2002 Audi Allroad Quattro Tail Light Wiring Diagram 2002 Audi Allroad Quattro Tow Hitch Wiring

Cardenas Turner · 06-10-202005:52 PM

06-10-202005:52 PM #one

Norm01 is offline

Registered Member One Ring

Tail calorie-free wiring diagram

Hello all, new here. I have a 2013 A4 S-line that I am trying to wire to tow a small trailer. I am wondering if someone has the rear tail lights wiring diagram, I�ve done a lot of internet research and it seems colour codes are all over the place. This is a Canadian model if that matters. I am using a module that draws power from the battery and converts iv wires to three. I ran into issues on the left side as a ane wire (grey/white) seems to carry both the left turn signal and brake. If it helps the 5 wires for the left are grayness/white, gray/blackness, green, black and finally brown. Whatsoever help would be appreciated.

06-10-202008:22 PM #2

Smac770 is offline

Senior Member Four Rings

Tail lamps are different for:
- sedan vs wagon
- incandescent vs LED
- B8.0 vs B8.5 - you mention B8.5
- Us vs Euro - Canadian, so likely US spec with the side marking lamp?
- inner vs outer lamp assembly - I'g bold the outer given the context?
And so information technology would exist easier if the module in question was more thoroughly identified.

The wiring diagram document, forth with all the repair manuals, are on erwin.audiusa.com (or erwin.audi.com, not certain which Audi of Canada would say to utilise).

Allow'due south assume sedan, LED, B8.5, Us spec, outer left associates. Because your wiring colors match that. And sure, the gray/white lights up the M56 light "bulb".

chocolate-brown - ground
green - M37 side mark
gray/white - M56 restriction/plow
gray/black - M4 tail
black - M16 opposite

2009 A4 Avant 2.0T quattro Prestige, 234k miles

06-eleven-202004:24 AM #4

Norm01 is offline

Registered Member One Ring

Quote Originally Posted by Smac770 View Post

Tail lamps are different for:
- sedan vs wagon
- incandescent vs LED
- B8.0 vs B8.5 - you mention B8.5
- United states of america vs Euro - Canadian, so probable U.s. spec with the side marker lamp?
- inner vs outer lamp assembly - I'thousand bold the outer given the context?
So it would be easier if the module in question was more thoroughly identified.

The wiring diagram document, along with all the repair manuals, are on erwin.audiusa.com (or erwin.audi.com, not sure which Audi of Canada would say to use).

Allow's presume sedan, LED, B8.5, Usa spec, outer left assembly. Because your wiring colors match that. And sure, the gray/white lights up the M56 light "seedling".

brown - ground
green - M37 side marker
gray/white - M56 brake/plough
gray/blackness - M4 tail
black - M16 opposite

Thanks, that helps a lot and confirms my suspicion that brake/turn are on the same wire. Would you be so kind equally to identify the right side wiring for me.

The trailer modules convert 4 wires to iii and usually require a restriction, tail, left and right turn input. The three outputs are tail, and they combine restriction and plough both sides. I believe the fashion to wire this is to merely leave the restriction input asunder, the Audi combined restriction and turn should do the chore. I volition try it and report back.

06-11-202005:44 AM #5

Smac770 is offline

Senior Member Four Rings

Right side is same pin numbers, but yes, different wire colors:

chocolate-brown - basis
black/yellow - M38 side marker
grey/blueish - M57 brake/turn
grey - M2 tail
blackness/white - M17 reverse

The machine already produces brake+left turn, restriction+right turn, and tail outputs. You virtually don't demand a "converter". Though I don't know if the trailer calorie-free tech is the same, and you'd probably desire a solution to provide 12v so your not extra loading the J393 output.

2009 A4 Avant two.0T quattro Prestige, 234k miles

06-11-202005:53 AM #six

Smac770 is offline

Senior Fellow member Four Rings

You might notice this video relevant:
https://youtu.exist/Xpb3tse3yOg

Going to the production folio for that harness, it has a restriction input also, only he simply didn't hook it up. So if yours is similar in operation, so not hooking up the brake input should be fine.

2009 A4 Avant 2.0T quattro Prestige, 234k miles

06-11-202011:57 AM #seven

Norm01 is offline

Registered Fellow member One Ring

Quote Originally Posted by Smac770 View Post

Right side is same pin numbers, but yes, different wire colors:

brown - basis
black/yellow - M38 side marker
grey/blue - M57 brake/turn
grayness - M2 tail
blackness/white - M17 reverse

The car already produces brake+left turn, brake+right plough, and tail outputs. You nearly don't need a "converter". Though I don't know if the trailer lite tech is the same, and you'd probably want a solution to provide 12v so your not extra loading the J393 output.

Thank you that solves all my problems. I volition basically exit the restriction input disconnected and use the module simply to power the trailer lights from the bombardment and not introduce an actress load on the car�southward wiring.

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