2009 Sightseer 35J Marker Lights Fuse Location

John Mo

Senior Member
Joined
Oct 26, 2007
Posts
180
Replacing a marker light and I shorted it and blew the fuse. :(

So I get up under the dash and locate the panel and there are a lot of fuses. Tough spot to start pulling and inspecting all of them. I'd really like to seek and destroy.

There's a nice diagram inside the kick panel that shows a 10a fuse for MKR LPS in position 17. Nice.

Looking at the panel, I don't see a 17. The fuse panel helpfully suggests looking in the owners manual.

The Ford chassis manual doesn't have it because marker lights are Winnebago-installed.

The Winnegabo owners manuals don't have a fuse panel diagram. There's a picture of the panel with a comical note that it's "conveniently located." No diagram.

I've attached a picture of my fuse panel and, FWIW, the diagram inside the panel. Anybody know which fuse I'm after?
 

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John Mo-

The fuse is Ford supplied, but it is not on that fuse panel.

According to the 2009 Ford chassis owner's manual (link here), page 74, the fuse for the "parking lamps" is inside the Power Distribution Box [PDB], fuse number 6, rating 20A.

The PDB is under the hood, above the radiator, roughly on the coach centerline. The tab to open it is on the TOP or the BOTTOM edge of the box. Find the hinge; if it's on the left, the tab is on the right, on the BOTTOM edge of the box; if the hinge is on the right, the tab is on the left, on the TOP edge of the box.

The white label is for a Workhorse chassis. Yours is a Ford, so that label does not apply.

Winnebago wiring diagrams for your coach are here. See "Auto Lamps Wiring Diagram," sheet 3, zone D-5 for the Ford connector and how it feeds the Winnebago clearance lamp wiring.
 
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From here it looks like the info in the cover doesn't match the fuses you have in any way!
The diagram has 4 rows of six fuses. But what you show is 7 rows of six except they don't have a number one to leave the top row only five fuses!
So the lid may have been broken over the last 15-20 years and somebody slapped a different one on?

But I think you may be missing some small points as the numbering/labels are a bit weird!
I see the number as the place for fuse one is skipped and the first line has five, instead of six.
But if you count them, you get 17 being the last in the third row instead of number 18!
This fit what you see on a second look?
fuses.jpg

But I never like to pull these small fuses until I have to replace one as it is extra effort and adds a chance of breaking or dropping something.
Actually that is why they put test points on the top, so we don't have to pull every fuses to find a bad one, even if we have no idea where it might land!

If you clip one meter lead to ground and then go along each fuse and read both left and right test points, you will not get the same reading on both sides if the fuse is blown!
If the test point is too small for your probe, wrap a small gauge wire around the probe to make it fit the hole better!
When a fuse is blown the wire connecting left and right legs is open and the voltage reading at test point will not be the same!
blown fuse.jpg

Much better way to test fuses and it can avoid creating problems as you go along!

See if that gets you to the right place and shout back if more is needed?
Wish you luck as getting in under that dash can be a trick all of it's own!

The correct owners manual would be the chassis manual as it is part of what we would normally find on a truck! The fuse panel is part of the stripped chassis Winnebago buys, even though they do add the clearance light , they are connected tot he wiring of the chassis which is already installed, so considered chassis parts when we need service or info.

NOTE? I wrote this up late last night and then got busy and forgot to hit post! that makes Mark's info far better anyway!
But the testing fuses may help cut some effort?
 
John Mo-

The fuse is Ford supplied, but it is not on that fuse panel.

According to the 2009 Ford chassis owner's manual (link here), page 74, the fuse for the "parking lamps" is inside the Power Distribution Box [PDB], fuse number 6, rating 20A.

Huh. I have the chassis owner's manual, but didn't think to look under "roadside emergencies" for the fuse diagram.

Yep, it's #6 and a lot easier to get to than the ones inside.

FWIW, the chassis manual has the correct diagram for the inside panel too. No idea what's going on with the diagram inside the panel cover. AFAIK it's never even been opened, so I don't know how it would have gotten swapped out. I'm the original owner.

Thanks for the pointer in the right direction.
 
When hanging around RV shows for a while as a volunteer, we saw amazing things happen. No way to say what is up with the wrong diagram but , in general, we lost almost all respect we had for RV dealers when we went "inside"!
One of the big things about being a volunteer in some of those operations is that you are considered somewhat lower than the wall paper when it comes to intelligence~!

The thought is that it doesn't matter what they do in front of you because you have no sense!

Coming back around to the cover? I might guess that one disappeared during a show and they simply put one on that fit, even if it did not belong to that RV. Then when they sold it to you as new, they did not mention that it was what would be called a "demo' in the auto sales world!

I can't think of any other way that a lid for a GM chassis is on a Ford that comes to Winnebago as a a stripped chassis! Just my guess but I would assume that the lid showed up missing which is a common thing at RV shows. When they wanted to sell that unit they "found" one that fit!
 

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