B1620
DTC B1620 INTERNAL FAULT - REPLACE SRSCMDTC B1650 CRASH RECORDED IN 1ST STAGE ONLY (FRONTAL - REPLACE SRSCM)
DTC B1651 CRASH RECORDED IN FRONT-DRIVER SIDE AIRBAG (REPLACE SRSCM)
DTC B1652 CRASH RECORDED IN FRONT-PASSENGER SIDE AIRBAG (REPLACE SRSCM)
GENERAL DESCRIPTION
In collision, SRSCM sends current to pertinent air bag for deployment. Besides SRSCM performs diagnosis of overall air bag system and light warning lamp if there's any fault in it. Main functions of SRSCM are as follows.
1. Collision and Passenger presence Detection.
2. Determination of BPT and air bag deployment in accordance with given condition.
3. Internal and external diagnosis of air bag system.
4. Warning by warning lamp if there's any fault in airbag system.
5. Proffering data for scantool diagnosis.
DTC DESCRIPTION
The SRSCM sets DTC B1620 if there is any fault in SRSCM.
The SRSCM sets DTC B1650 if DAB or PAB deploys.
The SRSCM sets DTC B1651 if DSAB deploys.
The SRSCM sets DTC B1652 if PSAB deploys.
DTC Detecting Condition:
MONITOR SCANTOOL DATA
1. Ignition "OFF", connect scantool.
2. Ignition "ON" & Engine "OFF", select "Diagnostic Trouble Codes (DTC)" mode.
3. Monitor diagnostic trouble code and present of trouble code.
4. Using a scantool, clear the DTC.
5. Is DTC present problem?
YES - Internal fault of SRSCM. Substitute with a SRSCM and check for proper operation. If the problem is corrected, replace SRSCM and then go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and select "Diagnostic Trouble Codes (DTC)" mode.
2. Using a scantool, clear the DTC.
3. Operate the vehicle within DTC Enable conditions in General information.
4. Are any DTC present?
YES - Go to the applicable troubleshooting procedure.
NO System is performing to specification at this time.