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SPECIAL TOOLS AND EQUIPMENT

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SPECIAL TOOLS Special Tools Illustration Tool Number/Description J38715-A Driver and Passenger SIR Load Tool J 38826 SIR Deployment Harness J39401-B SIR Deployment Fixture

DESCRIPTION AND OPERATION

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SIR SYSTEM DESCRIPTION AND OPERATION SIR System Overview Fig. 130: Illustrating Deployed Inflatable Restraint Courtesy of GENERAL MOTORS CORP. occupants Seat Belt System (2). The SIR system may contain several inflator modules located throughout the vehicle, i. e. steering wheel module (1) and instrument panel (I/P) module (1). In addition to inflator modules, the vehicle […]

Deployment Inside Vehicle – Vehicle Scrapping Procedure

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Deploy the seat belt pretensioners inside of the vehicle when destroying the vehicle or when salvaging the vehicle for parts. This includes but is not limited to the following situations: Irreparable damage occurs to the vehicle in a non-deployment type accident. Irreparable damage occurs to the vehicle during a theft. The vehicle is being salvaged […]

PRETENSIONER HANDLING AND SCRAPPING

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Tools Required • J 39401-B SIR Deployment Fixture. See Special Tools. • J 38826 SIR Deployment Harness. See Special Tools. • An appropriate pigtail adaptor CAUTION: Refer to SIR Seatbelt Pretensioner Handling Caution. Scrapping Procedure During the course of a vehicle’s useful life, certain situations may arise which will require the disposal of a live […]

Deployment Inside Vehicle – Vehicle Scrapping Procedure

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Deploy the inflator modules inside of the vehicle when destroying the vehicle or when salvaging the vehicle for parts. This includes, but is not limited to, the following situations: • The vehicle has completed all useful life. • Irreparable damage occurred to the vehicle in a non-deployment type accident. • Irreparable damage occurred to the […]

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

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1. Disable the SIR. Refer to SIR Disabling and Enabling. 2. Remove the center pillar lower trim panel. Refer to Center Pillar Lower Trim Panel Replacement. 3. Fully deploy the pretensioner before disposal. Refer to Pretensioner Handling and Scrapping. 1 Bolt, Seat Belt Retractor Tighten: 52 N. m (38 lb ft) 2 Adjuster, Shoulder Belt […]

Seat Belt Retractor Pretensioner Replacement – Front

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Callout Component Name CAUTION: In order to prevent accidental deployment and the risk of personal injury, do not dispose of an undeployed inflatable restraint seat belt pretensioner as normal shop waste. Undeployed seat belt pretensioners contain substances that could cause severe illness or personal injury if their sealed containers are damaged during disposal. Use the […]

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

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1. Disable the SIR. Refer to SIR Disabling and Enabling. 2. Remove the windshield garnish molding. Refer to Windshield Pillar Garnish Molding Replacement. 3. Remove the upper center pillar trim panel. Refer to Center Pillar Upper Trim Panel Replacement. 4. Remove the rear body side upper garnish molding. Refer to Body Side Rear Upper Garnish […]

REPAIR INSTRUCTIONS

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SIR SERVICE PRECAUTIONS CAUTION: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury or unnecessary SIR system repairs. The inflatable restraint sensing and diagnostic […]

DTC U1241 Lost Communication With Scan Tool

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Circuit Description The passenger presence system (PPS) monitors itself for faults and will set/flash DTCs if a fault is detected. The PPS communicates with the inflatable restraint sensing and diagnostic module (SDM) via non class 2 communications. When the SDM receives input from the PPS that a PPS fault has occurred, the SDM will request […]