924Board.org

[Fasteddie313]

PO wiring...

this comes from the left plug that goes into the steering column presumably the turn signals side...

two wires cut and spliced through a switch that may introduce hot current

3 way switch toggle style that goes both ways and has a middle/center option and a normal (on/off) toggle witch is the one that is in the red wires

I haven't done any continuity testing on any of these yet, I was busy with the batt box..

a little help or any guesses at to what the PO may have been trying to do here?







here is a random brown (ground?) that looks like it goes with the left side multigauge round connector but was hooked to nothing when I pulled the cluster out, and the round pinout connector plug isn't missing any wires, all places are occupied



I also have another random brown wire like this by the glove box (forget the connector style) that comes from the top right

and one other random 2 wire plug that has a solid brown and a brown with white stripe dangling by the clutch pedal coming from behind the fuse box area

the pics I took of those seem to have vanished ???
I might find them yet

any and all help would be much appreciated
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80 Turbo - Slightly Modified

[Kens_74_911s]

Maybe P.O. was turning off a gauge indicator, like a shift indicator light, or pointing a signal to an auxiliary gauge? If you can chase down the pin numbers it may give an indication of whats up.
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Ken - ebay: wandrey1 , *0 , *00 , *01
74 911s widebody
96 BMW 750iL
99 BMW 328i
81 VW MK1-1.8 GTI, 5 spd Pickup
02 Explorer (wife's)
92 BMW 735iL Parting
84,85,86x3,87,944. 82-924,88-924s parted
68, 70, 72, 73, 911~ 70,73 914 past Pcars

[Fasteddie313]

any idea where to find refrence to the pinout on this plug?
hanes doesn't have it
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80 Turbo - Slightly Modified

[larchie]

Image 1 It looks like to me the PO is inserting a switch in order to bypass the windshield wiper switch. So the toggle switch should control the wiper.

-- green/red wire from connector links positive sides of termimal 51c windshield wiper switch and windshield washer pump.
-- brown/black wire from connector links positive side terminal S1windshield wiper switch and terminal S1l of internal wiping relay.
-- green/black wire links positive side terminal 53 windshield wiper switch and positive side terminal 53 windshield wiper.
--green/yellow wire fron connector links positive side terminal 53b windshield wiper switch and positive side terminal 53b windshield wiper.
-- green wire from connector would normally link negative side of terminal 53e of windshield wiper switch to terminal 53M of the internal wiping relay, through the switch in the relay and out through terminal 53S of the relay in a green wire to terminal 31B of the windshield wiper relay. Instead the initial green wire from the connector shown goes to the toggle switch in the image. Note how it continues from the toggle switch via the same orange/white wire to rejoin the green wire which should terminate at terminal 31b of the windshield wiper.
-- black/white wire isn't in the 1980 924 wiring diagram but instead it appears by the process of elimination as a black/green wire. This wire then normally goes from terminal 53a of the negative side of the windshield wiper switch to a black/green wire linking the the positive side of terminal 53a of windshield wiper. Instead, in your image the black/white wire goes the toggle switch. Note how this same spliced white/black wire going through the toggle switch rejoins in a splice the the initial color black/white wire. (A black/white wire is predominately black; a white/black wire is predominately white.)
-- black/white wire spliced to white/black wire bypassing the connector and goes through the switch would normally connect, I think, to the black/white wire at the connector, but instead goes through the toggle switch.

So, you might try turning the ignition on and flip the switch to see if it controls the windshield wiper.

The red wire could be pulled from ...

-- red wire to Fuse 4a going to the defogger relay and used instead for something like the cold start valve.
-- red wire going to Fuse 3 additional fuse board for the cooling fan -- switch for manual control of cooling fan (my guess is it's this).
-- The only other red wires I can think of in that area is the red wire from the battery to the terminal 30 of the ignition/starter switch to bypass the ignition switch so as to "hot wire" the start.

So try checking to see if it turns on the cooling fan by switching on.

For image 2 I don't know. The only connector I can think of having lots of poles would be the connector from the fresh air blower switch or air conditioner switch. I couldn't identify the wire colors so I didn't try to find the wires in an '80 wiring diagram. The brown wire could be a ground for that connector. Does the fresh air blower work?

[Fasteddie313]

yes the wipers didn't work when I got the car, didn't really try them much...

flipped those switches a couple times and seemed to do nothing, maybe they are interdependent needing both to be in syncroposition of the right combination of 1-2 and 1-2-3 to do whatever they are supposed to do...

when I got the car I had no wipers, no electric windows, no passenger mirror adjustment, no rear wiper, maybe others

I didn't really need to completely pull the dash to fix my batt box but I want to figure out this aftermarket wireing and contact cleaner/dielectic grease EVERYTHING behind the dash once and for all

I think those red wires are not native to the car in the first place and may go through the firewall behind the fuse panel

I think we can rule out hot wire the start as there is good key/ignition setup that works and the same key fits the rest of the car but the 6mm allen accessible through that hole in dash that clamps the steering column was MIA when I took it apart.. (im finding quite a few MIA bolts)

the ac control knob is some rig job to hold it in its position but the wireing seems to be orig

that little brown wire there in the last pic isn't going to reach anything but the gauge cluster or very close to that vicinity..

I do really appreciate that reply, that's some great info thank you

my goal with the wiring is to put it back to the way it was from Germany and make it work as originally intended..
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80 Turbo - Slightly Modified

[Fasteddie313]

ok so ive went through the wiper stalk switches/contacts and freshened them all up real nice like, and from what I could tell on the fastest wiper speed the stalk assembly has chassis grounded itself from the brown/black wire and makes a continuity connection between this green wire and the black/white wire....

the turn signal assembly was like brand new and the wiper assembly was all old and showed a lot more patina, but no burnt contacts or anything...

I did not test them to see what they did before I completely tore them down and cleaned em all up but I see no reason at all why they wouldn't work properly after my rebuild...

fascinating little machines these switches/selectors are..

I am going to cut the extra switch out and wire it back to the harness like it should be...

haven't traced the red wires yet, been busy with the battery box rebuild...
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80 Turbo - Slightly Modified

[Fasteddie313]

hmmmm.... I wonder if the red wires could have anything to do with this...

http://www.924board.org/viewtopic.php?t=39897&highlight=

aftermarket car alarm that was once installed...

well, maybe ill even find the rest of the alarm (if it exists) if I ever get around to chasing these red wires...

weather has been silly here, you'd think you were in Seattle or something its been raining more often than not...
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80 Turbo - Slightly Modified

[JasonK]

Any news? Did u remove a relay from that socket?

[Fasteddie313]

No, I didn't remove any relays from anywhere...

I've been completely absorbed in my battery box project and haven't had much opportunity to work on the car period because I cant even uncover it unless the weather is nice and its been raining constantly....

after the battery box is done all of the wiring under the dash is getting a work over including these random switches before the dash and all the rest of the interior goes back in..

I may make some progress on the wiring before the box is done in between the time I can get my hands on some seam sealer to finish it up...
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80 Turbo - Slightly Modified

[Fasteddie313]

ok.. back to business...

the red wires were not connected to the wiper wires at all, just taped together....

the red wire comes from the power antenna in the passenger wheel well, goes through the switch, then fuseable link, then to where the radio is wired constant +12v to a red/black wire that I cant follow, there is also a light bulb and a switch getting power from that red/black..

there is also a white wire coming from the power antenna that goes to the blue radio remote wire that is +12v only when the radio is on (usually used for sub amps)....

the radio is grounded through the same brown wire that is ground for the button that gets pushed when the passengers door is closed to sense open/closed door....

I don't really like it, I don't think the radio ground or radio power are wired through heavy enough circuits.. I am probably going to rewire the radio power to one of the bigger wired behind the fuse box and the ground to my own ground on that crown...

my question is.. what is the wiring supposed to be like on a power antenna, I believe they aren't original..

is red to constant power and white to blue remote correct? does it ground its self where it is mounted? its hard to tell, its behind some AC canister thing back there...

it seems like the white goes to a relay like thing in the antenna its self that closes the red wire circuit when remote power is applied, 500+ ohms resistance white wire to ground, no resistance in red wire... no battery in car

???
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80 Turbo - Slightly Modified

[Fasteddie313]

so the antenna works using the white wire as remote so that's good...

butt... the wipers are really weird...

with the lever all the way down they wipe very slow intermittently..

first up position they do nothing, like off..

2nd up position they wipe fastish, not quite as fast at squirter pull

all the way up they wipe the same as the 2nd up position..

pull for squitrers runs the wipers fastest but no squirter motor that i can tell, did not investigate further..

can someone please tell me what the wipers are supposed to do in the different positions of the stalk lever? I would guess down is supposed to be off and faster as it goes up..??

and still no windows (all switches rebuilt)... window relay?

everything else seems to work so far, haven't tried power mirrors, rear wiper seems not to have a motor in the box back there.. oh and the rear hatch wire between the shock and glass smokes real nice like corroded to hades
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80 Turbo - Slightly Modified

[!tom]

From top to bottom:

High
Low
Off
Intermittent

The wipers go more quickly when you are trying to do a squirt because you have a not great electrical connection (normal operation) in parallel with another electrical connection (squirters).
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78 924 NA
5-lug

[Fasteddie313]

NEAT!!!!

so they are working half ass properly then...

so I just need to figure out why I either have high or low on both high and low positions...

thank you... good news
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80 Turbo - Slightly Modified

[!tom]

The difference between low and high is quite subtle. It's probably working as intended already.
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78 924 NA
5-lug

[Fasteddie313]

allright cool....

maye it will improve when I finish cleaning all the grounds.

I need to fix the drivers wiper arm too, stripped out, I will attempt to clean the splines out and tighten it with a breaker bar giving it a couple wraps with a hemmer down the socket to seat the taper as best as I can...

still have to chase down the completely dead power windows..
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80 Turbo - Slightly Modified