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Dash Wiring

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jbsjim
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Dash Wiring

Postby jbsjim » 15 Sep 2010 18:22

I am having some electrical issues (no turn signals or fan) and am wondering about two pairs of wires under the steering column. There are a pair of red wires that terminate in a female insulated plug and a pair of red/green (I think) wires that also terminate in a female insulated plug. Neither is plugged into anything. They are tie wrapped along the column and appear to come out of either the turn signal switch or the dash harness. Does anyone know what these are? The headlights work icluding the high/low beam and they will flash and the also horns work. I can't find anywhere to plug the wires in under there.
Jim

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Marsu
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Postby Marsu » 15 Sep 2010 20:02

Happened to have an upper column with its electrical harnesses beside the desk at the moment. [:)]
Image

There are 3 harnesses that each connect to the main harness.
Image

The connectors pinouts and wiring as follows (numbering from top single pin in clockwise order).

RH Stalk harness (wipers/washers) - 5 pin female connector
Image
1. Green
2. Green/blue
3. Red/green
4. Green/brown
5. Green/black

LH Stalk harness (horn, turn signals, lights flash) - 9 pin female connector
Image
1. Red/green
2. Purple/black
3. Green/brown
4. Purple
5. Blue/red (medium gauge)
6. Green/white
7. Purple
8. Blue (medium gauge)
9. Blue/white (medium gauge)

Ignition harness - 9 pin male connector
Image
1. Red/brown
2. not used
3. Brown (heavy gauge)
4. White/red (heavy gauge)
5. Purple/black
6. Black (2 wires)
7. White (heavy gauge)
8. White/pink (heavy gauge)
9. Green/black

Jim, I'm not sure where you are located so can't comment on any differences that there may be between Aus/UK/US versions.

jbsjim
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Postby jbsjim » 15 Sep 2010 20:19

Thanks Marsu, that is helpful. I'm in California. The connectors I found are insulated female spade connectors. Looking at your pictures I will go back and look to see which wrapped harness they are coming out of. I'm thinking maybe the PO put a turn signal stalk on the car that fits a different year/country. They have never worked for me. The other option would be that Mr. Mouse (who made a mess elsewhere) nipped a couple more wires in places I haven't found yet.
Thanks again.
Jim

Beans
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Postby Beans » 15 Sep 2010 21:14

As far as I know US spec cars had different connectors for the wiper switch, compared to Euro spec cars.
I had to make up this little bodge wire to fit a Californian spec wiper switch to a European spec wiring loom [B)]

Image

Or did BL just have a laugh at future owners ... [:p]

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1981 TR7 FHC Sprint (better known as 't Kreng)</font id="blue">
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DNK
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Postby DNK » 15 Sep 2010 21:37

Beans where did you get the connectors?
I have a delay box and might want to put it somewhere else

Don
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jbsjim
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Postby jbsjim » 15 Sep 2010 23:27

Thanks Beans. The more I think about it the more I'm inclined to look deep in the dash for more chewed wires. I'm lacking both the turn signals and the inside fan which are on different circuits - the fan doesn't even go on the column harness. The fuses are good and neither runs through a relay. I still would like to know what those wires are.

jclay (RIP 2018)
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Postby jclay (RIP 2018) » 16 Sep 2010 01:36

Are they tiny little connectors?

There are two lights at the very bottom of the instrument cluster that each take two individual female connectors. The wires are not part of the regular harnesses.

Maybe that is what you have found.

Clay

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FI Spyder
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Postby FI Spyder » 16 Sep 2010 02:32

I think these be them.

Image

No turn signals? Pair of female connectors. Haven't checked but doesn't a pair of female connectors plug into signal flasher? It would come from turn signal switch? Just thinking out loud.


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jclay (RIP 2018)
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Postby jclay (RIP 2018) » 16 Sep 2010 14:55

Those are the one's I was talking about. And they are different from car to car.

[url="http://www.triumphcars.com/current/wedge%20gauges/index.htm"]Check out Huw's site for more info.[/url]



Clay

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Postby Beans » 16 Sep 2010 15:51

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by DNK</i>

Beans where did you get the connectors<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
[url="http://www.rdae.nl/"]<u><b><font size="2"><font color="red">Rick Donkers Auto Electrics</font id="red"></font id="size2"></b></u>[/url]

<center>Image
<font color="blue"><i>1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)</font id="blue">
<b>[url="http://www.tr7beans.blogspot.com/"]<u><b><font size="2"><font color="red">My Weblog</font id="red"></font id="size2"></b></u>[/url]</b></i></center>

tr7sprint1
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Postby tr7sprint1 » 16 Sep 2010 16:03

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by DNK</i>

Beans where did you get the connectors?
I have a delay box and might want
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

checkout Britishwiring.com in the US

if they don't have the connectors i could supply you with some used ones.





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jbsjim
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Postby jbsjim » 16 Sep 2010 16:09

Thanks for the inputs. I crawled under the dash a bit after work and the 2 pairs of wires are coming from the ignition harness on the column. They exit the tape wrapped harness a few inches before the harness plugs into the dash wiring and just hang there. I'm thinking the ignition switch may not be correct for the car. The wiring has been patched here and there under the dash making it hard to figure out just exactly what is what. Of course the PO didn't bother with getting correct color wiring (or gage). I'm tempted to start unwrapping the harnesses but I'm afraid of what I might find... There is just nothing there for these wires to plug into. They are not for the turn signal flasher or dash lighting.

This weekend I'm getting the meter out and seeing what I can find out. Should be pretty easy to figure out why the turn signals and heater fan aren't operating which is my higher priority - these wires just bugged me.

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