Hyundai Tucson: Restraint / 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 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 fault.

2.Normal or historical fault only exist.

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.If the variant coding is completed normally, the airbag warning lamp will turn 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) cannot be completed. In this case, perform the variant coding (EOL) procedure again after troubleshooting with the self-diagnosis device.

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 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.