Suburban 1/2 Ton 2WD V8-5.3L VIN T (2004)
unnecessary SIR system repairs, remove all fuses supplying power to the SDM. With all SDM fuses removed and the ignition switch in the ON
position, the AIR BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. Refer to SIR Schematics or Electrical Center Identification Views See: Restraint
Systems/Air Bag Systems/Diagrams/Electrical Diagrams.
4. Wait 1 minute before working on the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
2. Install the fuse(s) supplying power to the SDM. Refer to SIR Schematics or Electrical Center Identification Views See: Restraint Systems/Air Bag
Systems/Diagrams/Electrical Diagrams.
3. Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF.
4. Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - SIR See: Restraint Systems/Air Bag Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview.
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead.
2. Place the ignition in the OFF position.
3. Disconnect the negative battery cable from the battery.
4. Wait 1 minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position.
2. Connect the negative battery cable to the battery.
3. Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF.
4. Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - SIR See: Restraint Systems/Air Bag Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview.
