P26D4
Engine Coolant Pump Supply Voltage Circuit Low
P26D4 is an OBD-II diagnostic trouble code meaning: Engine Coolant Pump Supply Voltage Circuit Low. Common causes: coolant pump malfunction, damage to wiring or connectors. Estimated repair cost: $33–111.
Symptoms
- Engine overheating
- Unstable engine operation
- Check Engine Light Illuminates
- Reduced engine power
- Noises from the coolant pump
Causes
- Coolant pump malfunction
- Damage to wiring or connectors
- Faulty relay or fuse
- Problems with the ECU
- Short circuit in the circuit
How to Fix
- Check the voltage at the coolant pump
- Inspect wiring and connectors for damage
- Check relays and fuses
- Replace the coolant pump if necessary
- Check the operation of the computer
Related codes
Error P26D4 by Vehicle Brand
FAQ
What does the P26D4 code mean?
P26D4 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Pump Supply Voltage Circuit Low
What causes a P26D4 error code?
The most common causes of P26D4 include: Coolant pump malfunction; Damage to wiring or connectors; Faulty relay or fuse; Problems with the ECU.
How do I fix a P26D4 diagnostic trouble code?
To fix P26D4: Check the voltage at the coolant pump. Inspect wiring and connectors for damage. Check relays and fuses. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P26D4?
Limited driving only, diagnose soon
How much does it cost to fix P26D4?
The estimated repair cost for P26D4 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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