- Problems with the heater control module
- Short circuit in the heater circuit
- Broken or damaged wiring
- Temperature sensor malfunction
How to Fix
- Check the integrity of the heater circuit
- Diagnose the heater control module
- Check the temperature sensor and its wiring
- Replace coolant heater if necessary
- Update the control module software if updates are available
Related codes
Error P2DA6 by Vehicle Brand
FAQ
What does the P2DA6 code mean?
P2DA6 is an OBD-II diagnostic trouble code that indicates: Coolant Heater A Over Temperature
What causes a P2DA6 error code?
The most common causes of P2DA6 include: Coolant heater malfunction; Problems with the heater control module; Short circuit in the heater circuit; Broken or damaged wiring.
How do I fix a P2DA6 diagnostic trouble code?
To fix P2DA6: Check the integrity of the heater circuit. Diagnose the heater control module. Check the temperature sensor and its wiring. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2DA6?
Yes, but get it checked soon
How much does it cost to fix P2DA6?
The estimated repair cost for P2DA6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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