Airbag Sensing and Diagnostic Module Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Inflatable Restraint Sensing and Diagnostic Module

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
WARNING: Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before applying power to the SDM, make sure that it is securely fastened with the arrow facing toward the front of the vehicle. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs. WARNING: Refer to SIR Warning . Preliminary Procedures Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling . Remove the front floor console. Refer to Front Floor Console Replacement (Except Cadillac) , Front Floor Console Replacement (Cadillac) . Remove the radio front floor console speaker. Refer to Radio Front Floor Console Speaker Replacement .
1	Inflatable Restraint Sensing and Diagnostic Module Nuts (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 7 N.m (56 lb in)
2	Inflatable Restraint Sensing and Diagnostic Module Assembly Procedure Position the carpet in order to access the module. Disconnect the electrical connectors. When installing, ensure the arrow on the module is pointed towards the front of the vehicle. If installing a replacement module, program the module. Refer to Control Module References .

Callout

Component Name

WARNING:

Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before applying power to the SDM, make sure that it is securely fastened with the arrow facing toward the front of the vehicle. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.

WARNING:

Refer to SIR Warning .

Preliminary Procedures

Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling .
Remove the front floor console. Refer to Front Floor Console Replacement (Except Cadillac) , Front Floor Console Replacement (Cadillac) .
Remove the radio front floor console speaker. Refer to Radio Front Floor Console Speaker Replacement .

Inflatable Restraint Sensing and Diagnostic Module Nuts (Qty: 3)

CAUTION:

Refer to Fastener Caution .

Tighten
7 N.m (56 lb in)

Inflatable Restraint Sensing and Diagnostic Module Assembly

Procedure

Position the carpet in order to access the module.
Disconnect the electrical connectors.
When installing, ensure the arrow on the module is pointed towards the front of the vehicle.
If installing a replacement module, program the module. Refer to Control Module References .