Extra Parts Needed to Install Roadmaster Even Brake in 2018 Ford Edge

Updated 02/24/2020 | Published 09/23/2018

Products Featured in This Question

Roadmaster Stop Light Switch Kit

(710)

$44.42

Roadmaster Brake-Lite Relay Kit for Towed Vehicles

(779)

$41.97

Question:

I’m installing an Even Brake braking system in a 2018 Ford Edge. I installed the brake lite relay per Instructions “B” since the Edge uses push button start. Instructions for part B install say the green wire is not to be used. The install instructions for the ICX transmitter says to hook the green wire from the brake lite relay to terminal 1 with a spade connector if brake relay is used. Any help here is appreciated.

asked by: Mark G

Expert Reply:

I forwarded this to our tech contact at Roadmaster and here is his response:

When the instructions say the green wire for the ICX (which is the common wire used on the relay) it is referring the the brake signal output. So when wiring to the B set of instructions, it needs to tie into the blue wire.

HOWEVER -- the 2018 Edge require a battery disconnect so you cannot/will not be able to use the brake light relay part # RM-88400. Instead, this vehicle needs a stop light switch kit # RM-751475.

expert reply by: Jameson C

Ron R.

2/20/2020

I have a 2018 Edge SEL 3.5l Ti-VCT V6, I talked to one of your techs he told me I had to order #766 battery disconnect, plus # 153789 Smart diode kit, plus a #751475 Break Switch all to be installed into the Edge, Ford says to disconnect the negative cable from the battery , the tech told me to disconnect the positive, The process he suggested as follows, close all doors set tranny to neutral then disconnect positive wire

Chris R.

2/21/2020

Roadmaster does state that their Battery Disconnect should be used on the positive terminal and you're not alone in having this question, as we have found many vehicle makes that state to disconnect the NEGATIVE terminal in the manual. It's written this way in the manual as a safety measure, as they just don't want people messing with the positive terminal if possible. This may have been a concern with older batteries but it's just not a problem on modern units. We have talked with Roadmaster many times about this and they have assured us over and over that it's perfectly okay to use the positive terminal and it is necessary for proper operation of the Battery Disconnect.

Ron R.

2/22/2020

Thank you