P2C23

Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Extended engine warm-up time
Unstable operation at idle
Reduced engine power
Check Engine Light Illuminates
Increased fuel consumption

Causes

Valve position sensor malfunction
Mechanical sticking of the bypass valve
Open or short circuit in the sensor circuit
Connector problems or contact corrosion
Engine control unit malfunction

How to Fix

Check the mechanical operation of the valve
Check the resistance and signal of the position sensor
Inspect the electrical circuit and connectors
Clean or replace sticking valve
If necessary, replace the position sensor

Related codes

P2C24 P2C22 P2C25