Zoeken
B1020
Systeem
Supplemental Restraint (Airbag)
Scanner vereist
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.

Veelvoorkomende symptomen

  • SRS light on
  • Passenger airbag disabled indicator

Typische oorzaken

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

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 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.