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Trailer wiring

Posted: Sun Aug 13, 2017 5:47 pm
by philofab
Does anyone have the wiring connector location or pinout for trailer lighting converter box? Is it the 4 pin plug above the drivers side battery taped to the loom?

Re: Trailer wiring

Posted: Tue Aug 15, 2017 11:53 am
by philofab
Ended up using this:

http://curtmfg.com/part/59190

To wire up a four flat trailer plug on the car. Ignore the 3 wire to 2 wire thing. On these cars you don't use the brake input. Honestly any converter would work. I'm not sure how tough the turn signal switch is so I'd recommend against wiring directly.

The wiring is located above the battery on the passenger side. Wire colors are standard GM (same as American trailer UL color coding). Yellow for left, green for right, brown for running lamps.

Re: Trailer wiring

Posted: Tue Aug 15, 2017 12:09 pm
by philofab
Photos of install wiring.

Re: Trailer wiring

Posted: Tue Aug 15, 2017 12:09 pm
by philofab
Power wiring

Re: Trailer wiring

Posted: Tue Aug 15, 2017 12:10 pm
by philofab
Seperated wires are the light signals.

Re: Trailer wiring

Posted: Tue Aug 15, 2017 7:36 pm
by Sanford
Since you have added trailer wiring, I assume you have a trailer hitch. Do you have any pictures that were taken during the hitch installation, if my assumption is correct? I don't tow with a car much since I have an old 3/4" Ford for towing duty, but it is nice to have the ability to tow a light trailer.

David

Re: Trailer wiring

Posted: Sat Aug 19, 2017 11:46 am
by philofab
Sanford wrote:Since you have added trailer wiring, I assume you have a trailer hitch. Do you have any pictures that were taken during the hitch installation, if my assumption is correct? I don't tow with a car much since I have an old 3/4" Ford for towing duty, but it is nice to have the ability to tow a light trailer.
There is a post on here and a better post on the G8 board with info and good photos.

I didn't bother with photos.

Re: Trailer wiring

Posted: Tue Jul 09, 2019 3:32 am
by smwalker
This seems to be for the 11-13 only, not finding a reference to this plug in the 14+ models.
Connector pictured above is X456 located above the battery - #5 in this pic:

Image

Not able to find any information on what the wires inside it are. That would be useful if anyone has mapped what wires are in there.

Re: Trailer wiring

Posted: Tue Jul 09, 2019 8:33 am
by Ilikemtb999
My 14 came with a receiver and a 4 pin installed. I can snap pictures of the install.

Re: Trailer wiring

Posted: Tue Jul 09, 2019 3:49 pm
by SSpeedracer
Ilikemtb999 wrote: Tue Jul 09, 2019 8:33 am My 14 came with a receiver and a 4 pin installed. I can snap pictures of the install.
Please upload pictures. Thanks.