LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 271 (Supplemental Inflatable Restraint System) >> Repair Instructions >> Inflatable Restraint Sensing and Diagnostic Module Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of SDM
    GM1276856Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  1. Install the SDM (1) to the floor studs (3) with 3 nuts (2).

    Tighten:  Tighten the SDM nuts to 9 N.m (79 lb in).

    2. Fig 2: View Of SDM & Electrical Connector
    GM1276854Courtesy of GENERAL MOTORS CORP.
  2. Connect the electrical connector (2) to the SDM (1).
  3. Fold the carpet back down over the SDM.
  4. Install the floor console. Refer to Console Replacement (Large w/Manual or Auto Transmission) or Console Replacement (Small w/Manual Transmission) .
    5. NOTE: The AIR BAG indicator may remain ON after the SDM has been replaced. DTC B1001 may set requiring the SDM part number to be set in multiple modules. If the indicator remains ON after enabling the SIR system, perform the diagnostic system check and follow the steps thoroughly to ensure that the SDM is set properly.
  5. Enable the SIR system. Refer to SIR Disabling and Enabling .
  6. Program the SDM. Refer to Control Module References .
scientia non olet · About LEMON Manuals