Every air bag module has
its firing circuit to deploy air bag according to signal of SRSCM.SRSCM
checks every air bag module when ignition "ON". Once any fault is
detected, it is erased only by scantool.
The SRSCM sets DTC B1395
if there's any short circuit in harness of every firing circuit to one
another.
Item
|
Detecting
Condition
|
Possible cause
|
DTC Strategy
|
| •
|
Check current(PWM
type) | |
| •
|
Short circuit among squib
harnesses. |
|
Enable Conditions
|
|
Threshold Value
|
| •
|
Only check during start-up
phase | |
Diagnostic
Time
|
Qualification
|
|
De-Qualification
|
|
| 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 ?
▶ Check for short between ignition circuits of
DAB,PAB,BPT,CAB,SAB. If the condition of harness and component is
OK, this fault is caused by SRSCM internal error so replace a
known-good SRSCM and then go to "Verification of vehicle Repair"
procedure.
▶ Displaying nothing(no DTC) or DTC with label
"H"(historical) shows that Fault is intermittent caused by poor
contact in the part’s and/or SRSCM connector or was repaired and
SRSCM memory was not cleared.
Thoroughly check connectors for looseness,
poor connection, bending, corrosion, contamination, deterioration,
or damage.
▶ Repair or replace as necessary and then go
to "Verification of Vehicle Repair"
procedure. |
| Verification of Vehicle
Repair |
Refer to the DESCRIPTION
in this TROUBLESHOOTING section.
