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Old 06-16-2010, 18:05   #1 (permalink)
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No Windows

I have fried something in the circuit that powers all of the windows in my wife's '03 Expl. I have traced the problem to the interior fuse block where I think the problem is a burnt terminal or wire connected to the accessory delay relay. Unfortunately, it is just too crowded in there to remove the fuse block. I can dismount the thing from the frame, but can't find the secret handshake to pull it out. Can someone tell me what else has to come out first? There are two wire connectors on the back side of the block that I still haven't been able to pull. Could that be it? Thanks for any advice.
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Old 06-16-2010, 22:07   #2 (permalink)
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Re: No Windows

Quote:
Originally Posted by Yukon Youngun View Post
I have fried something in the circuit that powers all of the windows in my wife's '03 Expl. I have traced the problem to the interior fuse block where I think the problem is a burnt terminal or wire connected to the accessory delay relay. Unfortunately, it is just too crowded in there to remove the fuse block. I can dismount the thing from the frame, but can't find the secret handshake to pull it out. Can someone tell me what else has to come out first? There are two wire connectors on the back side of the block that I still haven't been able to pull. Could that be it? Thanks for any advice.
Hi Yukon Youngun.

My first thought would be to visually inspect the fuses and relay that control the windows if you haven't done so already. There should be 3 fuses in all. 2 fuses under the hood and 1 under the dash work with this circuit and then of course the accessory delay relay itself which is on the back of the interior fuse panel. Now if it was that relay, other accessories may not be working either. Bad wiring in the driver's door could also be the culprit or if the main switch is bad, this could affect all of the windows.

If worse comes to worse, a test light should be in your future to find out where the short is. I would think that a fuse would have popped, but stranger things have happened.
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Old 06-16-2010, 22:32   #3 (permalink)
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Re: No Windows

What did you do to make it quit?
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Old 06-17-2010, 04:44   #4 (permalink)
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Re: No Windows

Back in Nov, one day I had to use this truck for something and there was a very light frost on the windows. I found that there was enough to make them stick closed, but it was light enough that I thought I could just bump them down and up a few times to break them loose. No such luck. But at one point I think I tried to move all four windows at the same time and it was too much current somewhere and they all quit.

Now, I have checked all the fuses and relays in the circuit and have voltage going into the interior fuse panel, but nothing coming out to the driver door window control. Since I swapped the relays, I must assume for the moment that the acc del relay is good. I also got good continuity in the wire from the fuse panel to the door control. My focus, then, is on the fuse panel itself, one of the wire end terminals or the relay socket, but I can't get the panel out to look it over.

There are two wire connectors on top of this panel that I could not get unplugged. Perhaps that is all I need to do to release this thing? Otherwise, it looks like I have to remove the e-brake pedal ass'y and/or a host of cable bundles and dash panels that I don't think should be related.
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Old 06-17-2010, 09:24   #5 (permalink)
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Re: No Windows

Before you take it apart, check this first. Here's wiring diagrams from a 2001. They're probably similar. Maybe they will help. There's more but that would be after you have power to the switch so if you need them later, let me know.

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Old 06-17-2010, 20:55   #6 (permalink)
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Re: No Windows

Definitely different schematics than what I am working with, but similar enough. What I have does not show the GEM. Effectively, I have power on wire #170 but not 400. Don't know yet about 705, but I do know that the coils on the acc del relay and the identical one next to it both read about 72 ohms.

I had hoped to try a jumper across the relay tonight, but the truck has been occupied this evening so it will have to wait until tomorrow. At least I now know what the acc del relay does. That'll help some. Thanks.
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Old 06-22-2010, 21:44   #7 (permalink)
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Re: No Windows

Finally got back into this today. It seems the continuity I got on the power wire was only intermittent. So there's #1. Managed to get the boot covering the wire bundle from the frame to the driver door open enough to look inside. Not only is the window control power wire broken, but also its ground wire --#2. I also found a third wire broken -- the ground side of the door lock control. So, I guess it was failing anyway and my trying to free up all four stuck windows was just the last thing it needed to finally blow it loose.

I'm figuring butt splices for quick fix, but it seems that would just create more stress in an apparently already suspect area and I will be back again very soon. Better way?
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Old 06-22-2010, 22:25   #8 (permalink)
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Re: No Windows

I'd loosen the harness in the door, Mark them where they'd be spliced inside the door, pull the wires into the cab through the boot, and splice them there and inside. That way the flexing will be on a solid wire. Otherwise get a used harness from a wrecking yard, check it closely and insytall it.
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