P25FB

Turbocharger/Supercharger Bypass Valve C Control Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Reduced engine power
Unstable turbocharging operation
Check Engine Light Illuminates
Dips during acceleration
Unusual noises from the turbine area

Causes

Turbocharger bypass valve malfunction
Problems with wiring or connectors
Control solenoid valve malfunction
Mechanical damage to vacuum hoses
Problems with the engine control unit

How to Fix

Check the condition of the bypass valve and its mechanics
Check the integrity of wiring and connectors
Check the operation of the control solenoid valve
Check vacuum hoses for damage
If necessary, replace faulty components

Related codes

P25FA P25FC P2563