OEM GMC Sierra 1500 Classic Fuse Box

GMC Sierra 1500 Classic Fuse Box Parts Questions & Experts Answers

• Junction Block
  15139209
  Q: How to replace the Fuse Box in the Body Wiring Harness Junction Block on GMC Sierra 1500 Classic?

  A: Start the replacement process of the Body Wiring Harness Junction Block by removing its retaining nut followed by pushing in the tabs located on the cover. Removal of the junction block from the bracket requires you to disconnect the harness from its front position before pressing on the tabs to release it. Take out all bolts located at the junction block's rear side during removal. First utilize a screwdriver to divide the junction block from the wire harness block before removing the junction block entirely from the vehicle. Place the wire harness block onto the junction block before you install its retaining bolts at a torque value of 6 N.m (53 lb in). Reinstall the junction block to its bracket through the top push point to achieve proper insertion. You should install the harness to the front of the junction block before putting on the cover which will automatically lock in place and then you should tighten the retaining nut by hand until it reaches its proper position.