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.
The SRSCM sets DTC B149000 if there is any fault in Weight Classification System Sensor circuit.
Item
Detecting Condition
Possible cause
DTC Strategy
WCS sensor failure
Poor connection of connected part.
Faulty WCS.
WCS Reset isn't performed
Faulty SRSCM.
Enable Conditions
Ignition "ON"
Threshold Value
Driver FIS Faulty
Diagnostic Time
Qualification
More than 2s (1s x 2)
De-Qualification