Underhood Electrical Center or Junction Block Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Underhood Electrical Center/Junction Block

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure Disconnect the battery. Refer to Battery Negative Cable Disconnection and Connection .
1	Underhood Electrical Center/Junction Block Remove the cover. Release the retainers securing the junction block to the bracket.