LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1680 (Wiring System (OEM) Troubleshooting And Diagnosis) >> Repair Instructions >> Underhood Electrical Center or Junction Block Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. 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 accessory wiring junction block retainer installation is necessary, perform the following:
    1. 1.1.  Position the junction block retainer to the strut tower and insert the lower tab on the retainer to the slot on the tower.
    2. 1.2.  Install the junction block retainer to strut tower nut.

      Tighten 

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

    3. 1.3.  Position the positive battery cable lead end through the slot in the junction block retainer, then secure the cable retainers.
      Fig 1: Installing Junction Block Retainer To Strut Tower Nut
      G01586865Courtesy of GENERAL MOTORS CORP.
  2. Connect the forward lamp wiring harness connector to the junction block.
    Fig 2: Connecting Forward Lamp Wiring Harness Connector To Junction Block
    G01586866Courtesy 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
    G01586867Courtesy of GENERAL MOTORS CORP.
  4. Connect the engine wiring harness connector to the junction block.
    Fig 4: Connecting Engine Wiring Harness Connector To Junction Block
    G01586868Courtesy of GENERAL MOTORS CORP.
  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).

  6. Connect the IP wiring harness individual connectors to the junction block.
    Fig 5: Disconnecting Instrument Panel Wiring Harness Individual Connectors
    G01586860Courtesy 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: Installing Four Tabs On Retaining Junction Block To Junction Block Retainer
    G01586870Courtesy of GENERAL MOTORS CORP.
  8. Secure the coolant recovery tank hose retainer to the junction block.
  9. Install the positive battery cable lead to the stud on the underhood accessory wiring junction block, then install the cable lead retaining nut.

    Tighten 

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

  10. Install the remote positive battery cable stud cover.
    Fig 7: Installing Positive Battery Cable Stud Cover
    G01586871Courtesy of GENERAL MOTORS CORP.
  11. Connect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .