P25B6
Turbocharger/Supercharger Wastegate B Stuck Closed
P25B6 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Wastegate B Stuck Closed. Common causes: mechanical jamming of the bypass valve, valve actuator malfunction. Estimated repair cost: $56–278.
Symptoms
- Reduced engine power
- Turbocharger overheating
- Engine knock
- Excessive turbine noise
- Check engine light comes on
Causes
- Mechanical jamming of the bypass valve
- Valve actuator malfunction
- Problems with the vacuum drive (if any)
- Open or short circuit in control circuit
- Control unit software error
How to Fix
- Check the mechanical movement of the valve
- Diagnose the operation of the valve actuator
- Check the integrity of the control circuit and connectors
- Clean or replace a stuck valve
- If necessary, replace the turbocharger assembly
Related codes
Error P25B6 by Vehicle Brand
FAQ
What does the P25B6 code mean?
P25B6 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Wastegate B Stuck Closed
What causes a P25B6 error code?
The most common causes of P25B6 include: Mechanical jamming of the bypass valve; Valve actuator malfunction; Problems with the vacuum drive (if any); Open or short circuit in control circuit.
How do I fix a P25B6 diagnostic trouble code?
To fix P25B6: Check the mechanical movement of the valve. Diagnose the operation of the valve actuator. Check the integrity of the control circuit and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P25B6?
Do not drive — repair immediately
How much does it cost to fix P25B6?
The estimated repair cost for P25B6 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat