Zoeken
P0791
Systeem
Powertrain (Transmission)
Scanner vereist
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.

Veelvoorkomende symptomen

  • Harsh shifts
  • Trans limp
  • Incorrect ratio codes

Typische oorzaken

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

Welke scanner heb je nodig?

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

Gebruik live data en freeze frame voordat je onderdelen vervangt. ABS-, SRS- en U-codes vereisen meestal een full-system scanner.

Diagnosetips

  • Leg freeze frame vast wanneer de code voor het eerst verschijnt
  • Wis de code pas na het oplossen van de oorzaak
  • Controleer op gerelateerde pending codes
  • Controleer of accuspanning boven 12,4 V is voordat je sensoren suspecteert

Aanbevolen TOPDON scanners

Veelgestelde vragen

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.