Exhaust Gas Recirculation Sensor "B" Circuit High
Exhaust Gas Recirculation Sensor "B" Circuit High: the signal voltage is above the expected range. Without valid EGR feedback the ECU disables exhaust gas recirculation and may set further EGR codes.
Affected components
- Egr position sensor
- Egr sensor wiring
Common causes
- High likelihood: Sensor circuit shorted to supply
- Medium likelihood: EGR position sensor B failed
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
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.