P26A9
Engine Coolant Bypass Valve A Position Sensor Stop/Minimum Stop Performance
P26A9 is an OBD-II diagnostic trouble code meaning: Engine Coolant Bypass Valve A Position Sensor Stop/Minimum Stop Performance. Common causes: faulty valve position sensor, open or short circuit in wiring. Estimated repair cost: $17–50.
Symptoms
- Unstable engine temperature
- Engine overheating
- Floating idle speed
- The overheat warning light comes on
- Reduced engine power
Causes
- Faulty valve position sensor
- Open or short circuit in wiring
- Mechanical failure of the bypass valve
- Problems with the engine control module
- Sensor contact corrosion
How to Fix
- Check the sensor wiring for opens and shorts
- Check the mechanical operation of the valve
- Replace position sensor if necessary
- Diagnose the engine control module
- Clean sensor contacts and connectors
Related codes
Error P26A9 by Vehicle Brand
FAQ
What does the P26A9 code mean?
P26A9 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Bypass Valve A Position Sensor Stop/Minimum Stop Performance
What causes a P26A9 error code?
The most common causes of P26A9 include: Faulty valve position sensor; Open or short circuit in wiring; Mechanical failure of the bypass valve; Problems with the engine control module.
How do I fix a P26A9 diagnostic trouble code?
To fix P26A9: Check the sensor wiring for opens and shorts. Check the mechanical operation of the valve. Replace position sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P26A9?
Limited driving only, diagnose soon
How much does it cost to fix P26A9?
The estimated repair cost for P26A9 is $17–50. Actual cost depends on your vehicle, location, and labor rates.
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