K 1500 Suburban 4WD V8-5.3L VIN Z Flex Fuel (2003)
Air Bag Harness: Description and Operation
INFLATABLE RESTRAINT WIRING HARNESSES
The wiring harnesses connect the sensing and diagnostic module (SDM), inflator modules, passenger presence system (PPS), front end sensors, seat
position switches (SPS), passenger seat belt tension retractor sensor, and the class 2 serial data circuit together using weather pack connectors. SIR
deployment loop 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.
