P07CF
Transmission Mode Switch D Circuit Low
Generic OBD-II
Common symptoms
What you'll notice
- Inspect and replace the Transmission Mode Switch D sensor, if faulty.
- Check the wiring and connectors related to the Transmission Mode Switch D circuit, repair or replace as necessary.
- Reset the error code using a diagnostic tool, and monitor for recurring issues.
- Inspect the transmission fluid level and condition, and perform a flush and refill if required.
- Consult the vehicle's service manual or contact the manufacturer for further guidance and potential software updates related to the Transmission Mode Switch D circuit.
Common causes
Most likely first
- Faulty transmission mode switch
- Poor electrical connection to the transmission mode switch
- Faulty wiring or harness in the circuit of transmission mode switch
- Malfunctioning transmission control module
- Low battery voltage or discharged battery
How to diagnose & fix
Work through it in order
- Difficulty shifting gears
- Erratic or harsh shifting
- Vehicle stalling
- Inability to engage or disengage the transmission
- Illuminated "Check Engine" light
Read & clear P07CF yourself
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