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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1307 (Wiring Systems And Power Management - Introduction) >> Repair Instructions >> Underhood Electrical Center or Junction Block Replacement

Underhood Electrical Center or Junction Block Replacement

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Underhood Electrical Center/Junction Block
GM1827690Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure: 
Disconnect the battery. Refer to Battery Negative Cable Disconnection and Connection (With Single Battery) , Battery Negative Cable Disconnection and Connection (With Auxiliary Battery) or Battery Negative Cable Disconnection and Connection (With Dual Batteries) .
1 Underhood Electrical Center/Junction Block
Tip: 
  • Remove the cover.
  • Release the retainers securing the junction block to the bracket.
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