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Old 01-13-2022, 05:07 PM   #1
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Running lights and lower side marker lights not working

Still trouble shooting a 12v electrical lighting issue.
2008 monaco dynasty squire iv.

My running/parking lights do not work in the front or rear, my lower side markers also do not work. When connected to my toad, the running/parking lights also do not work on the toad.

What does work: Headlights work on low and high, turn signals work, flashers work, emergency lights work, brakes work, upper front and rear markers work.

I have checked and rechecked every fuse in the front run bay and bedroom using a test light and replaced any that were questionable.
I have replaced the headlight switch, I ordered a 2nd replacment just in case the 1st replacement was a dud.

I have checked all the grounds in the front run bay.

What else am I missing?

Some have suggested the smartwheel, thats a last resort replacement @ $400 for the part.
My running lights and markers are not controlled by the wheel from what I can tell. Rather, they are controlled by the pull our headlight switch.
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Old 01-13-2022, 07:20 PM   #2
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Because you mentioned that you have a light switch that pulls out, I believe you have a conventional and not a chassis multiplex coach. If my thinking is correct, check the running lights fuse on circuit board #7 in the Front Run Bay. Also, check the park light relay on board #1 in the FRB.
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Old 01-14-2022, 05:45 AM   #3
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All fuses have been checked as stated
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Old 01-14-2022, 01:09 PM   #4
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While it's OK to have checked every fuse, it's actually more important to focus on the specific fuse and associated relay that controls the running light circuit. In order to troubleshoot this issue you need to verify that the parking light relay is getting power through that fused circuit and that the parking light relay is working. You could have a good fuse and a bad connection between the fuse and that relay or a bad relay. That's why I gave you the specific locations of the fuse and relay.
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Old 01-14-2022, 02:24 PM   #5
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Some coaches came with a DLR for the running lights. In my case the lower running lights would only work with high beams. I wanted to add an LED fog light instead of the running light and wanted to be able to operate separately.

Another Monaco owner had done the same thing, all's I had to do was to remove the Bosch relay from the wiring harness and jump across 2 of the terminals. I can now have High/Low beams and operate the running lights separately.

He also told me that he had burned out 2 of these relays before he just bypassed it.
See pictures


The DLR was tucked behind a bunch of wires, I had to dig to find it.



There is another type of relay that was also installed in newer Monaco's
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