Can Vehicle Wiring Harness Be Connected to 12V Hot Wire in the Rear of 2012 Toyota RAV4
Question:
Im thinking about installing the wiring harness for my 2012 Toyota Rav-4 and have a question about running the wire from the battery. Im relatively familiar with vehicle wiring and was wondering if it is possible to run the power wire by tapping into my 12V terminals hot wire in the rear, rather than having to run a wire all the way from the front. I feel like this would help avoid it being subject to the elements we face here in MN. Thanks,
asked by: Eric G
Expert Reply:
When installing a wiring harness like the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # 118412, on your 2012 Toyota RAV4, you will want to follow the installation instructions.
When the wiring harness is wired according to the installation instructions, the vehicle's wiring system will not be exposed or put in jeopardy in the event of a short in the trailer's wiring or lighting. The T-One Harness has a powered ModuLite which isolates all of the power draw to the black power wire. This power wire must be connected directly to the battery in order to safe guard the vehicle's electrical system. If you were to tap into the 12V hot wire in the rear of the vehicle, it would defeat the purpose of a separate power wire and is not recommended.
I have attached a demo video of this harness being installed on a 2012 Toyota RAV4.
It is recommended that you use a small amount of grease on all electrical connections including plugs and the 4-pole connector itself. Dielectirc Grease, # 11755, helps to prevent electrical failures caused by corrosion and moisture.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Trailer Hitch
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Q&A: 2011 Toyota RAV4 Limited EcoHitch Hidden Trailer Hitch Receiver # 306-X7174 Weight
- Q&A: Why Does Curt Trailer Wiring Harness # C56165 Require Wiring to the Positive Side of the Battery
- Q&A: Hitch Recommendation for 2012 Toyota RAV4 that Will Clear Rear Spare Cover
- Q&A: Wiring Needed to Equip 2010 Toyota RAV4 With 7-Way for Use with Brake Controller
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Video: Thule Hitching Post Pro Hitch Bike Rack Review - 2012 Toyota RAV4
- Video: Tow Ready Wiring 18140 Review
- Video: Kuat Ubar Bike Frame Adapter Bar Review
- Video: Best 2011 Toyota Rav4 Trailer Hitch Options
- Video: Curt LED 4-Way Flat Connector Vehicle End Tester Review
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: EcoHitch Hidden Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Curt Mounting Bracket for 4-Pole Flat Trailer Connector
- Shop: Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Video: Hopkins Wiring HM48595 Review
- Q&A: Can I Tap Into Any 12V Power Source at the Rear of a Toyota RAV4 for Tow Harness Part 118412
- Article: My Trailer Hitch Doesn't Fit
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Shop: Suspension Enhancement
- Article: Trailer Wiring Diagrams
- Q&A: Trailer Wiring Harness Stopped Working After Backing Up Trailer Into Water
on Custom Fit Vehicle Wiring
