Roadmaster 1992

Disarming The System

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NOTE
Before servicing the vehicle, refer to the Precautions Section.


NOTE
For vehicles equipped with OnStar (RPO UE1), with battery backup, the backup battery is a redundant power supply to allow limited ONStar functionality in the event of a main battery power disruption to the OnStar module (VCIM). Do not disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than OFF. Retained accessory power should be allowed to time out or be disabled by opening the driver-s side door before disconnecting power. Disconnecting power to the module in any way while the ignition is ON or with the retained accessory power activated may cause activation of the OnStar backup battery system and will discharge and permanently damage the backup battery. Once the backup battery is activated it will stay on until it has completely discharged. The backup battery is not rechargeable and once it is activated, it must be replaced.

  1. Turn the steering wheel so that the wheels in the straight ahead position.
  2.  
  3. Position the ignition switch to LOCK. Remove the ignition key.
  4.  
  5. Remove the AIR BAG fuse from the I/P fuse block.
  6.  
  7. Remove the underdash sound insulator panel.
  8.  
  9. Disconnect the Connector Position Assurance (CPA) and yellow two way connector for both connectors, located near the base of the steering column.
    NOTE
    With the AIR BAG fuse removed and ignition switch ON the warning lamp will be on. This is normal.



    Click image to see an enlarged view

    Fig. SRS connector disconnection point-1991-1993



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    Fig. SRS connector disconnection point-1994-1996



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    Fig. SRS system component wiring location points-1991-1993



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    Fig. SRS system component wiring location points-1994-1996

  10.  
  11. Disconnect the negative battery. Tape the end of the battery cable.
  12.  
  13. Wait a few minutes before starting work near or on the system.
  14.  

 
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