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. |
[B1657] The SRSCM sets
DTC B1657 if any BPT deploys.
[B1658] When the Crash
(Belt pretentioner 6times depoyment) recorded in the SRSCM.
Item
|
Detecting
Condition
|
Possible
cause
|
DTC Strategy
|
|
|
Enable Conditions
|
|
Diagnostic
Time
|
Qualification
|
|
De-Qualification
|
B1657
|
|
B1658
|
| •
|
∞ (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 BPT.
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.
