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 > Fixed: Reverse lights not working

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clotus

ca

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Posted: 01/09/20 09:37pm Link  |  Quote  |  Print  |  Notify Moderator

Hey all,

My reverse lights have not been working on my 2017 Winnebago Minnie Winnie 31K (2016 E-450 chassis)for about a year now. I finally have some time to trouble shoot it tomorrow, by myself.

I have already checked the bulbs and they are good. I will be checking the fuses tomorrow. Now for my questions:

1) If I put the ignition to "on" can I put the gear selector into reverse and will it send power to the lights without the motor running?

2) If it is not getting power, where is a common fail location I can check before I bite the bullet and re-run the wire

My multimeter is standing by and ready to solve this rather dumb problem.

Thanks!

* This post was edited 01/10/20 06:46pm by clotus *


Current: 2017 Winnebago 31K
(Sold): 5th wheel: 2015 Heartland Sundance XLT 245

Stim

NE Florida

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Posted: 01/09/20 10:01pm Link  |  Quote  |  Print  |  Notify Moderator

They should work with ignition on, engine off, BUT set parking brake!!
In order I would check- Bulbs/sockets, fuse, back up switch and switch connection.

DrewE

Vermont

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Posted: 01/09/20 10:29pm Link  |  Quote  |  Print  |  Notify Moderator

Yes they work in reverse with the key in the on position but the engine not running.

Check for a bad ground connection at the lights; that is a common fault and one sometimes tricky to diagnose if you are not specifically looking for it.





pushtoy 2

texas

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Posted: 01/10/20 05:00am Link  |  Quote  |  Print  |  Notify Moderator

i would look for a bad ground. first check the bulb socket


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clotus

ca

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Posted: 01/10/20 10:21am Link  |  Quote  |  Print  |  Notify Moderator

Perfect, thanks for the fast replies. I will be working on this shortly and will post back.

bobndot

USA

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Posted: 01/10/20 11:16am Link  |  Quote  |  Print  |  Notify Moderator

Ford I think has 2 fuses for rev lights, one inside the cab and another under the hood. Check yours to see if that's the case on the 2016 model.
One other thing that comes to mind the 7 way trailer plug at the rear.
The trailer plug and reverse lights might be a 'T' off a main line . Testing the plug will tell you if the problem is before or after the split to that plug.
Just trying to isolate things for you.

clotus

ca

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Posted: 01/10/20 11:26am Link  |  Quote  |  Print  |  Notify Moderator

Great idea! I will check for the second fuse and the trailer wiring. Keep me’ coming!

bobndot

USA

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Posted: 01/10/20 06:44pm Link  |  Quote  |  Print  |  Notify Moderator

If that rear plug works you could mount a set of LED's to the rear bumper and plug them into that plug, or run a 2nd plug off of it. You will then have a much brighter set of backup lights.

clotus

ca

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Posted: 01/10/20 06:45pm Link  |  Quote  |  Print  |  Notify Moderator

UPDATE: So although I had initially checked the bulbs, I only looked at the filament. Well, after checking the fuses and relays I pulled the bulbs and wouldn't you know they were both corroded at the base! Replaced the bulbs and BOOM problem solved!!!!

I am very happy it was such an easy fix. I used some butyl tape to seal up the lens. I was all out of geo-cel in clear so I ordered up some more to finish up sealing the tail light assembly properly and I should be good to go.

Thank you all for your suggestions.

ScottG

Bothell Wa.

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Posted: 01/10/20 09:11pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the update and I'm glad it was simple!


Scott, Grace and Wesly
2003 Dodge 3500 4x4, 6 speed Cummins.
2018 Silver Fox 32A.
H0NDA eu2000i

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