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P0730
System
Powertrain (Transmission)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Incorrect Gear Ratio

Understand P0730, common causes, and the right TOPDON scanner to diagnose it.

TCM commanded a gear but actual ratio does not match — slipping clutch packs, low fluid, or failed solenoid.

Typowe objawy

  • Slipping
  • Flare between gears
  • Transmission overheating smell

Typowe przyczyny

  • Low ATF level
  • Worn clutch packs
  • Failed solenoid
  • Valve body wear

Jakiego skanera potrzebujesz?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Użyj danych na żywo i freeze frame przed wymianą części. Kody ABS, SRS i U zwykle wymagają skanera full-system.

Wskazówki diagnostyczne

  • Zapisz freeze frame, gdy pojawi się kod
  • Kasuj kod dopiero po usunięciu przyczyny
  • Sprawdź powiązane kody pending
  • Sprawdź, czy napięcie akumulatora jest powyżej 12,4 V przed podejrzeniem czujników

Polecane skanery TOPDON

Często zadawane pytania

What does P0730 mean?
P0730 indicates incorrect gear ratio. TCM commanded a gear but actual ratio does not match — slipping clutch packs, low fluid, or failed solenoid.
Can I diagnose P0730 with a basic code reader?
P0730 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for P0730?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P0730?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.