Porsche: More 1978 924 questions (Electrical)

Well, while installing my master cylinder, I discovered the brake pressure
sensors had oxidized to their connectors, causing the rear one to
disintegrate as I unplugged it. So, as I wait for the new sensors to
arrive, I tore into the center instrument panel.

The car had a drain on the battery with ignition off, at about 7.25 amps, so
I suspected the clock had gone bad. I replaced all of the fuses with the
proper ones, and unscrewed the console (battery disconnected of course). I
found the harness had been...repaired. After about two hours of trying to
match wires to the Haynes manual, I determined that someone had made a real
mess. The volt meter was connected to a black and grey(?) wire. The clock
was connected to two brown wires, a white wire soldered on to that.

The effect was that the volt meter came on when the ignition was off. The
lights in the instrument panel did not work, neither does the light in the
glove box. The clock did not appear to work either. The oil gauge does
work. I finally decided the whole thing is a mess, and removed the panel,
and the harness. After sorting through the mess, this is what I have.

1. I have a single red wire, attached to the T6d connector. This is the
clock power, according to all that I can see. The wire diagrams I have
seem to indicate that this should be jumpered to the cigar lighter, then to
the glove box. However, the cigar lighter comes from the direction of the
glove box, and has two wires (red) crimped into the one male spade.

2. I have a single black wire from the T6d. This feeds directly to the oil
gauge with the blue and white, and brown wire into the proprietary
connector.

3. I have 2 black with red striped wires that I can not ID. One has power
on with ignition, and the second could be brown and red, and appears to be
ground.

4. I have a number of broken lights cases, but this is secondary. I do not
have any power on the grey and blue wire with the lights on.

5. I have a switch on the left lower side of the panel, with a green
indicator light. This is a three connector switch(SPDT?) marked + & -,
with a broken light connector. I cannot figure out what wires go to this.
I thought the black/brown and red ones did, but this blows the S8 fuse. I
cannot find any reference to this switch in any documentation. It really
looks OEM, but it wouldn't be the first time I was fooled.

As I read the flow diagram, the black wire on the oil gauge should feed the
volt meter. The plug does not look disturbed however. I also have some
user added wires I need to trace back and remove, the only one in this
location is the white ground wire.

The brake failure light is working now that I corrected and replaced all the
fuses, but the seatbelt light is not.

I hope I have given enough details.

Thanks,
Paul.
--
Email is bogus. Email to:
p Sorah circle at mutual data period com(ercial)
no spaces, and the usual punctuation where indicated.

On Sat, 22 Apr 2006 07:16:13 GMT, "Honest John" <com>
wrote:
Wow, you must enjoy reading your posts. I doubt anyone else does.
Troll.
don