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OBD-II Code

P0730 — Incorrect Gear Ratio

The TCM detects an incorrect overall gear ratio during transmission operation.

System Engine
Severity Critical
Safe to drive? Yes, with caution
Advanced scanner Yes

What does code P0730 mean?

The TCM detects an incorrect overall gear ratio during transmission operation.

Common symptoms

  • Harsh shifting
  • limp mode activation

Possible causes

  • Internal clutch slippage
  • torque converter clutch failure
  • faulty solenoids

Initial recommendation

Check transmission hydraulic pressure, solenoid operation and internal transmission condition.

Safety notice

This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine code P0730 with your vehicle's actual symptoms for more complete diagnostic guidance.

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