Cavalier/Z24 L4-138 2.3L DOHC VIN D MFI (1995)
Discriminating Sensors and Arming Sensors: Service and Repair
Passenger Compartment Sensor
WARNING: 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. Disarm system as described in Air Bag System Disarming & Arming.
2. Remove defroster grill, then the instrument panel end caps.
3. Remove instrument panel top pad.
4. Remove Connector Position Assurance (CPA), then disconnect DERM electrical connector.
5. Remove DERM attaching bolts, then the DERM from vehicle.
6. Remove sensor attaching bolts, then the sensor from vehicle.
7. Reverse procedure to install, noting the following:
a. Install sensor with arrow pointed toward front of vehicle.
b. After completing installation, rearm system as described in Air Bag System Disarming & Arming.
c. Turn ignition switch on and verify that the AIR BAG or SIR warning lamp flashes seven to nine times and then turns off. If lamp does not
respond as specified, refer to System Diagnosis.
