P25FA
Turbocharger/Supercharger Bypass Valve C Control Circuit High
P25FA is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Bypass Valve C Control Circuit High. Common causes: control circuit short circuit to positive, bypass valve b fault. Estimated repair cost: $28–167.
Symptoms
- Reduced engine power
- Check Engine Light Illuminates
- Dips during acceleration
- Engine transition to emergency mode
Causes
- Control circuit short circuit to positive
- Bypass valve B fault
- Wiring harness damage
- Problems with connectors
- Engine control unit malfunction
How to Fix
- Check the integrity of the wiring harness
- Check resistance of bypass valve B
- Check control circuit voltage
- Replace bypass valve if necessary
- Check/replace control unit if necessary
Related codes
Error P25FA by Vehicle Brand
FAQ
What does the P25FA code mean?
P25FA is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Bypass Valve C Control Circuit High
What causes a P25FA error code?
The most common causes of P25FA include: Control circuit short circuit to positive; Bypass valve B fault; Wiring harness damage; Problems with connectors.
How do I fix a P25FA diagnostic trouble code?
To fix P25FA: Check the integrity of the wiring harness. Check resistance of bypass valve B. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P25FA?
Limited driving only, diagnose soon
How much does it cost to fix P25FA?
The estimated repair cost for P25FA is $28–167. Actual cost depends on your vehicle, location, and labor rates.
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