Service Procedure

Important

For additional information, see the SIR subsection in the Restraints section and the Seat subsection of the Body and Accessories section of the appropriate Service Manual.

1. Disable the SIR system.

A. Turn the ignition to the OFF position and remove the key.

B. Remove the driver's side instrument panel access cover. Remove the SDM fuse.

C. Remove the passenger side instrument panel access cover and unclip the frontal air bags yellow 4-way connector from the metal rail. Remove the connector position assurance (CPA) and disconnect the frontal air bags connector.

D. Remove the left side instrument panel access (insulator) cover. Remove the CPA and disconnect the yellow 2-way steering wheel air bag module connector near the base of the steering column.

E. If the vehicle is equipped with a side air bag, remove the CPA from the driver side air bag yellow 2-way connector located under the driver's seat and disconnect the connector.

2. Remove the passenger seat track adjuster front covers.

3. Move the passenger seat forward so that it is between the full forward and halfway position. Also, if equipped, move the seat to the full-up position.

4. Remove the seat belt fastener from the front seat track.

5. Remove the seat track adjuster to floor pan rear bolts.

6. Disconnect the seat electrical connectors.

7. Tip the seat forward and disengage the front seat track hook attachments from the floor pan.

8. Remove the passenger seat from the vehicle.

9. Remove the right front carpet retainer and reposition carpet to access the SDM.

10. Remove the CPA from the two SDM electrical connectors and disconnect the SDM connectors.

11. Remove the SDM mounting bolts and remove the SDM.

12. Install the new SDM and mounting bolts. Tighten

Tighten the bolts to 10 N.m (89 lb in).

13. Connect the two SDM electrical connectors and install the CPAs.

14. Reposition the carpet and install the right front carpet retainer.

15. Install the passenger seat in the vehicle and engage the front seat track hooks in the floor pan openings.

16. Connect the seat electrical connectors.

17. Install the seat track adjuster to floor pan rear bolts. Tighten

Tighten the bolts to 42 N.m (31 lb ft).

18. Install the seat belt to front seat track fastener. Tighten

Tighten the fastener to 42 N.m (31 lb ft).

19. Install the passenger seat track adjuster front covers.

Important

When enabling the SIR system in the next step, do not turn the ignition switch to the ON position to verify proper operation. Verification of proper operation should only be done after the completion of the entire procedure.

20. Enable the SIR system.

A. If the vehicle is equipped with a side air bag, connect the driver side air bag yellow 2-way connector located under the driver's seat and install the CPA.

B. Connect the steering wheel air bag module yellow 2-way connector located near the base of the steering column and install the CPA. Install the instrument panel access cover.

C. Connect the frontal air bag yellow 4-way connector. Install the CPA and clip the connector the metal rail. Install the passenger side instrument panel access cover.

D. Install the 5DM fuse and install the driver's side instrument panel access cover.

E. Do NOT verify SIR system operation at this time.

Important

If you need help with the Reprogramming of the Body Control Module (BCM) in the next steps contact the Tech line Customer Support Center on 1-800-828-6860 before proceeding to Step 21

21. Reprogram the BCM to accept the new SDM part number using the following procedure.

Important
In order to perform the reprogramming your Techline Terminal must be updated with CD # 17 which you should have received in September. 2000. Before proceeding, verify that your Techline Terminal has the required update. All CDs received in the future will continue to have this required software.

22. Connect your Tech 2 to the vehicle and select "Service Programming". Follow the on-screen instructions and "Request Information".

Important

The module being reprogrammed in the next step is the Body Control Module (BCNI).

23. Take the Tech 2 to the Techline Terminal and select "TIS 2000". Select "Service Programming" and follow the on-screen instructions for programming the BCM.

24. Return to the vehicle and reconnect the Tech 2.

25. Select "Programming" followed by "Program the BCM" and follow the on-screen instructions.

26. After programming is completed, exit to the main menu on Tech 2 and disconnect it from the vehicle.

27. Turn the ignition switch to the OFF position and then turn it to the ON position.

28. Verify that the AIR BAG warning lamp flashes seven (7) times and goes out.

29. Install the GM Campaign Identification Label.