GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.

  2. Object Number: 1937006  Size: SH
  3. Reposition the battery cooling duct (1) from the battery box cover.

  4. Object Number: 1937020  Size: SH
  5. Remove the junction block cover (1) from the junction block.

  6. Object Number: 1936992  Size: SH
  7. Disconnect all the electrical connectors (1) from the junction block fuse holder.

  8. Object Number: 1938489  Size: SH
  9. Remove the junction block fuse holder by releasing and lifting the 4 locking tabs (1) from the retainers (2) at the base of the fuse block holder (3) and reposition from the housing.

  10. Object Number: 1937013  Size: SH
  11. If the junction block housing removal is necessary, perform the following:
  12. 6.1. Remove the bolts (1) from the junction block housing (2).
    6.2. Remove the junction block housing (2) from the vehicle.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1937013  Size: SH
  1. If the junction block housing was removed, perform the following:
  2. 1.1. Install the junction block housing (2) to the vehicle.
    1.2. Install the bolts (1) to the junction block housing (2) and tighten the bolts to 10 N·m (89 lb in).

    Object Number: 1938489  Size: SH
  3. Install the junction block fuse holder by positioning the 4 locking tabs (1) to the retainers (2) at the base of the fuse block holder (3) and pressing into place until fully seated.

  4. Object Number: 1936992  Size: SH
  5. Connect all the electrical connectors (1) to the junction block fuse holder.

  6. Object Number: 1937020  Size: SH
  7. Install the junction block cover (1) to the junction block.

  8. Object Number: 1937006  Size: SH
  9. Reposition the battery cooling duct (1) to the battery box cover.
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.