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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1572 (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 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the junction block bracket and install the bolts (1).

    Tighten 

    Tighten the junction block bracket bolts to 6 N.m (53 lb in).

  2. Align the wiring harnesses and install the fuse relay center.
    Fig 1: Positioning Junction Block Bracket And Installing Bolts
    G01640232Courtesy of GENERAL MOTORS CORP.
  3. Install the fuse relay center bolts (3).

    Tighten 

    Tighten the relay center bolts to 6 N.m (53 lb in).

  4. Install the harness end bolts (2).
  5. Install the fuse relay center cover (1) over the relay center bolts. Press downward to engage the tabs.
  6. Install the junction block cover. Press downward to engage the tabs.
    Fig 2: Installing Fuse Relay Center Cover Over Relay Center Bolts
    G01640233Courtesy of GENERAL MOTORS CORP.
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