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Author Topic: 7-Pin Trailer Socket  (Read 395 times)

phil-t

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7-Pin Trailer Socket
« on: July 29, 2017, 10:02:26 AM »
Just purchased (and will bug the dealer with this, for sure) 2010 Winnebago Vista 32K on a ford F53 Chassis.
After leaving the dealer's lot, 125 miles to home, we made our first stop at a rest area to check on things - tires etc.  We had our toad attached as well.  I was checking the lights and found that we had no tail lights on the toad.
After we got home, I was checking things and found no power on the running lights connector at the 7-Pin socket on the MH.
Called the dealer and have not heard back, yet.  Also an email to Winnebago support, have had a couple message exchanges so far.  Anyways, I have done hours of research on the trailer connector of the MH.  Found one 20A fuse (under the hood) that was bad) replaced and still no power at the connector.  There are other fuses noted on the F53 chassis but I can not find them.
Anyone else have any experience with this?  There is a fuse block inside, up front to the left of the brake and steering column but it does not have anything related to the trailer connector.  The F53 manual talks about another fuse panel up there that has a trailer connector running lights fuse but I can not find it.
2010 Winnebago Vista 32K on an F53 Ford V-10 gas chassis.
2014 Cadillac SRX in tow.
CHF, DIY rear TrackBar

JoelP

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Re: 7-Pin Trailer Socket
« Reply #1 on: July 29, 2017, 10:11:58 AM »
Are you sure that there is no power coming out of the pin on the MH?  If so you may need to remove the connector, take it apart  and check to see that the wire carrying power is still well attached.  If that wire going to the connector has no power you will need to see where it is attached to derive power and fix that connection on your MH.  If you check again and see that there is power to the pin, but it is not transferring across the connector, the problem could be with the connector.

I am not sure which brand 7-pin connector you have, but I had one made by Pollak.  It was working fine for a while and then on one trip the running lights failed to work reliably.  When I wiggled the connector these would come on and go off.  For this style connector the pins are split in the middle. You can put a very skinny screwdriver in the split and spread this pin ever so slightly to tighten the connection. Perhaps that is your issue.  One warning, don't get too carried away with spreading any pin since metal can fatigue and half the pin can break off (voice of experience) and you will be replacing the entire connector.
« Last Edit: July 29, 2017, 10:19:09 AM by JoelP »
Joel from San Jose

2010 Itasca Suncruiser 37F
8.1L Chevy Workhorse with Banks PowerPack
2016 CMax Energi Hybrid dinghy

ChasA

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Re: 7-Pin Trailer Socket
« Reply #2 on: July 29, 2017, 10:52:54 AM »
I think your instrument panel will lift up. Below the panel is a Ford fuse panel. The fuse for the lights MAY be there.
Apex, NC
2010 Winnebago journey Express 34Y (pre DEF)
2007 Saturn Vue

JoelP

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Re: 7-Pin Trailer Socket
« Reply #3 on: July 29, 2017, 11:44:42 AM »
I think your instrument panel will lift up. Below the panel is a Ford fuse panel. The fuse for the lights MAY be there.

If it were the fuse wouldn't th erunning lights on the RV also be out?
Joel from San Jose

2010 Itasca Suncruiser 37F
8.1L Chevy Workhorse with Banks PowerPack
2016 CMax Energi Hybrid dinghy

phil-t

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Re: 7-Pin Trailer Socket
« Reply #4 on: July 29, 2017, 12:06:53 PM »
I'll try the instrument panel.  The fuse I'm looking for is specifically for the running lights circuit to the 7 pin connector.  No power on the wire going into the connector.
I'm using a good fluke test set for troubleshooting this.
2010 Winnebago Vista 32K on an F53 Ford V-10 gas chassis.
2014 Cadillac SRX in tow.
CHF, DIY rear TrackBar

phil-t

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Re: 7-Pin Trailer Socket
« Reply #5 on: July 31, 2017, 03:27:53 AM »
I did find the fuse - up front in the engine compartment - a 20A maxi fuse.  Replaced and now have 12V at the proper pin of the trailer socket when the RV lights are on.  Still a"ring" that circuit out on the car.  If I can't get it, the dealer will be seeing my face soon.  8)  My problem with the dealer is that they are 125 miles away.  Calling the tech that did the install today.
I suspect there is/was a short, somewhere, now an "open"; that caused that 20A fuse to blow.
2010 Winnebago Vista 32K on an F53 Ford V-10 gas chassis.
2014 Cadillac SRX in tow.
CHF, DIY rear TrackBar

Ray,IN

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Re: 7-Pin Trailer Socket
« Reply #6 on: August 01, 2017, 06:26:29 PM »
Someone already advised you to take the plug loose and examine the connections, for good reason. All it takes is one strand of loose wire the person performing the wiring missed,which can vibrate and touch a different wire, BAM blown fuses.
2000 Winnebago Ultimate Freedom 40JD, ISC 8.3 Cummins 350, Spartan MM Chassis.  USA 1SG, retired, Good Sam Life member.
The Constitution is not neutral. It was designed to take the government off the backs of people. Supreme Court Justice William O. Douglas

phil-t

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Re: 7-Pin Trailer Socket
« Reply #7 on: August 01, 2017, 07:19:54 PM »
Someone already advised you to take the plug loose and examine the connections, for good reason. All it takes is one strand of loose wire the person performing the wiring missed,which can vibrate and touch a different wire, BAM blown fuses.
Thanks.  Been there - checked both ends and connectors.  The dealer is getting it back.
2010 Winnebago Vista 32K on an F53 Ford V-10 gas chassis.
2014 Cadillac SRX in tow.
CHF, DIY rear TrackBar

phil-t

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Re: 7-Pin Trailer Socket
« Reply #8 on: August 15, 2017, 03:06:35 PM »
So - after an hour at the dealer, they isolated the tail light circuit on the car and found it shorted to ground!  The "helper" tech "pinched" the tail light wire behind the screw he used for the ground wire attachment, and it was "hidden" behind a panel in the rear of the car.   :-\
2010 Winnebago Vista 32K on an F53 Ford V-10 gas chassis.
2014 Cadillac SRX in tow.
CHF, DIY rear TrackBar

 

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