How to Determine if 7-Way on Motorhome Has Combined or Separate Turn Signals from Stop Lights
Question:
Wiring a 2005 GMC Sierra as a toad behind a 2003 Monaco Knight. Both vehicles have separate systems, but I am uncertain about the 7 pole plug that is mounted on the rear of the MH. I have had it replaced more than once by dealers that just could not get it right, so I am uncertain if it is still separate or if it is combined. Until now I have been using a temporary trailer light kit that is wired into a 6 pole female receiver on the front truck bumper. This plug is then fed by an umbilical coming out of the 7 pole on the MH. Maybe that will tell you which it is?????
asked by: Steve P
Expert Reply:
It should be combined since that is standard trailer wiring for a 7-way which is also what's used with flat towing setups. Your only way to know with absolute certainty will be to use a circuit tester like # PTW2992 on all of the pins of the 7-way and then compare that to the 7-way diagram I attached.
Products Referenced in This Question
Product Page this Question was Asked From
Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Diode Kit
- Universal
- Tail Light Mount
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: What is the Estimated Installation Time for Firestone Ride-Rite Air Bags on a 2006 Ford F-250
- Article: Trailer Wiring Diagrams
- Article: Roadmaster Vehicle Specific Base Plates
- Article: Must-Have Flat Towing Components
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Comparing Equa-Flex and Road Armor Equalizers For 2000 Forest River WIldwood W/ 5200lb Axles
- Q&A: Equalizer Replacement Options for Dexter 13-122 Equalizer
- Q&A: Choosing Between the Brake Buddy Select 3 and the Blue Ox Patriot Supplemental Braking System
- Q&A: Recommended Flat Towing Set Up for a 2019 Chevy Colorado
- Q&A: Recommended 16' Mesh Tarp for Dump Trailer
- Q&A: Replacement 12 inch Brake Assemblies for Dexter 36-89 on Trailer
- Article: Best Vehicles to Flat Tow Behind an RV
- Article: Flat Towing Package for 2007-2018 JK Jeep Wrangler and Wrangler Unlimited