Szukaj
B1020
System
Supplemental Restraint (Airbag)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Passenger Airbag Loop Circuit Failure

Understand B1020, common causes, and the right TOPDON scanner to diagnose it.

Passenger airbag squib circuit open or high resistance.

Typowe objawy

  • SRS light on
  • Passenger airbag disabled indicator

Typowe przyczyny

  • Passenger bag connector
  • Occupancy sensor bypass for aftermarket seats
  • Module fault

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 B1020 mean?
B1020 indicates passenger airbag loop circuit failure. Passenger airbag squib circuit open or high resistance.
Can I diagnose B1020 with a basic code reader?
B1020 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 B1020?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B1020?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.