P2D01
Motor Electronics Coolant Pump A Overspeed/Air in System
P2D01 is an OBD-II diagnostic trouble code meaning: Motor Electronics Coolant Pump A Overspeed/Air in System. Common causes: electrical coolant pump malfunction, air lock in the cooling system. Estimated repair cost: $56–167.
Symptoms
- Engine overheating
- Unstable engine temperature
- Turning on the overheat warning light
- Reduced engine performance
- Noisy water pump
Causes
- Electrical coolant pump malfunction
- Air lock in the cooling system
- Problems with wiring to the pump
- Pump control module malfunction
- Coolant leak
How to Fix
- Check the coolant level and add if necessary
- Remove air from the cooling system
- Check electrical connections of the pump
- Test pump performance
- Replace the faulty pump if necessary
Related codes
Error P2D01 by Vehicle Brand
FAQ
What does the P2D01 code mean?
P2D01 is an OBD-II diagnostic trouble code that indicates: Motor Electronics Coolant Pump A Overspeed/Air in System
What causes a P2D01 error code?
The most common causes of P2D01 include: Electrical coolant pump malfunction; Air lock in the cooling system; Problems with wiring to the pump; Pump control module malfunction.
How do I fix a P2D01 diagnostic trouble code?
To fix P2D01: Check the coolant level and add if necessary. Remove air from the cooling system. Check electrical connections of the pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2D01?
Do not drive — repair immediately
How much does it cost to fix P2D01?
The estimated repair cost for P2D01 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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