SRSCM (Supplemental Restraints System Control Module) checks input voltage when "IG ON" to make air bag system work properly.
If input voltage is out of normal range, there can be malfunction in system operation. In this case, Check battery and charging system.
If you strike or spin the SRSCM at the IG “ON” state, the seat-belt pretensioner, curtain-airbag or side-airbag could be unfolded and bring on danger. Handle it with care.
The SRSCM sets DTC B1102 and turns warning light on if voltage below threshold value is detected for more than 4 sec.
(If voltage within threshold value is detected When the SRSCM returns to normal condition. SRSCM regards DTC as being cleared and turns warning light off).
Item
Detecting Condition
Possible cause
DTC Strategy
Check voltage
Poor connection of connected part.
Open/Short circuit in power harness.
Open/Short circuit in ground harness.
Faulty charging system.
Faulty SRSCM.
Enable Conditions
Ignition "ON"
Threshold Value
Vbatt = 7.3
Diagnostic Time
Qualification
More than 4 sec
De-Qualification
Test Condition
Voltage
Idle & WOT
Approx. 7.3 = Vbatt = 17.3