924Board.org

FASTdan · Joined: 30 Jan 2006 Posts: 81

I had a very successful day on the 924 today. Installed a CD player and was pleased to learn that someone in the past has put some excellent speakers in so sound quality is pretty good

. I also added an extra earth lead from the battery to engine block which seems to have cleared up some of my electrical problems - the passenger electric mirror now works but drivers still doesnt and the fuel gauge seems to have stopped jumping about. I also installed a new clock as the old one didnt work.

However I now have a few more questions. First off, I have a number of loose wires that i dont know the function of!

First, these 2 purple ones, they run down the drivers side sill from the back of the car but are not plugged into anything up front as you can see!

Second, this plug that is protruding from the fuze box! Sorry its a poor picture but i hope someone can recognise this?

Third, 2 wires again hanging from around the fuse box area - i have identified these as the electric ariel cables, however im unsure how/where to power them from?

fourth, this blue wire that has clearly been added by someone over the years as it doesnt appear to be an original wire. It runs between the 2 headlights and i accidentally broke it (got caught in the light lifting mechanism). However i havent noticed anything not working since it broke.

Fifth, another blue wire running down the drivers side from the bulkhead towards the headlight - this has never been connected:

If anyone can give me any pointers on any of these I would be most grateful.
Also, I dont get any electrical power to the lights/radio etc until the 2nd click on the ignition barrel - is this normal for these cars? seems a bit odd to have a first click that does nothing!! It also means you cant really have the radio on with the engine off for fear of burning the coil out!

Thanks in advance for any replies

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1980 924LUX

gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

Whith the exception of the unconnected wire (with shield) in teh snd photo, I don;t think any of the wires pictured in the photos is original.

They look like they could be from an aftermarket alarm or stereo system. The blue wire that has the obvious splice could be from the power antenna (does it have a power antenna?).

chris24 · Posted: Mon Mar 20, 2006 6:18 pm Post subject:

Could be a faulty ignition switch, connectors or the cables from the 1st position could be shot.
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1983 - 924 (185K miles) - not mint
1985 - 924 (148K miles) - mint
1990 - 944S2 cab (52K miles)

FASTdan · Joined: 30 Jan 2006 Posts: 81

Ozzie · Posted: Mon Mar 20, 2006 7:42 pm Post subject:

Additional lights?
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

seanski44 · Joined: 13 Mar 2006 Posts: 532 Location: Nottingham UK

Assuming you have a power antenna but its not connected, power antenna wires usually run from the antenna to the stereo directly, or at least one wire should, there should be an earth also. Your stereo may have a dedicated power antenna output or an 'aux' power output - this needs to run to the antenna.

As for the other stuff, as mentioned, aftermarket stuff - its possible someone ran a speaker wire to the back for a boombox, or an amp for the good speakers, or to some rear fill-in speakers.

For instance, on my car, some heathen PO had hacked the carpet which covers each wheel well storage area to fit 6by9 speakers. These had been removed when I got the car, so it just had to big holes, yuch. Can't have sounded all that good in the flimsy matting either!

Best bet for getting a 'switched' supply might be to find another accessory that switches on with the first turn of the key and using that for your stereo's switched feed. The main power for the stereo will come from the continuous power feed and not the switchable, so it won't put that much loading on the other accessory. (Not a strictly 'keep it original' style solution, but it'll work)
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1998 BMW Z3 2.8 arctic silver & red

1981 168HP 931 S2 blue/tan leather - SOLD

1985 121HP 924 2.0l na modded - SOLD!
1992 968 lux SOLD
1989 944 2.7 lux SOLD

D Hook · Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE

That white plug in the second picture could be a switched power supply. I think I used that to hook up my stereo. Check it with a meter.
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'80 924 n/a SOLD

seanski44 · Joined: 13 Mar 2006 Posts: 532 Location: Nottingham UK

FASTdan · Joined: 30 Jan 2006 Posts: 81

Smoothie · Posted: Tue Mar 21, 2006 4:21 am Post subject: Re: a few more electrical q's....

jeff01 · Posted: Tue Mar 28, 2006 4:55 am Post subject:

Im a newby and dont speak english so well but maybe you could help me

I have a third 924 (actually one of my three cars was for used parts) Tere was a mess with the wires because somebody before me had cut all unknown wires and nothing worked correctly....so I decided to change the wires (a part which goes threw the firewall to the engine room) but now I have some unknown wires hanging near the fusebox and I would like to fix that mess. (btw there is no backlights on the cauges) and the headlight comes up if turn the lights on but if I turn them off the lights wount come down and Left High Beam don´t work too

(Before changing the fusebox the Left Low Beam was missing and High beam was OK) I have checked all of the fuses and relay´s
Here are the unknown wires:

Sorry beckause of my bad language but maybe somebody coud help me

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www.porsche-foorum.ee
Porsche 924 ´80

Smoothie · Posted: Tue Mar 28, 2006 6:05 am Post subject:

Jeff01 - Some of those wires with 1/4" female spade connectors probably go to the "G" section on the back of
the fuse-relay panel. I have locations for some of them written down for my car - for instance a wt/ye
(white wire with yellow stripe) goes to "G6" - that may be one of the wires hanging in your 3rd picture.
This pic of the back of the fuse-relay panel shows the "G" connectors at upper-left -
http://pg.photos.yahoo.com/ph/smoothies931pics/detail?.dir=a174&.dnm=4bfc.jpg&.src=ph

"G" connectors, wire colors and (wire sizes)
G1 - re/br (1.5) foglights
G3 - bk (alarm) & bk/ye (power windows) (0.5)
G4 - gr/gn (0.5) & gr/wt dash lights (0.5)
G6 - wt/ye (1.0)
G7 - bk/vi (0.5) AC and blower
G8 - wt (1.5) high beams
"G area", but not connected - gn/re (≈3.0), re/bk + added re (≈1.0-0.5)

These are the colors and abbreviations used by Porsche -
bk - black
wt - white
re - red
gn - green
ye - yellow
gr - grey
br - brown
bl - blue
vi - violet
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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

Ozzie · Posted: Tue Mar 28, 2006 7:02 am Post subject:

fuses 1-2-3-4 should all be the same amps. 8amp and white.

only 5 -10 -15 are 16amp -red/pink.
the rest are 8 amp -white
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

jeff01 · Posted: Tue Mar 28, 2006 3:56 pm Post subject:

Thank U Smoothie & ozzy atleast 1 wire will be in right position today. Anybody knows more about hangig wires

1 have a one more question

Does something bad gonna happens when I connect 2 wires behand the light relay? Then bouth lights will work together (when I use high beam lights then low beams are lightening too)
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www.porsche-foorum.ee
Porsche 924 ´80

Peter_in_AU · Joined: 29 Jul 2001 Posts: 2743 Location: Sydney, Australia

jeff01

you should update your Profile so we know where you are from. If you leave the Location blank then everyone assumes you are from the USA and your Euro front bumper tells me you are not.

I'm not sure why so many members from the US don't know where they are. It`s a mystery.
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1979 924 (Gone to a better place)
1974 Lotus 7 S4 "Big Valve" Twin-cam (waiting)
1982 924 (As featured on Wikipedia)

Learn to love your multimeter and may the search be with you