Inflatable Restraint Side Impact Sensing and Diagnostic Module Replacement - Left Side for Cadillac Seville 1999

CAUTION: Be careful when you handle an inflatable restraint side impact sensor (SIS) or inflatable restraint side impact sensing module (SISM). Do not strike or jolt the SIS or SISM. Before applying power to the SIS or SISM:

•	Remove any dirt, grease, etc. from the mounting surface

•	Position the SIS or SISM on the mounting surface

•	Tighten all of the SIS or SISM fasteners to the specified torque value

Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary air bag system repairs.
1. Disable the SIR system. Refer to Disabling the SIR System .
2. Remove the center pillar trim panel. Refer to Center Pillar Garnish Molding Replacement in Interior Trim.
3. Remove the Connector Position Assurance (CPA) (3) from the inflatable restraint side impact sensing module (SISM) harness connector (2).
4. Disconnect the SDM harness connector (2) from the SISM (1).



5. Remove the SISM (1) mounting fasteners (2).
6. Remove the SISM (1) from the center pillar sheetmetal (5).

1. Install the SISM (1) to the center pillar sheetmetal (5).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the SISM mounting fasteners (1).

Tighten
Tighten the fasteners to 9 N·m (80 lb in).




3. Install the SISM harness connector (2) to the SISM (1).
4. Install the Connector Position Assurance (CPA) (3) to the SISM harness (2) connector.
5. Install the center pillar trim. Refer to Center Pillar Garnish Molding Replacement in Interior Trim.
6. Enable the SIR system. Refer to Enabling the SIR System .