P0730
Incorrect Gear Ratio
P0730 is an OBD-II diagnostic trouble code meaning: Incorrect Gear Ratio. Common causes: low transmission fluid level, friction disc wear. Estimated repair cost: $22–167.
Symptoms
- Erratic gear shifting
- Switching delays
- Gear slip
- Increased fuel consumption
- Check Engine light comes on
Causes
- Low transmission fluid level
- Friction disc wear
- Shift solenoids malfunction
- Problems with the hydraulic block
- Malfunction of speed sensors
How to Fix
- Check the level and condition of the transmission fluid
- Carry out diagnostics of switching solenoids
- Check the condition of friction discs and other mechanical components
- Diagnose speed sensors and their wiring
- Replace damaged components if necessary
Related codes
Error P0730 by Vehicle Brand
FAQ
What does the P0730 code mean?
P0730 is an OBD-II diagnostic trouble code that indicates: Incorrect Gear Ratio
What causes a P0730 error code?
The most common causes of P0730 include: Low transmission fluid level; Friction disc wear; Shift solenoids malfunction; Problems with the hydraulic block.
How do I fix a P0730 diagnostic trouble code?
To fix P0730: Check the level and condition of the transmission fluid. Carry out diagnostics of switching solenoids. Check the condition of friction discs and other mechanical components. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0730?
Limited driving only, diagnose soon
How much does it cost to fix P0730?
The estimated repair cost for P0730 is $22–167. Actual cost depends on your vehicle, location, and labor rates.
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