P01AC
Alternative Fuel Tank Temperature Sensor Circuit Low
Generic OBD-II
Common symptoms
What you'll notice
- Check the wiring and connections of the alternative fuel tank temperature sensor
- Inspect the alternative fuel tank temperature sensor for any damage or malfunction
- Test the resistance of the alternative fuel tank temperature sensor using a multimeter
- Replace the alternative fuel tank temperature sensor if it fails the resistance test
- Verify the integrity of the alternative fuel tank temperature sensor circuit by checking for any shorts or open circuits
Common causes
Most likely first
- Faulty or malfunctioning alternative fuel tank temperature sensor
- Wiring or connection issue in the alternative fuel tank temperature sensor circuit
- Low fuel level in the alternative fuel tank
- Incorrect fuel blend or fuel quality in the alternative fuel tank
- Faulty or malfunctioning engine control module (ECM) or powertrain control module (PCM)
How to diagnose & fix
Work through it in order
- Engine misfires or rough running
- Decreased fuel efficiency
- Difficulty starting the vehicle
- Check Engine Light illuminates
- Impaired acceleration or power loss
Read & clear P01AC yourself
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