No power (less than 1v) to trailer lights socket but motorhome rear lights are fine
My trailer socket is getting just a trace of voltage (just measurable on the voltmeter, around .2V) but my motorhome tail lights work fine. 2 months ago the trailer lights worked just fine. I have tried tracing everything and I am at my wits end. I have a 1997 Winnebago Adventurer on the Ford F53 chassis.
The voltage is the same regardless of what nearby ground source I use and it appears the trailer and rear motorhome lights share the same grounding lug which appears fine.
I checked every fuse I could find even though I could not find any documentation on which fuse is exactly for the trailer lights.
I traced the winnebago installed wires from the trailer socket to ford connector in the back of the motorhome. I pulled the connector apart and tested there, same issue - power to the motorhome lights but just trace power for the trailer lights.
I have searched many threads and haven't found anything to be helpful in my case.
This is my first post and I sincerely appreciate any help.
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04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna 01 Z3
Life is a Timed Event, you only get One Go Around!
If you read normal voltage at the Ford connector, but little voltage at the socket, I'd pull the socket out and check the connections in it. Not uncommon for a socket to go bad. A new one is less than $10, it would be a simple replacement if it's bad.
Of course test the wires where they connect into the socket to be sure they are conducting power correctly before replacing the socket.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
Thanks. I had pulled all the wiring diagrams from Winnebago and traced them as best I can up to the front of the chassis. I don't see any issues with the Winnebago wiring. When I try to go to the Ford F53 wiring I can't seem to find diagrams with enough fidelity to help me and when I try to trace the wires to the front I lose them in a mess of wires I can't seem to follow to the power source and fuse box.
I have tried everything and I am at the point of just running new wires or tapping into the motorhome lights.
I read the same (trace - 0.1 - 0.2V) voltage at the Ford socket/connector as at the trailer socket. I have a very hard time tracing the Ford wiring to the power source or fuse box. It seems to get lost up in the firewall with a conglomeration of other wires.
Thanks for the link for the fuses. My Ford 53 service manual didn't show this. Normal 12V voltage is going through the number 18 fuse. There must be a problem between the fuse and the Ford 53 wiring going to the back of the coach. I will continue to investiage
I got it! Many thanks to all, especially grtharris. It wasn't the number 18 fuse in the coach, but looking further in the information he sent it was the number 4 fuse in the engine compartment. The fuse was fine, but it was a loose connection in the #4 fuse not providing a snug connection of the fuse.
I am new to RV-ing and I found found the RV community is great and really helps others.
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