If a crash is detected
while another crash is being stored, the ACU shall store the second crash
record after the first crash record has been completely stored into
NVM(Non Volatile Memory). If a crash is detected while a near crash event
is recorded, the near crash recording shall be stopped and the crash data
shall be recorded into NVM. If a first or second stage crash is detected
while a pretensioner only event is recorded, the pretensioner only event
recording shall be stopped and the first or second stage crash shall be
recorded.
If a crash event occurs
within 300 ms of an ongoing event, the ACU shall deploy all restraints
according to the deployment logic unless the algorithm is disabled (due to
an internal fault). However, the ACU shall write the crash record for the
first detected event only.
Item
|
Detecting
Condition
|
Possible cause
|
DTC Strategy
|
| •
|
Crash recorded with inhibited
PAB | |
|
Threshold Value
|
|
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 ?
▶ DTC caused by deployment of front PAB.
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.
