Forward Discriminating Sensor

WARNING:he 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. Disarm system as described in Air Bag System Disarming & Arming.
2. Remove Connector Position Assurance (CPA), then disconnect sensor pigtail electrical connector.
3. Remove sensor pigtail wiring from clips.
4. Remove bolts, then the upper radiator tie bar to grill reveal molding.
5. Remove sensor mounting bolts, then the sensor.
6. Reverse procedure to install, noting the following:
a. After completing installation, rearm system as described in Air Bag System Disarming & Arming.
b. Turn ignition key to the On position and verify the AIR BAG or SIR warning lamp flashes seven to nine times, then turns off. If warning lamp does not operate as specified, refer to System Diagnosis.