Fuel Cap Sensor/Switch Circuit
A general electrical fault on the fuel cap sensor/switch circuit — open or short.
Affected components
- Fuel cap sensor
- Sensor wiring
Common causes
- High likelihood: Signal wire open
- Medium likelihood: Cap switch failed
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.