P26BB
Engine Coolant Bypass Valve C Range/Performance
P26BB is an OBD-II diagnostic trouble code meaning: Engine Coolant Bypass Valve C Range/Performance. Common causes: coolant bypass valve malfunction, valve electrical circuit problems. Estimated repair cost: $17–56.
Symptoms
- Engine overheating
- The engine takes a long time to warm up
- Unstable engine operation
- Increased fuel consumption
- Check Engine light comes on
Causes
- Coolant bypass valve malfunction
- Valve electrical circuit problems
- Valve is dirty or clogged
- Engine control unit (ECU) malfunction
- Mechanical damage to the valve or its actuator
How to Fix
- Check the electrical circuit of the valve for breaks and short circuits
- Check valve resistance and operation
- Clean or replace coolant bypass valve
- Check and, if necessary, update ECU software
- Check the cooling system for leaks and proper operation
Related codes
Error P26BB by Vehicle Brand
FAQ
What does the P26BB code mean?
P26BB is an OBD-II diagnostic trouble code that indicates: Engine Coolant Bypass Valve C Range/Performance
What causes a P26BB error code?
The most common causes of P26BB include: Coolant bypass valve malfunction; Valve electrical circuit problems; Valve is dirty or clogged; Engine control unit (ECU) malfunction.
How do I fix a P26BB diagnostic trouble code?
To fix P26BB: Check the electrical circuit of the valve for breaks and short circuits. Check valve resistance and operation. Clean or replace coolant bypass valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P26BB?
Limited driving only, diagnose soon
How much does it cost to fix P26BB?
The estimated repair cost for P26BB is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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