TrailBlazer 4WD L6-4.2L VIN S (2002)
Fuse Block: Service and Repair
REAR ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the battery negative cable.
2. If replacing the rear electrical center on a Chevrolet Trailblazer EXT or GMC Envoy XL, remove the left second row seat.
3. If replacing the rear electrical center on a Chevrolet Trailblazer, GMC Envoy or Oldsmobile Bravada, 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.
7. Fully loosen the 3 bolts (1) that retain the junction block to the electrical connectors.