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B2500
Systeem
Supplemental Restraint (Airbag)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Occupant Sensor Disabled or Unplugged

Understand B2500, common causes, and the right TOPDON scanner to diagnose it.

SRS module detects occupant sensor disabled — often connector under passenger seat unplugged.

Veelvoorkomende symptomen

  • Passenger airbag permanently off
  • Airbag warning

Typische oorzaken

  • OCS connector unplugged
  • Aftermarket seat heaters installed incorrectly
  • Seat swap without sensor

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 B2500 mean?
B2500 indicates occupant sensor disabled or unplugged. SRS module detects occupant sensor disabled — often connector under passenger seat unplugged.
Can I diagnose B2500 with a basic code reader?
B2500 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 B2500?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B2500?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.