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
accordane 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. |
The SRSCM sets DTC B1650
if DAB or PAB deploys.
The SRSCM sets DTC B1651
if DSAB or DCAB deploys.
The SRSCM sets DTC B1652
if PSAB or PCAB deploys.
Item
|
Detecting
Condition
|
Possible cause
|
DTC Strategy
|
B1650
|
| •
|
Check DAB or PAB
deployment | |
| •
|
DAB and PAB
deployment. |
| •
|
SAB and CAB
deployment. | |
B1651
|
| •
|
Check DSAB or DCAB
deployment | |
B1652
|
| •
|
Check PSAB or PCAB
deployment | |
Enable Conditions
|
|
Diagnostic
Time
|
Qualification
|
|
De-Qualification
|
| •
|
∞ ( dequalification not permitted
) | |
| 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 ?
▶ DTC caused by deployment of air bag(DAB 1st,
PAB 1st, SAB, CAB). 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 |
Refer to the DESCRIPTION
in this TROUBLESHOOTING section.
