1999 Chevrolet Venture Van, Door Locks Do Not Work

This 1999 Chevrolet Venture van came in with the complaint that the power door locks only work in one direction. This repair applies to all GM mini vans through the 1990’s and early 2000’s. Venture, Montana, Lumina and Silhouette. A quick test at the switch revealed that there was a wiring problem and knowing these vans, it is in the same disgusting place it always is. Under the passenger side carpet, where water has accumulated and rotted out the splice connections. Of course I’m putting on gloves for this one. i pulled the rocker trim panel up and lifted the edge of the carpet and mat.  A gentle squeeze and water will pour out. If you own or ever go to buy one of these vans, do yourself a favor and find out if it has a water problem before it is too late.

If you click on the picture below you will see the broken end of the white wire and the black tape wrapped around the other two white wires to the upper right corner.

A few clips, a new piece of wire and some heat shrink and this one is done. There are several splice joints in this area that affect multiple systems including power door locks, power windows and interior lights.

9 discussions on “1999 Chevrolet Venture Van, Door Locks Do Not Work”

  1. The van in the post was repaired by locating and fixing a corroded splice connection. Since yours involves several items that are controlled by battery and ignition circuits, you will likely have multiple problems or a common ground issue.

  2. I am having the same issue as the post above. No locks, windows or interior lights. Can you let me know what helped this one out? I have started on the passenger side floor and found the wires are wet but there is no obvious damage with the splices.

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