Driver's window slowly stopped working. After much troubleshooting, I found I have no ground at the window motor plug for both up and down positions. When I put meter at both pins for window motor plug and press switch, I do not have 12 volts. If I touch black meter lead to vehicle frame I do get 12 volts when switch is pressed. So I think I have a bad ground in driver's door harness. I already did the GEM bypass splice for tan/blue wire, no luck. Motor is good, switch is good. Is there a separate ground wire for the drivers door? I know each wire in the motor plug alternates acting as the ground wire if switch is pressed up or down. I'm lost at this point, spent all day on it.

 

Have you checked the relay?

 

I swapped it with the other relay, no luck. Don't think it's the relay because passenger window works fine.

 

Yeah I’m not sure what witchcraft makes it work. I just added power windows and locks to my 98 and it was a mess. I had to use 4 relays for the windows. I’m not sure how they make it work with just one. I can only assume the use of diodes.