gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Inflatable Restraint Sensing And Diagnostic Module <--> [Air Bag Control Module] > < SIR Disabling and Enabling Zones|Page 7554
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Air Bag Harness: Description and Operation

INFLATABLE RESTRAINT WIRING HARNESSES

The wiring harnesses connect the sensing and diagnostic module (SDM), inflator modules, front end sensor, seat belt pretensioners, seat position sensors
(SPS), and the class 2 serial data circuit together using weather pack connectors. SIR system connectors are yellow in color for easy identification. When
repairing SIR system wiring harnesses, follow the proper testing and wiring repair procedures outlined in this manual.

Inflatable Restraint Sensing And Diagnostic Module <--> [Air Bag Control Module] > < SIR Disabling and Enabling Zones|Page 7554