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Home >> Chevrolet >> 2001 >> Impala Base, 3.8 K >> Repair and Diagnosis >> External Pages >> Different car >> Section 444 (Wiring Systems (General Information)) >> Repair Instructions >> Underhood Electrical Center or Junction Block Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  1. If the accessory wiring junction block retainer installation is necessary, perform the following:
    1. 1.1. Install the accessory junction block retainer to the junction block retainer, if equipped.
    2. 1.2. Position the junction block retainer to the strut tower and insert the lower tab on the retainer to the slot on the tower.
      Fig 1: Installing Accessory Wiring Junction Block Retainer
      G01830405Courtesy of GENERAL MOTORS CORP.
    3. 1.3. Install the nuts to the junction block retainer and the accessory junction block retainer.

      Tighten 

      Tighten the underhood accessory wiring junction block retainer and accessory junction block to strut tower nuts to 3 N.m (27 lb in).

    4. 1.4. Position the positive battery cable lead end through the slot in the junction block retainer, then secure the cable retainers.
  2. Connect the forward lamp wiring harness connector to the junction block.
    Fig 2: Connecting Forward Lamp Harness Connector To Junction Block
    G01830406Courtesy of GENERAL MOTORS CORP.
  3. Connect the IP wiring harness connector to the junction block.
    Fig 3: Connecting IP Wiring Harness Connector To Junction Block
    G01830407Courtesy of GENERAL MOTORS CORP.
  4. Connect the engine wiring harness connector to the junction block.
  5. Tighten the bolts retaining the engine, IP and forward lamp wiring harness connectors to the junction block.

    Tighten 

    Tighten the wiring harness connectors to underhood accessory wiring junction block retaining bolts to 7 N.m (62 lb in).

    Fig 4: Connecting Engine Wiring Harness Connector To Junction Block
    G01830408Courtesy of GENERAL MOTORS CORP.
  6. Connect the IP wiring harness individual connectors to the junction block.
    Fig 5: Connecting IP Wiring Harness Individual Connectors To Junction Block
    G01830409Courtesy of GENERAL MOTORS CORP.
  7. Position the wiring harnesses and the accessory wiring junction block to the junction block retainer, align the four retaining tabs and press into place to secure the junction block.
    Fig 6: Positioning Wiring Harness & Accessory Wiring Junction Block To Junction Block Retainer
    G01830410Courtesy of GENERAL MOTORS CORP.
  8. Install the positive battery cable lead to the stud on the underhood accessory wiring junction block, then install the engine wiring harness leads to the stud.
  9. Install the cable leads retaining nut.

    Tighten 

    Tighten the engine wiring harness and positive battery cable leads to underhood accessory wiring junction block retaining nut to 10 N.m (89 lb in).

  10. Install the remote positive battery cable stud cover.
  11. Connect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Engine Electrical.
    Fig 7: Installing Positive Battery Cable Lead To Stud On Underhood Accessory Wiring Junction Block
    G01830411Courtesy of GENERAL MOTORS CORP.