Exhaust Pressure Control Valve B Position Sensor Circuit Range or Performance
Same as P04A6 with the signal in plausible range but not matching the actual valve angle.
Affected components
- Exhaust pressure position sensor b
Common causes
- High likelihood: Sensor element drifted or offset
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Sources
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.