Parts Needed to Activate 12 Volt Charge Circuit of 7-Way on 2022 Tiffin Wayfarer on Sprinter Chassis
Updated 04/28/2025 | Published 01/08/2024
Products Featured in This Question
Question:
Hi there, I have a 2022 Tiffin Wayfarer which has the Mercedes Sprinter Chassis. I have found that the 7 pin is NOT charging my towed car. We towed the same car with another RV which keeps the towed vehicle charged, so we know this problem has nothing to do with the towed vehicle. Is there a install Kit that would result in the 7 pin charging my tow vehicle? Thanks,
asked by: Chris T
Expert Reply:
This is a pretty common issue as the 12 volt accessory/charge circuit is not always active on vehicles with OEM 7-ways. The solution is to run 10 gauge wire like part # 10-1-1 (sold by the foot) through a breaker like part # 9510 between the 1:00 pin of the 7-way and the positive terminal of your Sprinter battery.
Product Page this Question was Asked From
Wiring Kit for 2, 4, 6, and 8 Brake Electric Trailer Brake Controllers
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Continue Researching
- Shop: Trailer Wiring
- Shop: Vehicle Tow Bar Brake System
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord
- Shop: Curt RVibrake 4 Portable Flat Tow Brake System - Wireless Monitor - Proportional
- Shop: Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Brake Controller
- Video: Deka Butt Connectors Detailed Breakdown
- Q&A: 7-Way Recommendation for 2006 Dodge Ram 3500 to Bypass TIPM
- Q&A: 12 Volt Hot Lead Stopped Working on 2006 Dodge Ram 3500 Factory 7-Way Trailer Connector
- Q&A: Bypassing Dodge Ram TIPM for Trailer Wiring Solution
- Q&A: Why Choose a Powered Taillight Converter Over a Non-Powered Model
- Q&A: 7-Way Installation Kit to Install Curt TriFlex Brake Controller in 2017 Audi Q5
- Search Results: r094fr
- Shop: 40 Amp In-Line Circuit Breaker - Perpendicular Mount Bracket
- Shop: Wiring Kit for 2, 4, 6, and 8 Brake Electric Trailer Brake Controllers
- Shop: 10 Gauge Wire - Blue Primary - Per Foot
- Article: Trailer Wiring Diagrams
- Shop: Vehicle Tow Bar Wiring
- Q&A: Can a Battery Disconnect be Installed on the Positive and Negative 2020 Buick Encore GX Terminals?
- Video: Complete Breakdown of the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Video: etrailer behind the scenes Roadmaster Battery Charge Line Kit Product Huddle
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Video: Setting Up Your Roadmaster Smart Diodes Wiring Kit - 2024 Chevrolet Equinox
- Video: Installation: Roadmaster Battery Charge Line Kit for Towed Vehicles on a 2024 Chevrolet Equinox
- Video: Review of the Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket
- Shop: Base Plate for Tow Bar
- Search Results: entry door window
on Accessories and Parts
Jon
4/28/2025
Which size breaker do you recommend for the Sprinter?