vega Posted January 24, 2018 Report Share Posted January 24, 2018 Hello all, trying to splice in a trailer harness. Working on the left light assembly which has five wires. Black, red, orange, green and brown. I am assuming that black is ground. Can anyone tell me what each is for? Need to pin down the turn signal, brake, and parking wires. I did a probe test with a 12 volt meter but I think the module is giving me weird readings. Any help appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
akirby Posted January 24, 2018 Report Share Posted January 24, 2018 You’re not using a kit that’s plug and play? Quote Link to comment Share on other sites More sharing options...
vega Posted January 24, 2018 Author Report Share Posted January 24, 2018 You’re not using a kit that’s plug and play? No. It's actually for a bike rack and I thought I'd make it pretty with some lights on the cheap. Quote Link to comment Share on other sites More sharing options...
TheWizard Posted January 24, 2018 Report Share Posted January 24, 2018 Curt Industries makes a harness adapter which is plug-and-play for your 2015. It plugs into the two tail light harnesses, has the necessary controller to convert the 3-wire configuration to 2-wire and provides a standard 4-pin trailer plug for output. It's only $42 at Car-ID (their item #I68942645). That would be the safest way to provide output to your rack since it doesn't involve any cutting or splicing and it wouldn't damage any electronics. I don't have the schematics for a 2015 and the colors you mention don't match the 2013. Since your meter gave inconclusive readings, you could try the old fashioned way... remove the lamp, get a 9-volt battery, connect the ground side to where the black wire was (safe to assume that's ground) then use a short piece of wire to test each of the other connections to see what they do (running lights, turn signal, brake, and backup). A 9-volt battery should be safe for most electronics but I take no responsibility for any damage. 1 Quote Link to comment Share on other sites More sharing options...
vega Posted January 25, 2018 Author Report Share Posted January 25, 2018 Thanks for the information. Given that these are OEM led lamps, I will proceed with caution and get the kit since it has a controller which should protect the circuits. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.