Szukaj
P0791
System
Powertrain (Transmission)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Intermediate Shaft Speed Sensor Circuit Malfunction

Understand P0791, common causes, and the right TOPDON scanner to diagnose it.

Intermediate shaft speed sensor circuit fault on multi-shaft automatics.

Typowe objawy

  • Harsh shifts
  • Trans limp
  • Incorrect ratio codes

Typowe przyczyny

  • Failed ISS sensor
  • Wiring in transmission
  • Internal tone ring damage

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 P0791 mean?
P0791 indicates intermediate shaft speed sensor circuit malfunction. Intermediate shaft speed sensor circuit fault on multi-shaft automatics.
Can I diagnose P0791 with a basic code reader?
P0791 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 P0791?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P0791?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.