Air Bag

The air bag indicator is a Light Emitting Diode (LED) display that is located in the instrument cluster. The air bag indicator is operated by the inflatable restraint Sensing Diagnostic Module (SDM) Module. The air bag indicator FLASHES 7 times when the ignition switch is turned to the RUN position. The SDM module sends a Class 2 serial data message to the instrument cluster to inform the instrument cluster when to turn ON the air bag indicator.

The air bag indicator will also turn ON when one of the following actions occurs:
^ The instrument cluster receives a Class 2 serial data message from the SDM module requesting the air bag indicator be turned ON.
^ The instrument cluster can not communicate with the SDM module using Class 2 serial data communications.
^ A Diagnostic Trouble Code (DTC) is stored related to the system malfunction.

Refer to SIR in Restraint Systems for more information about the air bag system.