Why Does Demco DUO Braking System Need to Wire to Tow Bar Lighting of Vehicle
Question:
HI, As Im installing the rm-155 Roadmaster Tail Light Wiring Kit with Bulbs that is independent from the cars electrical system, so, does it need to be connected to the sm99251 Demco SBS Stay-IN-Play DUO Supplemental Braking system as shown in your video? Im figuring that the RV will control all lights on the back of the Sonic Brake, Turns, Running. If I understand the video correctly, the connection allows the sm99251 to operate the brake lights when applied. Using the rm-155, the RV will perform this function, correct? Thanks,
asked by: Jack M
Helpful Expert Reply:
I attached a wiring diagram that details how the Demco DUO part # SM99251 installs with the tow bar wiring kit you are installing part # RM-155. I also attached an install video for both kits as well. The connections that the DUO makes to the tow bar wiring are to allow it to know when you are applying the tow vehicle brakes basically.
Products Referenced in This Question
Roadmaster Tail Light Wiring Kit with Bulbs
- Tow Bar Wiring
- Bypasses Vehicle Wiring
- Bulb and Socket Kit
- Universal
- Tail Light Mount
- Roadmaster
more information >
Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Tow Bar Braking Systems
- Brake Systems
- Proportional System
- One Time Set-Up
- Fixed System
- Power Assist Brake Compatible
- Hydraulic Brakes
- Demco
more information >
Product Page this Question was Asked From
Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Base Plates
- Removable Drawbars
- Twist Lock Attachment
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: How to Connect Power Wire for Demco Stay-IN-Play DUO on a 2019 Ford Flex
- Q&A: How to Install the Monitor Light from the SMI Stay-IN-Play on a 2016 Cadillac SRX
- Video: SMI Stay-IN-Play DUO Braking System Installation - 2014 Honda CR-V
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: charge line kit
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Brake Buddy Stealth Supplemental Braking System - Proportional
- Q&A: Roadmaster Base Plate Kit Installation Time Frame On a 2021 Chevrolet Colorado
- Search Results: diodes
- Shop: Roadmaster Crossbar-Style Base Plate Kit - Removable Arms
- Shop: Base Plate for Tow Bar
- Shop: Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Shop: Roadmaster Battery Disconnect with Switch for Towed Vehicle w/ Flat Tow Brake System - Gas
- Q&A: Roadmaster Parts For Flat Towing 2023 Ford Edge ST
- Shop: Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional
- Search Results: demco replacement parts
- Search Results: air force one brake system
- Search Results: demco actuator
- Search Results: demco rv
- Video: Review of Demco Tow Bar Braking Systems Parts - Second Vehicle Kit - SM6270
- Video: Review of Demco Tow Bar Braking Systems - Reinstall Kit - SM99226
- Video: Review of Demco Tow Bar Braking Systems - Towed Car Quick-Connect Kit - SM6214
- Video: SMI Air Force One Braking System Installation - 2019 GMC Canyon
- Video: Demco SBS Towed Car Conversion Kit Review
- Shop: Replacement Car-Side Male Quick Disconnect Kit for Roadmaster BrakeMaster Air Line
- Shop: Trailer Wiring
- Video: Hopkins Endurance RV Trailer Connector Installation - 2013 Tiffin Phaeton
- Q&A: Specifications for Roadmaster Diodes # RM-690 and # RM-790 for Use on a Semi-Trailer
- Q&A: Demco SBS Stay-IN-Play DUO Supplemental Braking System Wiring Diagram
- Q&A: Does LED Indicator Light of SMI Air Force One Light Up When Vehicle isn't Connected