Mystery Wires on Wiper Loom
Just putting things back together and there are two wires in the wiper loom that are not used.
They are connected together with a bullet coupling and are red, with a yellow tracer _ they are also of the cloth braded type.
As far as I can tell, they would have been used for the fog lamps, which my 340 never had.
Could someone please take a look underneath their bonnet and see if these wires are connected to your fog lamps ?
Thanks
They are connected together with a bullet coupling and are red, with a yellow tracer _ they are also of the cloth braded type.
As far as I can tell, they would have been used for the fog lamps, which my 340 never had.
Could someone please take a look underneath their bonnet and see if these wires are connected to your fog lamps ?
Thanks
Jeff Yellow and Orange (looks like red with age) are for the fog/driving lamp system. You do have me a bit confused with the Wiper loom part. Did you mean wiring loom? I am only aware of these wires crossing from the main loom in front of the radiator which I think is the same RHD and LHD but possibly not. The pickup for the fogs is in the multi block connectors---got a picture?
OK, yes, probably yellow and orange.
I cleaned the wires up with a touch of lacquer thinner and that's what they looked like (red with a yellow tracer)
I compared the colours in the wiring diagram and that's the best match I could find.
Nope, didn't mean wiring loom, "WIPER" loom _ I thought it rather a strange place for them to be.
Car is a left hand driver ordered specifically for Canada.
Will take a photo soon.
Thanks for the reply.
I cleaned the wires up with a touch of lacquer thinner and that's what they looked like (red with a yellow tracer)
I compared the colours in the wiring diagram and that's the best match I could find.
Nope, didn't mean wiring loom, "WIPER" loom _ I thought it rather a strange place for them to be.
Car is a left hand driver ordered specifically for Canada.
Will take a photo soon.
Thanks for the reply.
Well all of the cars had the heaver gauge Orange/yellow wire for fogs installed or not. I checked with the loom routing and it should come out of the left side to the fuse box and regulator and such. It then crosses over in front of the rad and down to the multi connector. If yours is in the wiring loom for the WW it is indeed odd as the only wires in that loom are for the WW and a redundant set of leads for the brake res. warning lamp--when the car is rhd. Are the wires in the loom or just tracing it--if the latter perhaps they have been added.
Fog light circuit is RY code (Red/Yellow), and is the only circuit that uses that colour, Orange was not a colour used in the MK2's as far as I am aware.
All the cables to the Wiper motor have a green trace, and the only common wire is at the switch end which is a Green wire from the regulator, would be good to see pic.
All the cables to the Wiper motor have a green trace, and the only common wire is at the switch end which is a Green wire from the regulator, would be good to see pic.
Tilly it does depend on the diagram you use. Red/Yellow and Orange/yellow are the same on this model. He has identified what it is his question is has anyone seen the wires come from the WW harness other than from the main harness as usual. Jaguar did standardize harnesses so that later 2.4L cars may have a bundle of un used wires--mostly choke related if not all!
It really does appear that the Red and Yellow wires on the wiper loom are just that, red with a yellow tracer.
I did find the wire at the end of the head lamp loom that would have gone to the fog lamps if I had them.
I did a simple continuity test and traced that wire back to the dash as seen in the photo pointed out by the red arrow. (and there is continuity)
There is no continuity from the red and yellow wires at the dash or at the end of the head lamp loom to the mystery wires in the wiper loom, even though they certainly do look like the same colour.
One of the photos is a little out of focus because I was using the "macro" mode and I moved slightly.
I did find the wire at the end of the head lamp loom that would have gone to the fog lamps if I had them.
I did a simple continuity test and traced that wire back to the dash as seen in the photo pointed out by the red arrow. (and there is continuity)
There is no continuity from the red and yellow wires at the dash or at the end of the head lamp loom to the mystery wires in the wiper loom, even though they certainly do look like the same colour.
One of the photos is a little out of focus because I was using the "macro" mode and I moved slightly.
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Jeff the "mystery" wires in your WW look are the redundant brake level warning wires for a RHD car. There should not be any cont. If you want to find cont. go to the wire in your multi contact near the brake booster. It terminates there. The reason your wire is not connected to the light switch is the car did not come with fogs so the 4 position switch was not installed OSHF but the standard switch OSH was.
Yes, one wire shows cont. to the brake lamp warning switch on the left side of the car.
The other shows nothing, I did physically trace the other one to where it comes out at the wiring harness underneath the glove box, that in turn then follows into the rocker panel harness _ and that's as far as I got with the other lead.
Who know where it goes and what it was used for in the rocker panel harness.
When I have time I may delve into it further.
They must have run out of red and green or the had lots of red and yellow to use up ???
The other shows nothing, I did physically trace the other one to where it comes out at the wiring harness underneath the glove box, that in turn then follows into the rocker panel harness _ and that's as far as I got with the other lead.
Who know where it goes and what it was used for in the rocker panel harness.
When I have time I may delve into it further.
They must have run out of red and green or the had lots of red and yellow to use up ???
Tilly it does depend on the diagram you use. Red/Yellow and Orange/yellow are the same on this model. He has identified what it is his question is has anyone seen the wires come from the WW harness other than from the main harness as usual. Jaguar did standardize harnesses so that later 2.4L cars may have a bundle of un used wires--mostly choke related if not all!
Jaguar and Lucas followed the BS wiring colour codes, so most British vehicles of the time had the same colour wires doing the same job, this made life so simple then.
I have my old looms somewhere, I will have a look to see what I have about.
I will also look at Sleddy's 240/340 to see what is on his car, as far as I recall the brake fluid warning light circuit does not run with the wiper motor cables, but I will check that.
Jeff the other wire is the redundant connection for the hand brake warning lamp. I think you will find it terminated in the area you suggested. As the handbrake and fluid are on the same circuit there would be two wires. Again if you are adding fogs you are already wired--you just need the lamps and a 4 position switch. Sort of surprised a Canadian order car would come w/o fogs. Last time I checked SNG has all you need--oh yes and a OSHF plate to go under the switch!
Thanks for that info George, but the issue here was to identify what the redundant wires were on the wiper loom, not so much to add fog lamps.
I also read that the 340 was the basic model and it didn't come with fog lamps unless the customer ordered them _ so I'm going to assume that the original owner didn't order the fog lamps.
And that would make sense, in that fact that the other red/yellow wire leads into the rocker panel that would have been connected to the hand brake lever switch.
Jon, it would be interesting to see what you come up with as far as the other harnesses have and where the wires come out for the low brake warning light and hand brake lever _ weather or not Jaguar placed said wires in the wiper loom.
I also read that the 340 was the basic model and it didn't come with fog lamps unless the customer ordered them _ so I'm going to assume that the original owner didn't order the fog lamps.
And that would make sense, in that fact that the other red/yellow wire leads into the rocker panel that would have been connected to the hand brake lever switch.
Jon, it would be interesting to see what you come up with as far as the other harnesses have and where the wires come out for the low brake warning light and hand brake lever _ weather or not Jaguar placed said wires in the wiper loom.
Last edited by JeffR1; Jun 10, 2018 at 03:18 PM.
Typically I can't find the wiper motor bit at the moment, but looking at the wiring diagrams for LHD and RHD cars, George is spot on the money, was about to post that the other wire appears to be the Handbrake warning cable, not sure why that would be in with the wiper motor wires, but I will check Sleddy's car and see what I can see.
I also have wearlej 's S-type in the workshop, so will look at that too just for fun and interest.
I also have wearlej 's S-type in the workshop, so will look at that too just for fun and interest.
Jeff interesting re: 340. Is your car a big bumper 340 or a proper 340. Is the vin a MK2 vin or a 1J vin. If it is a large bumper 340 and has a MK2 vin it is indeed a rarity and the only one I have heard of. the large bumper 340s were a US oddity and the ROW got Mk2s. Wonder if it was transferred from stock in the US port. That was common but they are not listed as a direct order.
My car is a thick (big) bumper.
I think I read on this forum (not sure though), that the slim line bumpers were not allowed for export, at least into Canada, so that left the thick pumpers.
VIN# is P 18139 5
Body # is EO 67692
Engine# is KJ 11168-8
Gear Box JC6332
and that's the way it appears on the aluminum info plate inside the engine bay with the spaces.
My plate is mounted on the left fender-well, not below the solenoid switch on the fire wall.
I think I read on this forum (not sure though), that the slim line bumpers were not allowed for export, at least into Canada, so that left the thick pumpers.
VIN# is P 18139 5
Body # is EO 67692
Engine# is KJ 11168-8
Gear Box JC6332
and that's the way it appears on the aluminum info plate inside the engine bay with the spaces.
My plate is mounted on the left fender-well, not below the solenoid switch on the fire wall.
Last edited by JeffR1; Jun 10, 2018 at 04:05 PM.
Jeff that is odd. The slim line cars were not even in production at that time. If ordered direct from Canada your car should have been badged MK2. Have you gotten a certificate? I'll bet you anything that car was a transfer from stock in NJ or a western Port in the US. I will run your vin Tuesday and see what the build sheets say. Thanks for sharing--will let you know what I find! What does the boot badging look like?
Wish I had one, you could have it , take a pic of the relevant bit if poss.






