SIR Disabling and Enabling Zones
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.
IMPORTANT:
Refer to SIR Service Precautions before disabling the SIR system.
The SIR system has been divided into Disabling and Enabling Zones. When performing service on or near SIR components or SIR wiring, it may be necessary to disable the SIR components in that zone. It may be necessary to disable more than one zone depending on the location of other SIR components and the area being serviced, refer to SIR Zone Identification Views . Refer to the illustration below, to identify the specific zone or zones in which service will be performed. After identifying the zone or zones, proceed to the disabling and enabling procedures for that particular zone or zones.
SIR Disabling and Enabling Zones
| Zone | Description |
|---|---|
| 1 | Inflatable Restraint Electronic Frontal Sensors (EFS). Refer to SIR Disabling and Enabling Zone 1 . |
| 2 | Inflatable Restraint Side Impact Sensor (SIS). Refer to SIR Disabling and Enabling Zone 2 . |
| 3 | Inflatable Restraint Steering Wheel Module and Coil. Refer to SIR Disabling and Enabling Zone 3 . |
| 4 | Not Used |
| 5 | Inflatable Restraint Instrument Panel (IP) Module. Refer to SIR Disabling and Enabling Zone 5 . |
| 6 | Inflatable Restraint Side Impact Sensor (SIS). Refer to SIR Disabling and Enabling Zone 6 . |
| 7 | Inflatable Restraint Side Impact Module. Refer to SIR Disabling and Enabling Zone 7 . |
| 8 | Inflatable Restraint Sensing and Diagnostic Module (SDM). Refer to SIR Disabling and Enabling Zone 8 . |
| 9 | Inflatable Restraint Side Impact Module. Refer to SIR Disabling and Enabling Zone 9 . |
| 10-12 | Not Used |