Sök
B2500
System
Supplemental Restraint (Airbag)
Scanner som krävs
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.

Vanliga symptom

  • Passenger airbag permanently off
  • Airbag warning

Typiska orsaker

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

Vilken scanner behöver du?

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

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade TOPDON-scannrar

Vanliga frågor

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.