P00C0

Turbocharger/Supercharger Bypass Valve B Control Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$111–333 (est.)

Symptoms

Reduced engine power
Unstable idling
Excessive smoke from exhaust pipe
Dips during acceleration

Causes

Open or short circuit in control circuit
Bypass valve malfunction
ECU problems
Valve dirty or stuck
Poor contact in the connector

How to Fix

Check the integrity of the wiring and connectors of the control circuit
Check the operation of the bypass valve (functionality of the solenoid, mechanical mobility)
Check power and ground circuit
Test the ECU for control errors
Replace or repair the bypass valve if necessary
Cleaning the valve from carbon deposits and dirt

Related codes

P00C1 P00C2 P0235 P0299