P26BD
Engine Coolant Bypass Valve D Control Circuit/Open
P26BD is an OBD-II diagnostic trouble code meaning: Engine Coolant Bypass Valve D Control Circuit/Open. Common causes: open or short circuit in valve control circuit, coolant bypass valve malfunction. Estimated repair cost: $28–89.
Symptoms
- Engine overheating
- Insufficient engine warm-up
- Unstable engine operation
- Check Engine Light Is On
- Loss of engine power
Causes
- Open or short circuit in valve control circuit
- Coolant bypass valve malfunction
- Problems with the relay or circuit fuse
- Engine control unit malfunction
- Corrosion or poor contact in connectors
How to Fix
- Check the integrity of the wiring and connectors of the control circuit
- Check the resistance and operation of the bypass valve
- Check voltage at valve connectors
- If necessary, replace the bypass valve
- Scan the control unit for additional errors
Related codes
Error P26BD by Vehicle Brand
FAQ
What does the P26BD code mean?
P26BD is an OBD-II diagnostic trouble code that indicates: Engine Coolant Bypass Valve D Control Circuit/Open
What causes a P26BD error code?
The most common causes of P26BD include: Open or short circuit in valve control circuit; Coolant bypass valve malfunction; Problems with the relay or circuit fuse; Engine control unit malfunction.
How do I fix a P26BD diagnostic trouble code?
To fix P26BD: Check the integrity of the wiring and connectors of the control circuit. Check the resistance and operation of the bypass valve. Check voltage at valve connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P26BD?
Limited driving only, diagnose soon
How much does it cost to fix P26BD?
The estimated repair cost for P26BD is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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