GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Rendezvous - AWD 🢒 Body 🢒 Wiring Systems 🢒 Underhood Electrical Center or Junction Block Replacement

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

    2. Object Number: 628112 Size: SH
  2. Remove the underhood accessory wiring junction block cover.
    3. 2.1. Release the retaining tabs (1).
    2.2. Remove the underhood accessory wiring junction block cover (2).

    Object Number: 628114 Size: SH
  3. Disconnect the positive battery cable.
    4. 3.1. Remove the nut (1).
    3.2. Position the positive battery cable (2) aside.

    Object Number: 628113 Size: SH
  4. Remove the underhood accessory wiring junction block.
    5. 4.1. Loosen the wiring harness retaining bolts (1).
    4.2. Release the four underhood accessory wiring junction block retaining clips (2).
    4.3. Lift the underhood accessory wiring junction block (3) out of the mounting bracket.
    4.4. Disconnect the electrical connectors.
    4.5. Remove the underhood accessory wiring junction block (3).

Installation Procedure

    Object Number: 628115 Size: SH
  1. Align the electrical connectors to there slots in the underhood accessory wiring junction block bracket.

    2. Object Number: 628122 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.

  2. Install the underhood accessory wiring junction block.
    3. 2.1. Align the underhood accessory wiring junction block (3) onto the electrical connectors.
    2.2. Hand tighten the harness retaining bolts (1).
    2.3. Secure the four underhood accessory wiring junction block retaining clips (2).

    Tighten
    Tighten the underhood accessory wiring junction block harness retaining bolts (1) to 4 N·m (36 lb in).


    Object Number: 628114 Size: SH
  3. Connect the positive battery cable (2).
  4. Install the positive battery cable nut (1).

    5. Tighten
    Tighten the positive battery cable nut (1) to 16 N·m (12 lb ft).


    Object Number: 628112 Size: SH
  5. Install the underhood accessory wiring junction block cover (2).
  6. Secure the retaining tabs (1).
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .