GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy C Silverado - 2WD 🢒 Restraints 🢒 SIR 🢒 Enabling the SIR System
  1. Remove the key from the ignition switch.

    2. Object Number: 398308 Size: SH
  2. Connect the passenger yellow 2-way connector (1) located behind the glove box.
  3. Install the connector position assurance (CPA) (2) to the passenger yellow 2-way connector located behind the glove box.

    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 AIR BAG Fuse to the IP fuse block.
  7. Staying well away from both air bags, turn the ignition switch to the RUN position.
    8. 7.1. The AIR BAG warning lamp will flash 7 times.
    7.2. The AIR BAG warning lamp will then turn OFF.
  8. Perform the SIR Diagnostic System Check if the AIR BAG warning lamp does not operate as described.