Sierra 1500 2WD V8-5.3L Hybrid (2004)
7. Disconnect the SDM wiring harness connector (1) from the SDM (3).
8. Remove the SDM mounting fasteners.
9. Remove the SDM from the vehicle.
IMPORTANT: The following repair procedures should only be used in the event that the inflatable restraint sensing and diagnostic module (SDM)
mounting studs and/or fasteners are damaged to the extent that the SDM may no longer be properly mounted.
10. Repair the fasteners using the following procedure:
10.1. Remove the stripped nut and discard the nut.
10.2. Drill out the weld spots to the weld stud from the floor pan side, then remove and discard the stud.
10.3. Condition the floor panel attaching surface where the new stud is to be installed.
10.4. Install new weld stud GM P/N 115115602 and clamp the weld stud.
10.5. Migweld the stud at the drilled holes from above or below the floor pan, as required.
10.6. Apply body sealer GM P/N 9984248 around any exposed openings.
10.7. Install a new fastener GM P/N 11515933.
INSTALLATION PROCEDURE
1. Remove any dirt, grease, or other contaminants from the mounting surface.
2. Install the SDM (3) horizontally to the vehicle.
3. Point the arrow on the SDM toward the front of the vehicle.
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the SDM mounting fasteners.
Tighten
Tighten fasteners to 10 N.m (89 lb in).
5. Connect the SDM wiring harness connector (1) to the SDM.