OEM 2004 Buick Rainier Fuse Box

2004 Buick Rainier Parts Questions & Experts Answers

• Q: How to replace the rear Fuse Box on 2004 Buick Rainier?

  A: The installation process begins by disconnecting the negative Battery Cable but requires following necessary battery disconnect procedures. The replacement of the rear electrical center demands second row seat removal on the long wheelbase ascender model. Users of the short wheelbase ascender should move the left second row seat to the cargo position. Begin by removing the rear electrical center cover followed by taking out the battery feed terminal nut from the junction block. The Body Control Module (BCM) must be removed from the rear electrical center while the technician fully tightens all 3 bolts locking the junction block to connectors before releasing the tabs to disconnect it from the block base. The installation requires disconnecting the Instrument Panel Harness Connector, mobile telephone harness connector, body wiring harness connector, headliner harness connector, and console harness connector from the junction block. Use the floor space to eliminate the retaining nuts of the block base from the floor studs as the technician extracts the block base from the floor panel. The block base should sit on floor studs before installation with retaining nuts at a torque of 10 n.m (88 lb in) for security. The installation starts with connecting console harness to block base followed by body wiring harness and headliner harness and instrument panel harness and mobile telephone harness. Mount the junction block onto the block base so the retaining tabs fit completely before securing it with 3 bolts which must be tightened to 3.5 n.m (31 lb in). The bcm should be returned to its position in the rear electrical center while attaching the battery feed terminal nut to the junction block with a torque of 10 n.m (88 lb in) recorded. Use the remaining steps to replace the rear electrical center cover before readjusting the left second row seat when necessary and reconnecting the battery negative cord.