Hyundai Elantra HD: Description and Operation
Warning Lamp Activation
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 bulb check.
The lamp shall turn on for 6 seconds during the initialization
phase and be turned off afterward. However, in order to warn 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 fault or historical fault counter is greater
or equal to 10
|
| 2. |
Normal or historical fault counter is less than 10
|
SRSCM Independent Warning Lamp Activation
There are certain fault conditions in which the SRSCM cannot
function and thus cannot control the operation of the standard warning lamp.
In these cases, the standard warning lamp is directly activated by appropriate
circuitry that operates independently of the 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
through the shorting bar.
|
Telltale Lamp Activation
The Telltale Lamp indicates the Passenger Airbag(PAB) enabled
and disabled status based on occupant status of passenger seat. If the passenger
seat is empty or occupied with child (or child seat), the Passenger Airbag is
disabled and the Telltale Lamp is turned ON to inform the driver that the PAB
is disabled. As soon as operating voltage is applied to the SRSCM ignition input,
the SRSCM activates telltale lamp prove out.
Occupant Status Information And Telltale
|
Occupant Status |
Telltale Lamp |
PAB |
|
Empty |
ON |
Disabled |
|
Child (Small Occupant) |
ON |
Disabled |
|
Adult (Large Occupant) |
OFF |
Enabled |
|
Defect |
OFF |
Enabled |
After ignition on, telltale lamp will turn on for 4 seconds
and turn off for 3 seconds during the initialization phase and be turned off
afterward until receipt of first valid suppression message from OCS system.
