Inflatable Restraint Indicator Light
When ignition switch is in RUN or START position, battery voltage is applied to the INFLATABLE RESTRAINT indicator light. The Diagnostic Energy Reserve Module (DERM) turns on the light by providing a ground to a lamp driver. The INFLATABLE RESTRAINT indicator light verifies bulb and DERM operation by flashing 7-9 times when ignition is first turned on, warning the driver of SIR electrical system faults which could potentially affect the operation of the SIR system.
In addition, the light provides diagnostic information by flashing Diagnostic Trouble Codes (DTCs) when the flash code diagnostic mode is entered on models without on-board diagnosis. INFLATABLE RESTRAINT indicator light notifies driver of SIR system faults.