Envoy 2WD V8-5.3L VIN P (2004)
Relay Box: Service and Repair
Rear Electrical Center or Junction Block Replacement
REAR ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the battery negative cable.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
2. If replacing the rear electrical center on the long wheelbase Ascender, remove the left second row seat.
3. If replacing the rear electrical center on short wheelbase Ascender, position the left second row seat to a cargo position.
4. Remove the rear electrical center cover.
5. Remove the battery feed terminal nut (2) from the junction block.
6. Remove the body control module (BCM) from the rear electrical center. Refer to Body Control Module Replacement in Body Control System.
7. Fully loosen the 3 bolts (1) that retain the junction block to the electrical connectors.
8. Release the tabs that retain the junction block to the block base.
9. Remove the junction block from the block base.
