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B2500
System
Supplemental Restraint (Airbag)
Benötigter Scanner
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.

Häufige Symptome

  • Passenger airbag permanently off
  • Airbag warning

Typische Ursachen

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

Welchen Scanner brauchen Sie?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Nutzen Sie Live-Daten und Freeze Frame, bevor Sie Teile tauschen. ABS-, SRS- und U-Codes erfordern meist einen Vollsystem-Scanner.

Diagnose-Tipps

  • Freeze Frame erfassen, wenn der Code erstmals gesetzt wird
  • Code erst nach Behebung der Ursache löschen
  • Auf verwandte pending codes prüfen
  • Batteriespannung über 12,4 V prüfen, bevor Sie Sensoren verdächtigen

Empfohlene TOPDON Scanner

Häufig gestellte Fragen

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.