Sensing and Diagnostic Module Replacement (SDM)

Prior to performing replacement procedures, disarm air bag system. Refer to, Service and Repair/ Air Bag System Disarming & Air Bag System Arming. Refer to, / Specifications/ Mechanical for torque values when installing components.
All sensors and mounting bracket bolts must be carefully torqued to assure proper operation. Never power up the air bag system when any sensor is not rigidly attached to the vehicle, since the sensor could be activated when not attached, causing air bag deployment.


1. Disconnect battery ground cable.
2. Remove left front seat.
3. Remove carpet retaining sill trim molding.
4. Fold back carpet to access SDM.
5. Disconnect connector assurance and electrical connector.
6. Remove SDM attaching nuts and SDM module.
7. Reverse procedure to install.