P07F1
Input/Turbine Shaft Speed Sensor C Circuit
Generic OBD-II
Common symptoms
What you'll notice
- Check the wiring and connectors of the Input/Turbine Shaft Speed Sensor.
- Clean or replace the Input/Turbine Shaft Speed Sensor.
- Check and replace the transmission fluid if necessary.
- Inspect and repair or replace the transmission control module.
Common causes
Most likely first
- Faulty turbine shaft speed sensor
- Wiring issue or loose connection related to the sensor
- Problem with the sensor circuit, such as a short or open circuit
- ECM (engine control module) or PCM (powertrain control module) malfunction
- Mechanical issue with the transmission itself, such as a faulty bearing or gear
How to diagnose & fix
Work through it in order
- Check engine light illuminates
- Vehicle may experience a decrease in power or acceleration
- Transmission may shift erratically or have difficulty shifting gears
- Engine may stall or have difficulty starting
- Vehicle may experience harsh or delayed shifts
Read & clear P07F1 yourself
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