Front Impact Sensor(FIS)located at both sides of the front of engine room detects head-on collision.
When FIS delivers collision signal to SRSCM, SRSCM checks if safing sensor located in SRSCM detects collusion.
and if both FIS and safing sensor detects collision simultaneously, SRSCM operates front air bag.
The SRSCM sets DTC B133000 if DFIS with wrong ID is detected
Item
Detecting Condition
Possible cause
DTC Strategy
Check Data
Faulty DFIS with wrong ID.
Faulty SRSCM.
Enable Conditions
Ignition "ON"
Threshold Value
FIS-Driver send wrong ID
Diagnostic Time
Qualification
More than 1 sec
De-Qualification
More than 2 sec