Zoeken
B0102
Systeem
Supplemental Restraint (Airbag)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Impact Sensor Circuit Malfunction

Understand B0102, common causes, and the right TOPDON scanner to diagnose it.

Front or side impact sensor circuit fault — second impact sensor ID on some networks.

Veelvoorkomende symptomen

  • Airbag light on
  • Sensor may need replacement after crash

Typische oorzaken

  • Failed impact sensor
  • Wiring after front-end repair
  • Sensor mounting loose

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 B0102 mean?
B0102 indicates impact sensor circuit malfunction. Front or side impact sensor circuit fault — second impact sensor ID on some networks.
Can I diagnose B0102 with a basic code reader?
B0102 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 B0102?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B0102?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.