P237F — Exhaust Heat Exchanger Bypass Valve A Control Performance
Exhaust Heat Exchanger Bypass Valve A Control Performance: the component is electrically intact but its response does not match the command.
General code reference. Confirm the definition and diagnostic procedure for your vehicle's year, model and engine. A stored code alone does not identify a failed part.
Affected components
- Exhaust bypass valve a
- Exhaust bypass position sensor a
Possible causes to check
These are possible checks, not a ranked diagnosis. Follow the vehicle manufacturer's test procedure before replacing parts.
- Flap stuck due to soot or carbon deposits
- Actuator gearing worn or slipping
- Position sensor offset against actual flap angle
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
Sources
Check each reference's vehicle and model-year scope. General background links do not establish which fault is most likely on your vehicle.
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.