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12-10-2017, 07:04 PM
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#1
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Senior Member
Join Date: Nov 2017
Location: East Texas
Posts: 267
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No power from truck to lift landing gear
2017 F250 my RV dealer said fuses position 27 and 37 vacant needed to give power to battery when plug connected to truck. Any thoughts?
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12-10-2017, 07:11 PM
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#2
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Site Team
Join Date: Oct 2014
Posts: 15,294
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Can't say specifically about your truck, but many tow ready TVs do not have the fuses or relay installed by factory. For many, the fuse and relay are in the glove box when delivered. You should be able to find it in manual. Also if it has a relay, it will only provide power when the TV is on. This is to prevent a drain in the trailer from killing the TV battery.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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12-10-2017, 07:29 PM
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#3
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Member
Join Date: Mar 2016
Location: Florida
Posts: 63
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Ford dealer said my 2017 F-250 came with fuses already installed. Haven't had any issues. My F-150 had to have a fuse installed. Hope this helps.
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2017 F-250 6.7 4x4
2016 W&P CB25
2005 HD RoadKing
2002 Yamaha V Star 1100
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12-10-2017, 09:43 PM
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#4
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Senior Member
Join Date: Nov 2017
Location: East Texas
Posts: 267
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Thanks. Not in glove box will contact dealer.
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12-11-2017, 01:04 PM
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#5
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Senior Member
Join Date: Jul 2014
Location: SouthWest Michigan
Posts: 5,977
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Quote:
Originally Posted by Jim Wagner
2017 F250 my RV dealer said fuses position 27 and 37 vacant needed to give power to battery when plug connected to truck. Any thoughts?
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Are you talking about ele jack on the tongue of a TT ???
If so it should it be wired to the TT Battery !!!
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12-11-2017, 01:21 PM
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#6
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Senior Member
Join Date: May 2013
Location: La Mirada, CA
Posts: 528
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Check the charge circuit at the connecter. If no power take a look at your truck manual to identify the fuse number and location of the trailer charge circuit. Ford undersized that fuse and they often blow if you operate the landing gear with a weak trailer battery. Replace the 20A fuse with a 30A.
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Gary and Donna
2005 Cardinal 33TS-LX
Trail Air pin box
Center Point suspension
2018 Ram Laramie 3500 6'4" box 2WD
Demco AutoSlide 18k
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12-11-2017, 01:43 PM
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#7
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Site Team
Join Date: Oct 2014
Posts: 15,294
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This may help. Looks like ti has both a fuse and relay.
http://imageresizertool.com/diagram/...l-diagram.html
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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12-11-2017, 01:53 PM
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#8
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Senior Member
Join Date: Mar 2014
Posts: 201
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I have a 2017 F350. A lot of talk about this on Ford truck forum. Bottom line seems to be you don't need certain fuses, you get power to the plug after stepping on brake pedal for first time after starting engine and trailer connected. I really don't know those fuse positions you are talking about but it appears to come configured correctly from factory as is. I haven't experimented with my fifth wheel yet as it is in storage, but I think you are good to go according to the Ford truck forum.
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12-11-2017, 02:16 PM
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#9
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Senior Member
Join Date: Oct 2015
Location: Wisconsin/Florida
Posts: 1,907
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Just a thought. Our Sunseeker on the E450 ford chassis required the ignition to be on to power the trailer 12 volt circuit. Ignition off, no power. I learned that wiring the battery tender on our Jeep toad.
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12-11-2017, 02:20 PM
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#10
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Senior Member
Join Date: Jul 2017
Location: Rice, WA - Sold the S&B!
Posts: 596
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Quote:
Originally Posted by Flybob
Can't say specifically about your truck, but many tow ready TVs do not have the fuses or relay installed by factory. For many, the fuse and relay are in the glove box when delivered. You should be able to find it in manual. Also if it has a relay, it will only provide power when the TV is on. This is to prevent a drain in the trailer from killing the TV battery.
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^^ X2 ^^
__________________
As a teacher my signature was, “If you think education is expensive, try ignorance.”
As a novice Glamper, it still applies.
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12-11-2017, 02:37 PM
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#11
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Senior Member
Join Date: Jun 2013
Location: mid Michigam
Posts: 124
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Mine was a Chevy, supposed to be RV ready. I need a fuse and a wire that was tied back on the wiring harness connected to the post on the electrical connection center under the hood. Owners manual and You Tube helped me.
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12-11-2017, 02:50 PM
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#12
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,144
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My 2017 Super Duty Lariat came with the fuse (#27 30a M-Case fuse) and the relay (#37) already installed.
Follow the owners manual link below and pay attention to pages 311-316.
You should have an owners manual that that came with your vehicle that spells this out. Does your truck have a tow package?
2017 SD Owners Manual
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2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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12-11-2017, 03:11 PM
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#13
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Senior Member
Join Date: Aug 2011
Location: Albany, GA.
Posts: 1,359
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FWIW: My '14 GMC did not come with fuses to ANY of the poles on the 7-wire connector. The selling dealer had it three days trying to figure out why nothing worked when I plugged in my TT to the truck. The selling dealer had me take the truck to another GM dealer some 30 miles away to have them look at it. First off-the GM dealership had not been notified that I was bringing the truck to them, fortunately they put me next in line. As soon as the service manager asked me why I brought the truck to them he seemed amused and stated: "Those Mexican made trucks DO NOT come with the fuses needed for an RV hookup". It took the service manager maybe 15 minutes to get the necessary fuses from the parts department and put them in for me. He borrowed a tester from a mechanic to test the 7-way connector and all was well. He also advised me not to buy another vehicle from the conglomerate dealer in my town and come see them next time. Betcha' I will.
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12-11-2017, 05:21 PM
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#14
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Boondocking Only
Join Date: Jan 2013
Location: Wyoming
Posts: 360
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True, they provide power to the battery & also power to the 7 pin to charge battery while connected. They do not come installed because there is constant power & will cause corrosion. Same with F-150
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12-11-2017, 07:45 PM
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#15
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Senior Member
Join Date: Dec 2015
Location: Eastern NC
Posts: 3,963
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My 2016 F350 came with all fuses required... Same with the 2016 F250. Both ordered with camper package may be the reason??
__________________
2022 Montana 3855 BR
2019 F350 6.7 4X4 LB Dually
Edgewater 205 EX 150 Yamaha
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12-12-2017, 07:31 PM
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#16
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2007 WildCat 32QBBS
Join Date: Jul 2011
Location: NJ
Posts: 2,349
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Quote:
Originally Posted by ddbck
True, they provide power to the battery & also power to the 7 pin to charge battery while connected. They do not come installed because there is constant power & will cause corrosion. Same with F-150
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Only when the truck is in the run position. When ignition is off, so is the power to the 7way receptacle.
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*Current: 2005 Ford F350 Crew Cab Dually 6.0 diesel 4x4*
*Retired: 1987 F350 Crew Cab Dually 6.9 turbo diesel
2007 Forest River WildCat 32QBBS
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