Power Window Wiring Question

[Moyal0621]

1988 Blazer - I can get the left hand master window switch to control both windows up and down just fine. The right hand window switch only rolls the right window up but not down. I'm going to refer to the wires in this diagram for my troubleshooting steps and questions below.

https://imgur.com/zb7qSZ8

I cannot for the life of me understand the window switch portions of that diagram. My question is about whether or when there is supposed to be continuity between the tan wire and the Dark Blue/w White stripe wire inside the switches alone.

I’ve ran continuity checks on the wires and these are my findings:

1. There is no continuity between the dark blue/white wire and tan wire between and up to the left and right hand switches.
2. When the DK BLU/WH wire and Tan wire are unplugged from the left switch and connected to right hand switch, there is continuity between these two wires in the right hand switch’s neutral position and no continuity between these two wires in its up or down positions.
3. When DK BLU/WH wire and Tan wire are unplugged from the right hand switch and connected to the left hand switch, there is continuity in all three left hand switch positions for the right hand window. Neutral and up positions have 5-10 ohms of resistance. There is no resistance in the down position.

Is all of this the way it’s supposed to be?

 

[78 GMC Jimmy]

Too long to read.

You can usually buy replacement switches on Amazon for super cheap. Plug them in and see if that fixes it. If the problem is not solved, its a free return.

 

[6872xtc]

Based on the symptoms, my experience and what you found with your continuity check, the fault is in the right side switch.
You should be able to unplug it and use a jumper wire to verify. A couple of simple checks with the meter will lead you to how to jump it, as well as some more verification of switch failure.