Roger555

iTrader: (3)

Hello everyone! I haven't posted or been on the forum in a looong time but I need some help!

I have a weird problem that mysteriously developed in the past month. None of my windows function from ANY of the window switches (and no its not the window lock switch). The weird thing is they will all roll down up using the key in the drivers door keyhole method (Turn, Turn-hold for those not familiar). I have not done any mods in the past month that could be attributed to this specifically. The only reason I know it was within the month is because I remember using a drive though at the pharmacy.

So far I've checked all the fuses and done some of the basic troubleshooting in the HELM. I have power and ground at the appropriate wires on the two main connectors leading to the master window switch. I thought I might have a good chance resolving the issue replacing master window switch which contains much of the circuitry for the window system. Sad to say my $15 ebay master switch did not solve the problem. Another possible clue I should mention is none of the leds on any of the window switches are working. They do however work when the windows are operating with the key in the door!

Before I waste another night trouble shooting this I thought maybe someone might have a bright idea or be familiar with this issue???

Help!

nfnsquared

Holy cow, a ghost!!

Are you sure it's not that the lock switch is broken (stuck on lock)?

Confirm that you don't have that roll up/down aftermarket module (I forget what it's called)?

Roger555

iTrader: (3)

Yes unfortunately, I thought it would be that easy too, that's the first thing I did when I removed the switch was check continuity on the lock switch.

My alarm is wired to roll up my windows when I lock the doors but not with an additional module. I forget the specifics of the wiring at the moments but it just taps into the OEM functionality by double pulsing the arm wire I think.

So I just went out and did a test, rolled the windows down with the key in the door then locked the car with my alarm fob and all the windows roll up like they should.

This is really odd, must be a ground or power issue on the switch side of the system. The problem is I don't see anything obvious on the wire diagram, all the wiring goes into the "door multiplex control unit" for both the switch and key cylinder. The power and ground wires going to the multiplex are good.

nfnsquared

Confirm fuse 27 is good?

According to the ETM, here are all the fuses that are connected to the power window system:

7,21, 24, 25, 26, 27

Just double-check to be sure they are all good.

nfnsquared

Update?

Roger555

iTrader: (3)

No , haven't had a chance to look at it yet