Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
When the ignition is turned ON, the instrument panel cluster (IPC) flashes the AIR BAG indicator seven times. The inflatable restraint sensing and diagnostic module (SDM) performs diagnostic tests on the SIR system and then commands the IPC to turn the AIR BAG indicator OFF if no SIR malfunction exists. The AIR BAG indicator is controlled by the SDM via serial data communications. If the ignition 1 voltage is outside of the normal operating voltage range 9-16 volts, the SDM will command the IPC to turn the AIR BAG indicator ON with no diagnostic trouble codes (DTCs) present then disables all deployment loops.
⇒ | If the voltage is less than 9 volts refer to Diagnostic System Check - Vehicle . |
⇒ | If the Air Bag indicator does not turn ON replace the IPC. |
⇒ | Note: The AIR BAG warning indicator is not serviceable separately. The IPC must be serviced/replaced as a complete unit. |
Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for IPC and SDM replacement, setup, and programming.