Help on Foglight wiring / Trailer

[sandor@digitec]

here is my issue..
in the netherland we need when using a trailer Reverse light and foglight.
the reverse light i found in the cable loom , right side c column.
the Foglight is supposed to be also there but can
NOT find it, i can trace it from the origin (left side foglight White/blue)
goes into the boot (still white/blue) )
after this its a mistery! , can not trace it anywhere.
anyone have a shematic on where it goes? .
according to the trailer electronics its supposed to be white
lots of white cables but none are for the foglight..
help please..

 

[sandor@digitec]

Fixed...
if anyone is interested , the cable you need is either white or Red depending on year..
its behind backseat corner c column.
The Light blue is for reverse light
Red or White is the Foglight.
this needs to be cut and switched if you have a trailer otherwise you "blind"yourself.

 

[Watts_Up]

I was wondering if you have a pre-installed tow hitch shown on this video:




Or an aftermarket, such as the Stealth Hitches which has a 4 wires plug,
so for the 7 wires plug you need to be a little bit creative:



I would be interested to see the wire diagram standard you use?
For the US standard the white color represent the ground
and there is no fog light, only electric brake.

 

[sandor@digitec]

yeah thats the US version , we use 13 pin
basicly its all Lights incl fog and reverse and a constant 12V and a switched 12V thats for charging trailer battery or powering RV.
but cant use that on a Tesla.
heres a install manual from a Typical trailer hoog from EU.

https://catalogue.ecs-electronics.nl/DownloadFile.aspx?directlink=TS001DL/TS001DL.pdf

the hook itself : Trekhaak Tesla model 3 vanaf 2019 kopen bestel hier u trekhaak

 

[delavandaag]

Sandor, I have a comparable wiring kit as you have. However, I found two light blue wires in the area of the right side C column. See the attached picture. The left one is thinner than the right one. Can you tell me which is the correct one?

And do you know which years of build have the red and which the white wire for the fog light?

 

[delavandaag]

The thinner light blue wire is for the backup/reverse lighting. It took me some hours reviewing the wiring diagrams of the Model 3 to find out. The fog light is white and thin as well, but there are multiple white thin wires at the right side C column and I have not yet been able to assess which one the correct one is.