P07F6
Gear 9 Incorrect Ratio
Generic OBD-II
Common symptoms
What you'll notice
- Check the transmission fluid level and condition
- Inspect and potentially replace the transmission speed sensors
- Check and potentially replace the transmission solenoids
- Perform a transmission flush and refill with fresh fluid
- Inspect and potentially replace the transmission control module
Common causes
Most likely first
- Worn or damaged gear synchronizers
- Faulty gear ratio sensor
- Low or contaminated transmission fluid
- Misaligned or damaged transmission gears
- Malfunctioning clutch or clutch linkage
How to diagnose & fix
Work through it in order
- Slipping or jerking when shifting gears
- Difficulty shifting gears or finding the correct gear
- Delayed engagement or disengagement of gears
- Harsh or abrupt shifting
- Increased fuel consumption
Read & clear P07F6 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.