General Information

Airbag(Event #1)
B149300 OCS(Occupant Classification System) Communication error - General Information

Component Location





General Description

SRSCM receives passenger occupant detection signal which includes passenger weight class from WCS.
SRSCM controls Telltail lamp and passenger airbag whether deploy it or not according to passenger weight class.
SRSCM periodically receives passenger occupant information. If SRSCM receives communication error or Fault information, SRSCM turns on Airbag warning light and sets DTC.

DTC Description

The SRSCM sets DTC B149300 if there is any error in communication between Weight Classification System ECU and SRSCM.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) CAN Low/High Signal Waveform