P1456
Fuel Tank Temperature Sensor Circuit Malfunction
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine Light Is On
- Increased fuel consumption
- Problems starting the engine
- Unstable engine operation at idle
Causes
- Open or short circuit in the sensor circuit
- Fuel tank temperature sensor malfunction
- Wiring harness damage
- Problems with sensor connectors
- ECU malfunction
How to Fix
- Check the integrity of the sensor circuit
- Check the resistance of the fuel tank temperature sensor
- Inspect connectors and wiring harness for damage
- Replace the fuel tank temperature sensor if necessary
- Check and, if necessary, replace the computer