P00C1

Turbocharger/Supercharger Bypass Valve B Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Unstable operation of the turbocharger
Check Engine light comes on
Dips during acceleration

Causes

Open or short circuit in wiring harness
Bypass valve solenoid malfunction
Mechanical damage to the valve
Control circuit power problems
Engine control unit (ECU) malfunction

How to Fix

Check the integrity of the wiring harness
Check bypass valve solenoid resistance
Check the mechanical condition of the valve
Check control circuit power supply
If necessary, replace faulty components

Related codes

P00C0 P00C2 P0299