Enabling the SIR System

The diagnostic energy reserve module or sensing and diagnostic module (DERM/SDM) can maintain enough voltage to cause air bag deployment for up to two minutes after the ignition switch is turned off and the battery is disconnected. Servicing the SIR system during this period may result in accidental deployment and personal injury.


1. Turn ignition switch to LOCK position and remove key.
2. Connect yellow 2-way connector at base of steering column, then install Connector Position Assurance (CPA).
3. Install lefthand sound insulator.
4. Connect 2-way electrical connector through trap door in glove compartment, then install Connector Position Assurance (CPA).
5. Turn ignition key to the RUN position and verify that the AIR BAG warning lamp flashes seven times, then turns off. If lamp does not operate as specified, refer to Testing and Inspection.