Operation CHARM: Car repair manuals for everyone.

Service Procedure, Parts and Warranty Information

PARTS INFORMATION





Parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO). To ensure these parts will be obtained as soon as possible, they should be ordered from GMSPO on a "C.I.O." order with no special instruction code, but on an advise code (2).

SERVICE PROCEDURE

Notice
Failure to follow proper SIR module precautionary procedures could result in possible air bag deployment, personal injury and/or unneeded SIR system repairs. See section 9J of the service manual for additional and more detailed precautions than those noted in this service procedure.

1. Disconnect and tape negative battery cable terminal before servicing supplemental inflatable restraint (SIR) system. FAILURE TO DO SO MAY RESULT IN ACCIDENTAL DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

Notice:
THE SIR MODULE IS EQUIPPED WITH A DIAGNOSTIC ENERGY RESERVE MODULE (DERM) WHICH ASSURES SUFFICIENT ENERGY TO DEPLOY THE SIR SHOULD IGNITION VOLTAGE BE LOST. THE DERM CAN MAINTAIN SUFFICIENT VOLTAGE TO CAUSE DEPLOYMENT FOR UP TO 10 MINUTES AFTER THE BATTERY IS DISCONNECTED. FOR THIS REASON, WAIT AT LEAST TEN MINUTES BEFORE PROCEEDING TO STEP 2 TO ALLOW SIR TO DE-ENERGIZE.

Steering Wheel:





2. Turn steering wheel 90 degrees from neutral position and, from lower side of steering wheel, remove two bolts securing SIR module to steering wheel (see Figure 1).

3. Turn steering wheel 90 degrees to opposite side of neutral position and remove remaining two bolts (see Figure 1).

Sir Inflator Module:




Sir Inflator Components:





4. Carefully remove SIR module and, while supporting the module (Figure 2), carefully unhook lead wire from back side of SIR module (see Figure 3).

5. Unlock SIR connector by lifting connector lock (see Figure 3) and then disconnect SIR connector.

6. Set aside SIR module with face side up.

Notice:
When carrying a live SIR module, make sure bag and interior trim cover are pointed away from you. Never carry SIR Module by wires or connector on underside of module. Also, when placing a live (undeployed) SIR module on a bench or other surface, always face bag and trim cover up, away from surface. These precautions are necessary so in the unlikely event of an accidental deployment, the bag will deploy with a minimal chance of injury.

7. Remove two steering wheel center plate screws and the horn harness connector bracket screw from steering wheel center plate (save all three screws).

Steering Column Components:





8. Remove horn harness connector bracket (see Figure 4).

9. Remove ignition key and lock steering wheel.

10. Remove steering wheel nut. Nut will not be reused.

11. Position reinforcement plate from kit to steering wheel center plate. Figure 4 shows proper positioning of reinforcement plate.

12. Set horn harness connector bracket on plate. Be certain L-portion of horn harness connector bracket is positioned properly on reinforcement plate as shown in Figure 4.

13. Install three screws removed in step 7 to reinforcement plate. Torque to 2.5 N-m (22 lb.in.).

14. Install new steering wheel nut (included in kit) and tighten to 34 N-m (25 lb.ft.). Insure horn wiring harness is in place as shown in Figure 4 so that wiring harness is not pinched.

Notice:
A pinched wiring harness may cause horn to sound continuously.

Sir Inflator Module:




Sir Inflator Components:





15. While carefully supporting SIR module (Figure 2), reconnect SIR connector and lock SIR connector back into place with connector lock (Figure 3). Be certain locks of SIR connectors are secured.

16. Rehook lead wire to back side of SIR module.

Steering Wheel:





17. Turn steering wheel 90 degrees from neutral position and, from lower side of steering wheel, install two bolts removed in step 3. Torque to 5 N-m (44.2 lb.in.). Turn steering wheel 90 degrees to opposite side of neutral and repeat for two bolts removed in step 2.

18. Reconnect negative battery cable terminal.

19. Set ignition switch to "ON" while watching SIR warning light. Light should flash 6 to 9 times and then go off. If lamp does not operate correctly, refer to section 9J, Chart C of appropriate model year service manual.

20. Install Campaign Identification Label.

CAMPAIGN IDENTIFICATION LABEL

Each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label". Each label provides a space to include the campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.





Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner. Additional "Campaign Identification Labels" can be obtained from DAC.

Apply "Campaign Identification Label" only on a clean, dry surface.

CLAIM INFORMATION





Submit a Product Campaign Claim with the information as shown.

Dealers will automatically receive the correct labor and material allowance based on the labor operation performed.

Refer to the Chevrolet/Geo Claims Processing Manual for details on Product Campaign Claim Submission.





RECAP 92C20