wire identification help needed

morriss · 08-12-2009, 06:54 PM

While trying not to think about the fact I now need to do a tb, wp, tensioner, etc., change

, I decided to try and figure out my electrical problems. I feel like sticking a hot poker in my eye when I try and read the wiring diagrams, so I figured I'd pick you guys' brains. Sorry for the quality of some of the pics, this is the best I could get, even after multiple attempts.

First, black wire with blue stripe. It comes out of the loom that is all taped up with factory black tape. It is melted beyond belief, that is why it looks like crap. It is not plugged in anywhere.

Second, 2 white wires coming out of connector V. It appears that either one or both used to go into the slot at the end of the arrow. One of them is connected to a red hot wire connector on its opposite end.

Third, a white wire with green stripe entering the firewall from the engine compartment, not plugged in anywhere.

Allen in AZ? Dano? You have an 81. If anyone else out there has an 82 Euro could you please look at your fuse panel and tell me where these wires are supposed to go? Thanks in advance guys.

MPDano · MPDano's Garage

Hi Morris,

Well, a wrench and a 928 are out my reach until after my sons 2nd Birthday party as I have mega preparing to do on the house. If you can wait till Sunday, I will shoot some pics and maybe see where those wires lead to. I am sure Alan will know exactly what those do when he chimes in.

morriss · 08-13-2009, 06:41 AM

Thanks Leo, waiting until Sunday is not a problem. There is plenty to keep me busy between now and then. I'm not planning a b-day party for my son, but he starts kindergarten next week so we've got to get his supplies, required shots

, etc. done today and tomorrow. Just whenever you get time.

Alan- Sorry about misspelling your name (I have a good friend that uses E instead of two As).

lfausty · lfausty's Garage

black k has two black/blue red s has a black/blue and v yellow both white ends in same slot right side third one down (think for radio) ? blk/blue cig lighter

mine still down for brake light issue /// edit mine brake lights are fixed now

Alan in AZ · 08-13-2009, 09:33 AM

V1 Sunroof motor 1 Black/Brown (do you have one?)
V2 Sunroof motor 2 Black/Green (do you have one?)
V3 I don't see anything V3 but you seem to have a Green wire...?
V4 Battery+ Red (for AFC relay only)
V5 Battery+ Antenna constant power, rear wiper & supressor* 2xRed *optional
V6 Antenna booster+ White (loops through CE to J7 a white wire to radio antenna power)
V7 Lamp Control Red/White
V8 Lamp Control Black

So note you could just connect the 2 white wires together - but they must be fed from a switched (antenna) output of the head unit (not batt).

If you have a sunroof... this is likely related to that (see below)

The other is much harder to say - there are several Black/Blue wires - not all go thought the firewall though.

Possibilities: (check what doesn't worek to narrow down)

1) BK/BL to J5 - dash illumination (58) also a BK/BL wire to pod
2) BK/BL to O1 intensive washer motor
3) BK/BL to K7 - lamp control (should not got to fireewall)
4) BK/BL to O7 backup light switch (should not got to fireewall)
5) BK/BL to L3 sunroof switch

Alan

lfausty · lfausty's Garage

hope i didnt mess u up cross post, on u

and morriss green white wire?

a run down of D im having brake light issue and blk/red seems to be in D and blk/red seem to be in rear each side. two wires came oout of D and dont know if i put back right

morriss · 08-13-2009, 02:28 PM

Thanks Miss Fausty (the pics are a big help) and Allan. Nope, no sunroof (thank God- I couldn't imagine having another piece of glass to let the sun in during the summer!).
Allan- I'm sitting here laughing because
1) BK/BL to J5 - dash illumination (58) also a BK/BL wire to pod
2) BK/BL to O1 intensive washer motor
3) BK/BL to K7 - lamp control (should not got to firewall)

are all out of order right now. The black wire with blue stripe originates in the taped up loom that appears to come from the center console. It's the white with green that comes straight through the firewall.

It will be tomorrow afternoon before I can try out you guys' (oops, guy and girl) tips. I will let ya'll know what happens.

morriss · 08-14-2009, 02:14 PM

Lisa- You are correct. Black with white on top, red/black underneath. I'll send you a pic of connector K later- the batteries just went out as I was trying to get a shot of it, and no mare AA batteries in the house. Even looked in my son's toys (all AAA)!

morriss · 08-14-2009, 06:38 PM

Here's the update. The black wire with 2 blue stripes that was melted appears to be the "lamp control" wire. (Which lamp/s?) In its place on connector K, slot 7, is a piece of speaker wire (with the green tape on it up near the connector). It looks like the original wire died so the PO just ran the speaker wire to replace it. The other end of the speaker wire goes to a relay mounted under the console (slot #9), behind the clock. Is this the path of the original black / blue wire (connector K to relay under console)?

Miss Fausty- I couldn't get a clear shot of connector D for you, but for what it's worth, here is what I COULD get.

vdubr928 · 08-14-2009, 07:48 PM

That relay is the seat belt chime.

morriss · 08-14-2009, 08:09 PM

Huh? So is this where the black / blue wire is supposed to go? Or is it supposed to go somewhere else?

morriss · 08-15-2009, 06:17 AM

Still need some help here guys.

1) Is the black / blue lamp control wire supposed to go to the relay under the console (seat belt chime?)
2) What is the white wire with 2 small green stripes coming out of the firewall? I have 2 of them, but the one in question goes nowhere and the tip has been folded over and taped by the PO.
3) Are Euro cars that different from USA cars when it comes to wiring? There is at least one connector that has
a) a different color than the WSM pg. 90-4 says and/or
b) the wires in the connectors are in different positions on the connector

For example, my connector plug "A" is yellow, not white and the wires on connector "N" are the color they should be, but they are situated in the connector differently. Like the red/black wire is not in N5 but N1, and it all looks factory, not messed with by the PO.

morriss · 08-15-2009, 05:05 PM

Geez, what a mess. I haven't been able to find any detailed info for an 82 Euro (besides the factory wiring diagrams, which I HATE), so I have been using an EXCEL file I found titled "Central Electrical Draft Plug Map for 1984 USA 928 In Excel" to help me along. There are several instances in which my 82 Euro doesn't match up, but for the most part it is really close. According to it, there are only 2 white wires with green stripes, and they are to the fog lights. Why the one to the right light was unplugged and taped up, God only knows. I plugged it back in.
Vdubr928, you were right about the seat belt chime relay identification, but a PO had replaced it with some 911 relay. The correct one, that SHOULD be in there, is part # 928.618.102.03, but the one that is currently in there is 91161810201. A new 928.618.102.03 is at least $160!!!
Does this relay serve any purpose other than the seat belt chime? Do I need to replace it with the correct relay because it also controls something important?
In addition, a PO ran an alternate piece of wire from connector K7 (lamp control wire) to this 911 relay after the original black/blue wire apparantly fried. Is this acceptable, or do I need to run this end of the alternate wire somewhere else?

Anyone?

I understand electrical issues are boring, not fun like working on the "hardware," but any help would be greatly appreciated. TIA.

EIPtuningR32 · EIPtuningR32's Garage

Quote:

Originally Posted by morriss

Geez, what a mess.

dont even get me started man.... you should see my car.lol. i have a feeling if i posted up a thread asking what wires were they would just tell me to get a new car.

morriss · 08-15-2009, 05:42 PM

morriss · 08-16-2009, 04:42 PM

Latest update- After spending hours pouring over the wiring diagrams, I have determined the following:

The black/blue wire from K7 DOES got to the seat belt chime relay, position 15. I replaced the PO's speaker wire with a real piece of wire from K7 to the relay.

The white/green is the right fog light wire (position 2 on connector), don't know why it was unplugged and taped up. I hooked it back up.

The 2 white wires are to the power antenna. It's broke, so I guess that's why they were pulled out of connector V. I plugged them back in for when I put a new head unit in.

Now, the erroneous 911 seat belt chime relay does not have all the males pins that the correct 928 relay does. Sooo, the ignition buzzer warning switch, which gets power from the relay, is not operating. It appears that there is a wire that runs from the buzzer switch to the pod, where it then connects to the fuel consumption guage, at least, and mine is not working, along with the tach - odometer - tripometer - and alternator exciter wire. (Sheet X, location 17, three fourths of the way up, terminal 14).
Could all or some of these not be working because the ignition switch buzzer is not getting power due to the wrong seat belt chime relay? I know that the exciter wire is supposed to go through the ignition switch.

morriss · 08-16-2009, 04:51 PM

OOPS! Forgot to credit Alan in AZ and Lfausty for their help. THANK YOU for getting me started on the right track.

Mrmerlin · 08-17-2009, 04:53 AM

one other bit of info, if you take some time , you will notice that the colored connectors on the CE# panel can be put on in such a way as to unseat individual wire connectors that are plugged into the connector housings.
This happens because the connectors are slightly movable and with the tails of the wires in such a position the CE pins can slide down the release side of the connectors and bend the metal snaps that hold them in the colored parts.

If you find that there are wires that seemingly have been pulled out it would be wise to inspect the rear sides of all of the connectors to see if any other wires look like they might not be fully seated ( you can see a connector that slightly pushed out) .
To fix this it will require that you pull of the colored connector from the CE panel and then carefully remove any wire thats been pushed out , a thin screwdriver works here to move the snap tab.
Once you have removed the said connector then rebend the snap tab and insert it back into the connector in the correct position of course.
Then when you fit the colored connector to the CE panel try to bend all of the tails of the wires so that the tab side cant be fouled by the CE panel pins. Good Luck.
Check every connector, on the CE panel I am sure you will find a few that are damaged

morriss · 08-17-2009, 03:17 PM

Thanks Merlin, I will check it out.
I did find out another piece of useful advice yesterday. My father-in-law (whom we got the 928 from; well traded a perfectly good and running Chevy S-10 for) dropped by yesterday for a bit and mentioned that he once turned on the rear defogger and 10 minutes later the entire back glass shattered! I guess I'd better go back and unplug that wire / relay until I can test it.

Alan in AZ · 08-19-2009, 02:44 PM

I doubt the chime relay will cause the issues you are concerned about - but since its the wrong type - you are better with no relay that the wrong one - I'd just remove it for now. Its too difficult to try to determine the effects of a relay that shouldn't even be there.

All it does is do the chime when the door is open and the key is in the lock or thr markers are on or the paking lights are on or the ignition is on and the drivers seatbelt is not fastened - no big deal...

Alan