Warning Lamp
Behavior after Ignition On |
As soon as the
operating voltage is applied to the SRSCM ignition input, the SRSCM
activates the warning lamp for a LED lamp check.
The lamp shall turn on
for 6 seconds during the initialization phase and be turned off afterward.
To alert the driver,
the warning lamp shall turn on for 6 seconds and off for one second then
on continuously after the operating voltage is applied if any active fault
exists.
1. |
Active faults exist.

|
2. |
No active faults or crash records
exists.

|
3. |
When turning the ignition switch ON during
variant coding (EOL) mode, the airbag warning lamp is turned on and
blinks at intervals of 1 second till the coding is
completed.
In case the variant coding is normally
completed, the airbag warning lamp is turned on for 6 seconds, and
then turned off. Otherwise the airbag warning lamp continuously
blinks at intervals of 1 second.
(1) |
In case the variant coding is normally
completed

|
(2) |
In case the variant coding is not
completed

|
When there is active fault in airbag system
or SRSCM internal fault, the variant coding (EOL) can’t be
completed. In this case, do the variant coding (EOL) procedure again
after troubleshooting with the GDS.
|
SRSCM
Independent Warning Lamp Activation
There are certain
fault conditions in which the SRSCM cannot function and thus cannot
control the operation of the airbag warning lamp. In these cases, the
airbag warning lamp is directly activated by appropriate circuitry that
operates independently of the SRSCM. These cases are:
1. |
Loss of battery supply to the SRSCM :
warning lamp turned on
continuously. |
2. |
Loss of internal operating voltage : warning
lamp turned on continuously. |
3. |
Loss of Microprocessor operation : warning
lamp turned on continuously. |
4. |
SRSCM not connected : warning lamp turned on
continuously. |