P26D3
Engine Coolant Pump Supply Voltage Circuit
P26D3 is an OBD-II diagnostic trouble code meaning: Engine Coolant Pump Supply Voltage Circuit. Common causes: open or short circuit in the pump power supply circuit, coolant pump relay malfunction. Estimated repair cost: $33–167.
Symptoms
- Engine overheating
- Unstable operation of the cooling system
- Check Engine Light Is On
- Reduced engine performance
- Coolant pump noise
Causes
- Open or short circuit in the pump power supply circuit
- Coolant pump relay malfunction
- Blown fuse
- Problems with the engine ECU
- Malfunction of the coolant pump itself
How to Fix
- Check fuses and replace if necessary
- Check coolant pump relay
- Diagnose wiring integrity
- Check the functionality of the coolant pump
- If necessary, replace the coolant pump
Related codes
Error P26D3 by Vehicle Brand
FAQ
What does the P26D3 code mean?
P26D3 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Pump Supply Voltage Circuit
What causes a P26D3 error code?
The most common causes of P26D3 include: Open or short circuit in the pump power supply circuit; Coolant pump relay malfunction; Blown fuse; Problems with the engine ECU.
How do I fix a P26D3 diagnostic trouble code?
To fix P26D3: Check fuses and replace if necessary. Check coolant pump relay. Diagnose wiring integrity. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P26D3?
Limited driving only, diagnose soon
How much does it cost to fix P26D3?
The estimated repair cost for P26D3 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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