Okay, so just to put this a different way, all the windows work from their own switch except for the driver front? Also, the driver front does not work on the passenger window?
If this is the case we need to find if it is the switch or the door module. Do you have a scan tool that can see switch inputs in the driver door module? If so, press the window button and see if the door module sees it. If not, we need a switch. If it does the door module is the issue.
If you don't have a scan tool that can do that, we need to check voltage at the door module. However, you need to go to the output of the door module because the switch input is a bus input and you will not get signal voltage to tell you if it is working.
So go to the orange black wire and check voltage and then press the down button on the driver window. Do you have voltage?
The other way is to start with replacing the switch and if that doesn't work, replace the door module.
Let me know if this makes sense.
Images (Click to make bigger)
Thursday, September 24th, 2020 AT 3:06 PM