GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC Suburban - 4WD 🢒 Restraints 🢒 SIR 🢒 Enabling the SIR System
  1. Remove the key from the ignition switch.

    2. Object Number: 190002 Size: SH
  2. Connect the passenger yellow 2-way connector (1) located near the base of the steering column.
  3. Install the Connector Position Assurance (CPA) (2) to the passenger yellow 2-way connector located near the base of the steering column.

    4. Object Number: 190000 Size: SH
  4. Connect the driver yellow 2-way connector (2) located at the base of the steering column.
  5. Install the Connector Position Assurance (CPA) (1) to the driver yellow 2-way connector located at the base of the steering column.
  6. Install the sound insulator-LH. Refer to Instrument Panel Sound Insulator Replacement in Interior Trim.
  7. Install the AIR BAG Fuse to the IP fuse block.
  8. Staying well away from both air bags, turn the ignition switch to the RUN position.
    9. 8.1. The AIR BAG warning lamp will flash seven times.
    8.2. The AIR BAG warning lamp will then turn OFF.
  9. Perform the SIR Diagnostic System Check if the AIR BAG warning lamp does not operate as described.