electrical issues (ongoing..)

[sam c.]

Another post about my ongoing electrical nightmares...

As stated a couple times before, I came out one morning and the windows had decided to once again just stop working. I've yet to figure out what their deal is. Its been a couple weeks and I've all but stopped driving the car because of the potential to get caught in a sudden spring rain storm which might result in a single drop of moisture getting in the car, which we all know would be all the excuse it needs to lock the entire system down.

So this morning, I pulled the seat for prob the 10th time since buying this ridiculous pile of trash last summer to once again get started poking at the random mess of wires with the multimeter.

At this point I think its time to admit I'm past my level of electrical abilities or personal capacity for bs. If anyone can offer some advice or opinion to the pictures I'm about to post, I would be forever in your debt.

[sam c.]

As far as I know, the m535 drive box has never been wet (at least not during my brief ownership) and I haven't done anything to it electrically (such as replace the radio).

The windows have been an ongoing source of frustration for me. So much so, that I've pretty much concluded that I will NEVER own another Porsche product of any kind. Ever.

However, while I've got this one, I'd love to be able to drive it. So here we go...

[sam c.]

We'll start with grounds under the seat...

I've got a handful of grounds that come together and are tied together into a bit of a mess before going over to what looks like a factory ground. Is this normal? Is this what everyone else has in their car? Its a bunch of brown wires that are spliced into one thats bolted to the floor. Additionally there's one smaller brown wire that runs with the group and goes over to the same ground.

[sam c.]

As you can also see, the sticker on top of the box is screwed up. Maybe its seen moisture at sometime in its life... Idk. The board itself looks brand new tho and the fuse is fine. Its making good contact and the box is responding when you take it out and install it.

By the way, the windows do respond to the door latches. They do not respond to the roof or the switches.

[sam c.]

That shrink wrapped bundle next to the blue cap is that smaller ground that runs parallel to the bigger main ground. Basically what's going on there is a ton of smaller grounds are spliced together, shrink wrapped and run over to that bolt in the floor. Basically the same set up as the larger bundle of grounds next to it. Is this stock? It looks like a mess and pretty shoddy craftsmanship.

[sam c.]

The blue cap... Idk what that is.. Its a black wire with a blue stripe that comes out from under the carpet with the grounds, is spliced with a slightly smaller black wire with a blue stripe, is capped with that loose fitting blue cap, and then goes to the harness that's plugged into the seat. Is that normal?

[Camibox]

Sam
What year? I'm a rookie with porsche but can find my way around car electrical somewhat. I have wiring diagrams for a 99

[sam c.]

Originally Posted by Camibox

Sam
What year? I'm a rookie with porsche but can find my way around car electrical somewhat. I have wiring diagrams for a 99

Its a 99 base so your diagram sounds like just what the doctor ordered!