How to Determine if Flat Towing 2005 Dodge Ram 1500 Requires Brake Lite Relay
Question:
I plan on flat towing my 2005 Dodge Ram 1500 4X4 behind my 2008 Tiffin Allegro Bus. I already have a Blue Ox tow bar so now I need to wire the towed vehicle for brake and turn signal lights. Also I will be using the RVi auxiliary brake system. I plan on ordering the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267. My question is with this set-up will I need to also use a brake light relay RM-88400? Thank you.
asked by: John D
Expert Reply:
Here's how to determine if your 2005 Dodge Ram 1500 will require you to install the Brake Lite Relay # RM-88400:
Is a Relay Required?
To determine if a brake light relay is needed to properly wire your vehicle to be towed, answer the following questions.
Are you using a supplemental braking system that depresses the brake pedal in your towed car?
No - You do not need a brake light relay.
Yes - You may need a brake light relay. Continue on to the next question.
Do the brake lights on your towed car illuminate while the engine is off?
No - You do not need a brake light relay.
Yes - You may need a brake light relay. Continue on to the next question.
Do your towed car's brake lights act as both the brake signals and the turn signals?
No - You may need a brake light relay. Continue on to the next question.
Yes - Your towed car has a combined lighting system. You will need a brake light relay to ensure proper activation of its signal lights.
Does your towed car have separate brake lights and turn signals?
No - Your towed car has a combined lighting system. You will need a brake light relay.
Yes - Your towed car has a separate lighting system. You may need a brake light relay. Continue on to the next question.
Are you wiring your vehicle with a six-diode kit or a TowDaddy custom wiring harness?
No - You will need a brake light relay to ensure proper activation of your towed car's signal lights.
Yes - You do not need a brake light relay.
Product Page this Question was Asked From
Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Tow Bar Braking Systems
- Brake Light Relay
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Shop: Vehicle Tow Bar Wiring
- Shop: Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Video: Roadmaster Brake-Lite Relay Kit Installation - 2022 Ford Ranger
- Video: Roadmaster Universal Diode Wiring Kit Installation - 2021 Jeep Wrangler Unlimited
- Shop: Trailer Wiring
- Search Results: battery isolators
- Search Results: battery disconnect switch
- Q&A: Parts Needed to Flat Tow 2020 Chevy Colorado behind Motorhome
- Q&A: Easy to Use Flat Towing Setup for 2021 GMC Canyon
- Shop: Roadmaster Diode 7-Wire to 4-Wire Flexo-Coil Wiring Kit
- Shop: Seaflo Battery Disconnect Switch for Boats and RVs - On/Off - 900 Amps
- Shop: Seaflo Encased Battery Disconnect Switch with Key for Boats and RVs - 1,250 Amps
- Search Results: rm~88400
- Shop: Hopkins Custom Tail Light Wiring Kit for Towed Vehicles
- Video: Roadmaster Brake-Lite Relay Kit Installation - 2006 Jeep Liberty
- Article: Flat Towing Package for 2005-2007 Jeep Liberty
- Video: Hopkins Tail Light Wiring Kit Installation - 2006 Jeep Liberty
- Video: Roadmaster Tow Bar Braking Systems - Brake Light Relay - RM-88400 Review
- Shop: Roadmaster BrakeMaster for RVs w/ Air or Air-Over-Hydraulic Brakes - Proportional
- Search Results: rv braking system
- Search Results: brake light diode
- Search Results: diode
- Q&A: Solution for 2020 Ram with Flat Towing Braking System that Presses Brake Pedal for Turn Signals
- Q&A: Wiring a Camper Shell Third Brake Light on a 2017 Chevrolet Silverado
- Video: Roadmaster Brake-Lite Relay Kit Installation - 2004 Jeep Liberty
- Video: Roadmaster Brake-Lite Relay Kit Review
- Shop: Base Plate for Tow Bar
- Q&A: How to Run Air Line on Motorhome to Activate Roadmaster BrakeMaster System
on Tow Bar Braking Systems
