Need wire color the passenger window not working?

2001 CHEVROLET SILVERADO
163,000 MILES • 6.0L • AUTOMATIC
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RLPETERSON78
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I had to take my dash off to put in a new heater coil and air conditioner dryer. After I put it back together, I could roll up the driver side window and both back window but not the passenger window. Investigate it I must have broken a wire. I would like to take the dash off again to find the broken wire or wires, but I need to know the wire colors to look for. They go into a relay that is in the passenger side fuse box. Can you help me?
Jul 14, 2026 at 10:27 PM
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STRAILER
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Yep, I can help you, this an be a broken wire or the main switch went bad but lets test the wiring first, here is a guide to help and the window wiring diagrams so you can confirm the issue. There is a ground at the right side upper kick panel that probably got left off. I marked is on the wiring diagrams.

https://www.2carpros.com/articles/how-to-check-wiring/

Check out the images (below). Please let me know what happens.
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Jul 15, 2026 at 4:40 PM
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RLPETERSON78
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Can you please tell me where ground 203 is? I know there is a ground on the driver side up on top near the window? I that 203?
Jul 15, 2026 at 5:21 PM
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STRAILER
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Yes, it is at the upper right kick panel, looks where the dashboard mounts the ground G203 should be near there.
Jul 15, 2026 at 6:30 PM
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RLPETERSON78
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I took the negative cable off my battery. Then I took my volt meter and attacked it to ground G203 and attacked the other to the lower left post on my relay test and it show green on my volt meter. I tried to attach a video but it said it was too big. It registered 8.2 volts. Does this mean my ground is attached and working?
Jul 20, 2026 at 6:12 PM
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STRAILER
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Can I ask how long the video was? Yep, that sounds like the ground is bad but the video would be better so I can understand the test. You should have 100% continuity to ground on these terminals of the relay (87). let me know.
Jul 20, 2026 at 11:49 PM
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STRAILER
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Here is an image to help.
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Jul 20, 2026 at 11:50 PM
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RLPETERSON78
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20 sec. I did have continuity to the ground or at least to the left bottom post. I don't know where the ground is placed in the relay post.
Jul 21, 2026 at 12:00 AM
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STRAILER
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It should be terminal 87, please go over this guide to see how the relay works.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit/

Let me know
Jul 21, 2026 at 3:31 PM
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