P2D03
Motor Electronics Coolant Pump A Supply Voltage Circuit
P2D03 is an OBD-II diagnostic trouble code meaning: Motor Electronics Coolant Pump A Supply Voltage Circuit. Common causes: open or short circuit in the pump power supply circuit, cooling pump malfunction. Estimated repair cost: $33–167.
Symptoms
- Engine overheating
- Reduced engine power
- Check Engine Light Is On
- Unstable engine operation
- Cooling pump noise
Causes
- Open or short circuit in the pump power supply circuit
- Cooling pump malfunction
- Relay or fuse problems
- Wiring harness damage
- Engine control unit malfunction
How to Fix
- Check coolant pump fuses and relays
- Diagnose the pump power circuit for opens and short circuits
- Check the functionality of the cooling pump
- Inspect the wiring harness for damage
- If necessary, replace the cooling pump
Related codes
Error P2D03 by Vehicle Brand
FAQ
What does the P2D03 code mean?
P2D03 is an OBD-II diagnostic trouble code that indicates: Motor Electronics Coolant Pump A Supply Voltage Circuit
What causes a P2D03 error code?
The most common causes of P2D03 include: Open or short circuit in the pump power supply circuit; Cooling pump malfunction; Relay or fuse problems; Wiring harness damage.
How do I fix a P2D03 diagnostic trouble code?
To fix P2D03: Check coolant pump fuses and relays. Diagnose the pump power circuit for opens and short circuits. Check the functionality of the cooling pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2D03?
Limited driving only, diagnose soon
How much does it cost to fix P2D03?
The estimated repair cost for P2D03 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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