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.
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 = 9
Diagnostic Time
Qualification
? More than 4 sec
De-Qualification
? When the SRSCM returns to normal condition
Test Condition
Voltage
Idle & WOT
Approx. 8.90 = Vbatt = 16.2