GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 Jimmy - 2WD 🢒 Body 🢒 Wiring Systems 🢒 Underhood Electrical Center or Junction Block Replacement

Removal Procedure
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

    2. Object Number: 182736 Size: SH
  2. Remove the battery positive cable cover.

    3. Object Number: 197383 Size: SH
  3. Remove the battery positive cable bolt.
  4. Remove the battery positive cable from the underhood electrical center.

    5. Object Number: 182740 Size: SH
  5. Remove the bolts that attach the underhood electrical center to the underhood electrical center support bracket.

    6. Object Number: 197403 Size: SH
  6. Loosen the bolts that secure the electrical connectors to the bottom of the underhood electrical center.

    7. Object Number: 197410 Size: SH
  7. Disconnect the electrical connectors from the underhood electrical center .
  8. Remove the underhood electrical center from the vehicle.

Installation Procedure

    Object Number: 197410 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Connect the electrical connectors to the underhood electrical center.

    2. Tighten
    Tighten the electrical connector to the underhood electrical center bolts to 7 N·m (62 lb in).


    Object Number: 182740 Size: SH
  2. Install the bolts that attach the underhood electrical center to the underhood electrical center support bracket.

    3. Tighten
    Tighten the underhood fuse block to the underhood electrical center support bracket bolts to 7 N·m (62 lb in).


    Object Number: 197383 Size: SH
  3. Attach the battery positive cable with bolt to the underhood electrical center.

    4. Tighten
    Tighten the battery positive cable to the underhood electrical center bolt to 10 N·m (89 lb in).


    Object Number: 182736 Size: SH
  4. Replace the battery positive cable cover.
  5. Connect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.