How to Power Demco Wireless Coachlink Braking Monitor in RV Without 12V Outlet

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Question:

Is there other options to power the Coachlink SM99945 monitor other than 12 volt plug? My RV doesnt have the 12 volt power plug. It has HDMI outlets only on the dash.

asked by: Randy C

0

Expert Reply:

You will have to use a 12V outlet to power the Demco Wireless Coachlink Braking Monitor # SM99945. Since you don't already have one you can add it using the 12 Volt Outlet Kit, 20 amps # RM-9332.

expert reply by: Robin H

0

Answer 1

I was able to verify with Demco the red wire on the Coachlink #SM99945 for the Demco Stay-IN-Play #DM86VR is positive and the black is negative.

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Answer 2

Hey Joshua, Demco unfortunately only offers the Coachlink monitor #SM99945 with a 12v cigarette style plug currently. If your motorhome doesn't have a 12v cigarette style port to plug this in then you can install one with part #RM-9332.

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Answer 3

This is actually a fairly common issue with the Demco Stay-IN-Play #DM86VR, and there are solutions. Since the turn signals and brake lights normally use the same wires, they use variable voltage to activate each circuit. The system is seeing a…

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Answer 4

Hey Dalton, the trailer wiring harness installs are not known to cause hyperflashing unless maybe something was installed wrong. Does the trailer wiring actually function too? I would check to make sure you have the fuse installed in the harness and…

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Answer 5

To wire in the Coachlink transmitter from the Demco Stay-IN-Play DUO Supplemental Braking System #DM86VR you'll connect the red wire from the transmitter to the cold side of the brake light switch, which would be a white/brown wire for your…

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Answer 6

When you are hardwiring a trailer brake controller like the Prodigy P2 #90885 the red wire connection that provides the triggering signal to the controller should be made to the wire on the COLD SIDE of the brake light switch circuit. This is the…

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Answer 7

The only thing I can think of that could cause an issue like this is that you have indicator light wired incorrectly to something that has power when not connected to the motorhome. In the typical setup you would connect the power for the indicator…

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Answer 8

Hey Craig, Not quite sure which video you're referring to but I'm assuming you're trying to install a trailer brake controller? If this is the case then I wouldn't follow the video on the wire color and I would test each wire with a…

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Answer 9

Normally you can find the brake light switch under the dashboard at the top of the brake pedal. There could be a number of wires attached to the switch so you can use a tester like part #PTW2993 to test the wires. Since the auto manufacturers can use…

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Answer 10

For your 2021 Jeep Wrangler, you actually can not splice into the brake wire. For this reason, you will want to use the Roadmaster Stop Light Switch Kit #RM-751490 instead. This kit will connect to an inline fuse to your vehicles positive terminal on…

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Answer 11

The OEM brake switch on your 2024 Jeep Wrangler is actually not usable for this purpose. You will instead need to use the Roadmaster Universal Stop Light Switch Kit #RM-751000. This will tap into the towed cars brake switch and allow the Invisibrake…

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Answer 12

For your 2018 Jeep Wrangler Unlimited Sahara JL flat tow wiring, you will need the Roadmaster Stop Light Switch Kit #RM-751490 which will communicate with your motorhome's brake monitoring system that your Jeep brakes are being applied. This is…

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How to Power Demco Wireless Coachlink Braking Monitor in RV Without 12V Outlet

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