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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 233 (Wiring Systems (General Information)) >> Repair Instructions >> Junction Block Replacement - Accessory Wiring >> Installation Procedure

Installation Procedure

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  1. Install the junction block base by sliding tabs (2) in and pressing in tabs (1) until they are locked.
    Fig 1: Installing Junction Block Base
    G02422101Courtesy of GENERAL MOTORS CORP.
  2. Install into the junction block base the Chassis Harness (1), the I/P Harness (2), the Engine Harness (3), and the Forward LP Harness (4).
    Fig 2: Installing Chassis Harness, I/P Harness, Engine Harness & Forward LP Harness
    G02422102Courtesy of GENERAL MOTORS CORP.
  3. Install the fuse relay center into the junction block.
  4. Install the fuse block center bolts.
    Fig 3: Installing Fuse Relay Center & Bolts
    G02422103Courtesy of GENERAL MOTORS CORP.
  5. Install the harness ends on the fuse block relay center.
  6. Install the harness end nuts (2).
  7. Install the junction block cover (1) the tabs (3) should lock.
  8. Connect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
    Fig 4: Installing Harness End Nuts & Junction Block Cover
    G02422104Courtesy of GENERAL MOTORS CORP.