P0730
Incorrect Gear Ratio
This code indicates incorrect gear ratio. It relates to the transmission and may affect performance, emissions, or drivability depending on the exact failure.
Incorrect Gear Ratio
Common causes
- medium
Low or degraded transmission fluid
Low fluid level or old fluid can cause shifting and pressure faults.
Typical part cost: $100-400
- medium
Faulty sensor or solenoid
Transmission sensors and solenoids commonly fail and set codes.
Typical part cost: $100-400
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P0730 mean?
P0730 means "Incorrect Gear Ratio". It is a generic OBD-II code that points to a fault in the transmission.
Can I keep driving with this code?
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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