How To Activate 12V Trailer Charge Circuit On 2019 Ford Super Duty With Factory 7-Way
Question:
I have installed the 30 amp fuse to the number 27 spot for charging trailer battery but am not getting any power to the plug.And I have a factory installed brake control inside the cab and my truck is a 2019 F350 super duty
asked by: Dewayne
Expert Reply:
If you have already added the fuse and the trailer charge circuit is not activated in the 2019 Ford F-350 Super Duty with factory integrated brake controller, then you want to make sure the trailer is connected and you press the brake according to a Ford Service Bulletin on their factory integrated brake control with trailer module 12V charging system.
There may also be a dash setting to activate the tow/haul mode on the 7-way before the 12V output is activated.
Brian
9/5/2020
I too have a new 2020 f350 with an accessory pin that won't activate. even after selecting a trailer and depressing the brake and confirming that a trailer is detected there's no accessory voltage.. I may just have it wired to an upfitter switch and just avoid the whole mess
Tom I.
8/4/2020
I have a 2020 F 150 and mine isn't charging also. Can you tell me what pins I check?
Mike M.
7/4/2020
I also am having issue's with the charging system in my 2019 F350. Replaced the fuse #27 that wasn't blown and it still did not work. I have power to the fuse. I have replaced fuse#65 it was blown. This also didn't fix the problem. Fuse #42 a 40 amp fuse could be the issue. But everything else with the 5th wheel I pull is working. Also I do not find a setting that you have to turn on, to get the battery to charge in your trailer.
Product Page this Question was Asked From
Curt 7-Way to RV Socket LED Circuit Tester - Vehicle End
- Electrical Tools
- Testers
- Circuit Tester
- Tow Function Tester
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Shop: Fifth Wheel Hitch
- Search Results: led clearance light
- Shop: Miro-Flex Thinline LED Trailer Clearance or Side Marker Light - Submersible - 4 Diodes - Red LEDs
- Search Results: dust cap
- Shop: Replacement Black Plastic Filler Cap for Dexter 7,500-lb Brake Actuators
- Shop: Ultra-Fab Power Twin II Electric Stabilizer with Dual Motors - 30" Lift - 6,000 lbs
- Search Results: 68149
- Search Results: 44649
- Search Results: 2" coupler
- Search Results: 2"
- Shop: Dexter Trailer Hub & Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased
- Shop: Sleeve-Lock A-Frame Trailer Coupler - Flip Latch - Black - 2" Ball - 7,000 lbs
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Search Results: leaf spring
- Shop: Electric Ground Control TT Automatic 5-Point Travel Trailer Leveling System - 10,000 lbs
- Shop: Vehicle Tow Bar Wiring
- Shop: Tonneau Cover
- Video: Tekonsha T-One Vehicle Wiring Harness Installation - 2018 Jeep JL Wrangler
- Shop: Brake Controller
- Shop: Gooseneck Hitch
- Video: Lippert Electric Ground Control TT Automatic 5-Point Travel Trailer Leveling System Review
- Video: Seaflo Boats and RVs Battery Disconnect Switch Installation - 2018 Forest River Wildwood X-Lite Trav
- Video: Tekonsha Prodigy RF Wireless Trailer Brake Controller Review
- Q&A: Can 2019 GMC Sierra 1500 Denali be Flat Towed and Parts Needed
- Video: Trailer Wiring Harness Installation - 2015 Toyota Tacoma
- Q&A: Trailer Hitch Recommendation for Towing Jet Ski Trailer with a 2017 Hyundai Elantra
- Article: Trailer Wiring Diagrams
- Article: How Harvest Hosts Is Becoming the New Standard of the Camping Industry
Tom E.
11/18/2021
I have a 2021 F250, it only charges my slide in camper in tow haul mode. It is a light camper and I don't always use that mode, so I had a few dead battery moments before figuring it out.