Sledwrecker Posted July 21, 2020 Report Share Posted July 21, 2020 I’ve installed a tekonsha P2 brake controller in my 2018 edge but I’ve ran into an issue. I followed instructions from etrailers write up on a 2016 and tapped into the cold brake wire which is a purple with white stripe. On the first drive the fuse for the brake lights blew. I didn’t know it until I stopped the car, put it in park and it wouldn’t shift back into gear. If the brake light fuse blows the shifter solenoid won’t activate. Anyway, I disconnected the red brake controller wire from the brake wire and haven’t had an issue since. Can someone help me confirm which wire the red brake controller wire should be connected to on the edge?? Red wire connects to cold side brake wire. https://www.etrailer.com/tv-install-tekonsha-prodigy-p3-brake-controller-2016-ford-edge-90195.aspx Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted July 21, 2020 Report Share Posted July 21, 2020 (edited) Everyone I've seen is plug and play. No taping required. https://youtu.be/ZnQk9NrD2oM Edited July 21, 2020 by enigma-2 Quote Link to comment Share on other sites More sharing options...
Sledwrecker Posted July 21, 2020 Author Report Share Posted July 21, 2020 (edited) Thanks enigma, this is for a brake controller wired to a 7way for trailer brakes. Edited July 21, 2020 by Sledwrecker Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted July 21, 2020 Report Share Posted July 21, 2020 (edited) Think I misunderstood. Your looking to add a 7 plug connector. According to ertrailer.com the only thing they offer for the 2018 is a cordless model. https://www.etrailer.com/question-320753.html I'd write and ask them. They seem to be the experts on the subject. https://www.etrailer.com/product_askexpert.aspx?Product_Code=C57674&QSource=question-320753 Edited July 21, 2020 by enigma-2 Quote Link to comment Share on other sites More sharing options...
Sledwrecker Posted July 21, 2020 Author Report Share Posted July 21, 2020 Yes, correct a 7-way with a Tekonsha P2 controller. I've already wired everything in I just need a confirmation on which brake sensor wire to tap into. I emailed them have a feeling they will tell me the purple / white.. lol Quote Link to comment Share on other sites More sharing options...
Sledwrecker Posted July 30, 2020 Author Report Share Posted July 30, 2020 etrailer wouldn't comment directly on exactly which colored wire to chose but he did instruct me to test the brake light switch with a light tester. I came up with purple / white stripe again. I don't leave the controller plugged in all the time, only when towing. Subsequently I tuck the disconnected harness up behind the dash near the hood release lever at the lower kick panel. I suppose it's possible a pin may have grounded against something metal under the dash while the vehicle was in motion. I've cleaned up the wiring and found a better place to position the harness. So far no reoccurring issues. Quote Link to comment Share on other sites More sharing options...
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