2004 E53 X5 4.4i Rear Fog light Install...COMPLETE!

[Ricky Bobby]

Originally Posted by X5 Meister

Remind us again why you don't want to use the TCM ? b/c you could just buy it separately from the same guy and he'll probably make you a good deal:

Trying to save the $160 if I can, because its a great mod to do if you already have the OE hitch kit installed (which a lot of members do) but there are also a lot of members like myself who don't have an OE hitch kit,

And if possible I'd like to make an alternate DIY for members who want to run their rear fogs, have them operate functional with the switch like they were installed from the factory, and who might not want to spring the extra 160 for the TCM kit to install this.


Obviously this will take some trial and error with Terminator and his wiring diagrams but if it can be done it's something I'd definitely like to be able to share with the community. Loved having rear fogs on my old VW MK4 and my moms Q7, its such a "euro mod" (which I only use when appropriate btw!).



**Terminator I want to also note I am not adverse to running the 18 gauge wire from the LCM to the rear if I have to (if this X609 connector thing doesn't work out), as long as I can bypass the TCM and save fellow members some money here!**


EDIT: I think I have the X609 Terminator, and yes it looks like its just under the cover for the battery, this is a pic I found from Bavauto (X609 is the red arrow pointing to it):

Whenever you get a chance if you could find out which type of male or female pins/contacts I could use then I would just plug one into each pin you suggested for left/right and run each light wire separate direct to the housing in the tailgate.

[TerminatorX5]

Originally Posted by Ricky Bobby

Trying to save the $160 if I can, because its a great mod to do if you already have the OE hitch kit installed (which a lot of members do) but there are also a lot of members like myself who don't have an OE hitch kit,

And if possible I'd like to make an alternate DIY for members who want to run their rear fogs, have them operate functional with the switch like they were installed from the factory, and who might not want to spring the extra 160 for the TCM kit to install this.


Obviously this will take some trial and error with Terminator and his wiring diagrams but if it can be done it's something I'd definitely like to be able to share with the community. Loved having rear fogs on my old VW MK4 and my moms Q7, its such a "euro mod" (which I only use when appropriate btw!).



**Terminator I want to also note I am not adverse to running the 18 gauge wire from the LCM to the rear if I have to (if this X609 connector thing doesn't work out), as long as I can bypass the TCM and save fellow members some money here!**


EDIT: I think I have the X609 Terminator, and yes it looks like its just under the cover for the battery, this is a pic I found from Bavauto (X609 is the red arrow pointing to it):

Whenever you get a chance if you could find out which type of male or female pins/contacts I could use then I would just plug one into each pin you suggested for left/right and run each light wire separate direct to the housing in the tailgate.

that plug is indeed the X609.

Pin 10 is right rear fog light feed coming from the LCM

Pin 12 is left rear fog light feed coming from the LCM

Once you get your euro switch S8 from your supplier and wire it up, you can try to turn on the rear fog light and test the pins in X609 to see if there is voltage for the rear fog lights.

as an alternative, you may try to ground the pin 45 of the LCM and see if pins 10 and 12 in the X609 have the 12 VDC.

I am checking into the pins and plug for the X609, once i find which ones, i will post the info...