P00C3

Turbocharger/Supercharger Bypass Valve B Control Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Rough engine operation
Increased fuel consumption
Check Engine Light Illuminates
Dips during acceleration

Causes

Faulty turbocharger bypass valve
Open or short circuit in wiring harness
Poor contact in control circuit connectors
Control solenoid malfunction
ECU software error

How to Fix

Check the serviceability of the bypass valve (resistance, mechanical stroke)
Inspect the wiring harness and connectors for damage.
Check power supply and control signal to the valve
Test the operation of the control solenoid
If necessary, replace faulty components
Reset the error and check for reappearance

Related codes

P00C2 P00C4 P0299 P2263