WARNING: This page is about a different car, the 2003 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to illustrations to identify SIR electrical connector terminals. See Fig 1, Fig 2, Fig 3 & Fig 4
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Fig 1: Identifying SDM Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Driver-side Air Bag Module Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Passenger-side & Side Impact Air Bag Module Connectors
Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Side Impact Sensor (SIS) Terminals