Mystery wire

[UK Muppet]

Can someone please help identify the wire that has no connection, it is in the loom that runs under the centre panel and the connection point that baffles me is where the left side loom connects . Its a red wire with dark green tracer, there is a red wire with light green in the loom that connects to the side loom but there is no red/dark green that I can find and I cannot see it in the wiring diagrams I have looked at. On the right hand side there is a similar issue where 2 wires red/dark green are connected on the same side of a double bullet connector with no wire to connect to it from the side loom.
After trying to trace the wire with a multimeter, there is no connection to a fuse or switch but there is an unconnected red/dark green wire behind the centre panel.
Are they just spare wires for something like fog lights?

[Gfhug]

Tony, it’s not unusual to find wires going nowhere. Please have a look at the wiring diagrams in the knowledge and technical section. With a bit of investigation you may find where and what it is for. Certainly there were wires for such items as front fog lights that were never fitted but the wiring was there.

Geoff

[UK Muppet]

Thanks Geoff, I have looked at most of the wiring diagrams in the knowledge base including S1 and S3 and I cannot find this colour of wire on any. It can stay as a spare if I add something in the future.

[AshM]

Tony

I have exactly the same on my 1970 S2 (of which I have 51 years guaranteed provenance).

Came across it when doing some restoration work a while ago. On the basis that everything works on my car, I concluded it must be for something I do not have!

cheers
Ash

[Turnip]

Years ago I painstakingly compiled a list of all the wiring colours.
In it there is:
Red,Green,"Bulb failure unit to right-hand-side and rear lamps"

I have no idea what that is though, and can't remember where I was getting the description for each colour from. I suspect it was probably the official workshop manual.

Simon

[Gfhug]

Simon, are those “standard” colours brought in later for all cars? Triumph, Jaguar, Ford, etc.
When I checked through S2 colours, excluded things like LHD, air con, ejector seat, etc. I noted:

Red/green - Handbrake and brake fluid switch to indicator

I didn’t see that as dark green according to the diagrams. Whether that helps or at least gives something to check along and eliminate

Geoff

[Turnip]

Now you mention it Geoff that colour "standards" thing does sound familiar. Maybe that's why I never used the list in action.

[MarekH]

From memory, it's something like a sidelight or side repeater connection option that was only used for the German market. This has been covered on the forum before, so look carefully at all of the circuit diagrams. On one of them you'll find a doubled up red/black or red/green wire which bypasses one of the circuits, but I'm a s3 owner so wouldn't have bothered memorising this in any great detail.

kind regards
Marek

[UK Muppet]

Thanks Marek and thanks Ash. I think Ash has the right answer, its for some option the car does not have.
I will ignore it unless something fails to function at the rear of the car when its all back in place.
Regards
Tony