Fuel Temperature Sensor A Circuit High Input
The fuel temperature sensor A signal exceeds the maximum threshold. Likely shorted to voltage, open ground or sensor open-circuit.
Affected components
- Fuel temperature sensor a
- Sensor wiring
Common causes
- High likelihood: Signal wire shorted to voltage
- Medium likelihood: Sensor open-circuit
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
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.