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B1100
Systeem
Supplemental Restraint (Airbag)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

System Voltage Low — Airbag Module

Understand B1100, common causes, and the right TOPDON scanner to diagnose it.

SRS module detected low supply voltage — may disable airbags until voltage normal.

Veelvoorkomende symptomen

  • Airbag light after start
  • Multiple U-codes

Typische oorzaken

  • Weak 12V battery
  • Corroded terminals
  • Low voltage during crank

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 B1100 mean?
B1100 indicates system voltage low — airbag module. SRS module detected low supply voltage — may disable airbags until voltage normal.
Can I diagnose B1100 with a basic code reader?
B1100 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 B1100?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B1100?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.