SRX AWD V8-4.6L VIN A (2004)
Air Bag Deactivation Indicator: Description and Operation
AIR BAG INDICATOR
The AIR BAG indicator, located in the IPC is used to notify the driver of SIR system malfunctions and to verify that the SDM is communicating with the
IPC. When the ignition is turned ON, the SDM is supplied with ignition positive voltage. The SDM requests the IPC to flash the AIR BAG indicator
seven times. While flashing the indicator, the SDM conducts test on all SIR system components and circuits. If no malfunctions are detected the SDM
will communicate with the IPC through the class 2 serial data circuit and command the AIR BAG indicator OFF. The SDM provides continuous
monitoring of the air bag circuits by conducting a sequence of checks. If a malfunction is detected the SDM will store a diagnostic trouble code (DTC)
and command the IPC to turn the AIR BAG indicator ON via class 2 serial data and a SERVICE AIR BAG message will be display on the Driver
Information Center (DIC). The presence of a SIR system malfunction could result in non-deployment of the air bags or deployment in conditions less
severe than intended. The AIR BAG indicator and the SERVICE AIR BAG message on the DIC will remain ON until the malfunction has been repaired.
