Side Impact Sensor(SIS) is located in both side of center pillar detects broad collision.
When SIS delivers collision signal to SRSCM, SRSCM checks if safing sensor located in SRSCM detects collusion.
and if both SIS and safing sensor detects collision simultaneously, SRSCM operates side air bag.
The SRSCM sets DTC B1400 if there is any fault in DSIS circuit.
Item
Detecting Condition
Possible cause
DTC Strategy
Check current(PWM type)
Faulty DSIS circuit.
Faulty DSIS.
Faulty SRSCM.
Enable Conditions
Ignition "ON"
Threshold Value
Driver SIS Faulty
Diagnostic Time
Qualification
-
De-Qualification