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P0730: Incorrect Gear Ratio
Severity: High Stop or minimize driving and get it looked at right away.
What does P0730 mean?
The transmission's input and output speeds do not match the expected ratio for the selected gear, which can mean slipping.
Generic OBD-II definition: Incorrect Gear Ratio. Confirm applicability in your vehicle service information.
Common causes
- Low or burnt transmission fluid
- Faulty shift solenoid
- Internal clutch wear
Symptoms
- Slipping
- Delayed engagement
- Limp mode
Can I keep driving with P0730?
Severity: High Stop or minimize driving and get it looked at right away.
If the check engine light is flashing or the car runs badly, stop driving and have it checked.
Typical fixes
- Check fluid level and condition
- Scan for solenoid codes
- Have the transmission diagnosed