P0730
Sistema
Powertrain (Transmission)
Escáner necesario
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Incorrect Gear Ratio

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

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

Síntomas habituales

  • Slipping
  • Flare between gears
  • Transmission overheating smell

Causas típicas

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

¿Qué escáner necesita?

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

Use datos en vivo y freeze frame antes de cambiar piezas. Códigos ABS, SRS y U suelen requerir un escáner de todos los sistemas.

Consejos de diagnóstico

  • Registre el freeze frame cuando se active el código
  • Borre el código solo tras corregir la causa
  • Revise códigos pendientes relacionados
  • Verifique que la batería esté por encima de 12,4 V antes de sospechar sensores

Escáneres FOXWELL recomendados

Preguntas frecuentes

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.
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.