Circuit Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The passenger side deployment loop consists of the following components:

An inflatable restraint side-impact module-RF
The inflatable restraint side-impact module wiring harness
The side-impact module-RF high circuits
The side-impact module-RF module low circuits

A shorting bar is used within the side-impact module-RF connector. The shorting bar will short together the side-impact module-RF high circuit, and the side-impact module-RF low circuit when the connector is disconnected. This helps prevent unwanted deployment of the inflator module during servicing. During a side or frontal crash of sufficient force, the inflatable restraint sensing and diagnostic module (SDM) will allow current to flow through the deployment loop. This flow of current will deploy the side-impact module-RF. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a DTC will be stored in memory.