Switch 12V Constant Running to Reverse Light Pin on 7-Way to 12V Pin to Charge Towed Vehicle Battery
Question:
2008 Leisure Travel Vans Serenity built on 2007 Freightliner Sprinter 3500 Chassis - Towed 2017 Fiat 500 Pop I have installed all of the equipment needed to tow a 2017 Fiat 500 including rm-156-25 in the towed. On the RV, the pin out on the 7 way has a wire going into the charge line position of the 7 way plug, however it does not have 12v with the chassis engine running and not running, and I cannot locate where it goes to in the chassis. There is an unused line on the 7 way labeled as the reverse lights, and this has 12v constant, engine running and not running. Can I disconnect this 12 volts from the reverse lights pin and connect it to the charge line pin to provide the charge line to the towed with 12v?
asked by: Scott R
Helpful Expert Reply:
The previous owner of your 2008 Leisure Travel Vans Serenity could have wired the 12V wire to the reverse light pin. As such, a possible solution to your problem could in fact be to relocate that circuit to the 12V pin.
From there, you can see if the # RM-156-25 is actually supplying power to your battery.
If this doesn't solve your problem or causes any other complications, let me know and I will assist you further.
Product Page this Question was Asked From
Roadmaster Battery Charge Line Kit for Towed Vehicles
- Accessories and Parts
- Tow Bar Wiring
- Battery Charge Line Kit
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Roadmaster Battery Charge Line Kit for Motorhomes
- Shop: Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights
- Q&A: What 7-Way Pin Does Charge Line of # RM-156-25 Get Wired To
- Q&A: Is the Blue Ox 7-Wire to 6-Wire and Roadmaster 7-Wire to 6-Wire Umbilical Cord Interchangeable
- Q&A: Roadmaster Battery Charge Line Kit for Towed Vehicles & 2021 Chevrolet Equinox
- Q&A: Can 6-Way on Towed Vehicle be Hardwired to 7-Way Connector on RV
- Video: Roadmaster Battery Charge Line Kit Installation - 2022 Chevrolet Equinox
- Search Results: charge line kit
- Shop: Vehicle Tow Bar Wiring
- Shop: Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Video: SMI Stay-IN-Play DUO Braking System Installation - 2015 Chevrolet Equinox
- Video: Demco SBS Stay-IN-Play DUO Supplemental Braking System Review
- Shop: Vehicle Tow Bar Brake System
- Article: Trailer Wiring Diagrams
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Q&A: Choosing Between the Brake Buddy Select 3 and the Blue Ox Patriot Supplemental Braking System
- Video: Blue Ox Patriot Portable Braking System Installation - 2022 Ford F-150
- Shop: Base Plate for Tow Bar
- Search Results: base plates
- Video: Roadmaster Battery Charge Line Kit Review
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: tow bar
- Q&A: Which is Better Roadmaster or Blue Ox Tow Bar
- Video: Roadmaster Tow Bar Wiring - Splices into Vehicle Wiring - RM-15267 Review
- Search Results: rm~88400
- Shop: Trailer Wiring
- Q&A: Demco vs. etrailer Base Plate For 2024 Ford Maverick
- Search Results: rm~156~25