P0730 – Incorrect Gear Ratio
Description
The transmission gear ratio does not match expected values.
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Compare Diagnostic ScannersSymptoms
- Harsh shifting
- Poor acceleration
- Slipping
- Limp mode
- Check engine light
Causes
- Low transmission fluid
- Worn clutches
- Faulty solenoid
- TCM issue
- ECU issue
Diagnosis
- Check fluid level
- Inspect solenoids
- Scan live data
- Inspect clutches
- Inspect TCM
Repair
- Refill fluid
- Replace solenoids
- Repair clutches
- Replace TCM
- Update ECU