Author Topic: No power to driving light switch 2000 Beaver Sea Ciff  (Read 62 times)

Brian Fahlgren

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No power to driving light switch 2000 Beaver Sea Ciff
« on: July 25, 2026, 12:33:56 AM »
I recently purchased a really nice 2000 Beaver. I'm going over some things before we take it out for the 1st trip. I recently did the dim headlight fix with added relays. The next issue, my driving lights do not have power to the switch. There is power to the wire out of the breaker that goes to the switch. I can't imagine there's a break in the wire, and I don't believe there's a fuse. I could run a new wire from the breaker to the switch. Am I missing something? The key switch is turned to run. Thought maybe there was a relay that switches the driving off with the hi beams, but it doesn't matter if the hi beams are on or off, headlights on or off. Can't get power to the switch with any combination. I haven't been successful trying to find a wiring diagrams. Any suggestions would be appreciated. THANKS
 

Steve Huber

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Re: No power to driving light switch 2000 Beaver Sea Ciff
« Reply #1 on: July 25, 2026, 03:44:50 PM »
Brian,
The 2000 Marquis should be wired the same as the 2003 Patriot as very few changes were made until Monaco implemented the Roadmaster wiring. Using the 03 Patriot wiring diagrams in Coach Assist;
    CB28 provides the driving light power and feeds C4-4 (sheet 33)
    C-4-4 feeds C24-1, circuit 227, (sheet 19)
    C24-1 feeds the Driving lights switch connector. circuit 227 (Sheet 14)
    Output of the switch connector runs to the Driving lights C24-2, circuit 228. (Sheet 14)
This would seem to indicate your problem is either a broken wire or a bad connector pin connection in C4, C24 or the Driving Light switch connector. The wires have the circuit #s printed on them.
Steve

Steve
Coachless
2015- 6/24  07 Contessa Bayshore C9,  400 hp
2013-2015: 00 Marquis Tourmaline, C12, 425 hp
2005-2013: 01 Contessa Naples, 3126B, 330 hp
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Brian Fahlgren

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Re: No power to driving light switch 2000 Beaver Sea Ciff
« Reply #2 on: July 25, 2026, 06:48:23 PM »
Wow, Steve, appreciate the detailed info! I'll check all that out. THANK YOU!!

Brian Fahlgren

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Re: No power to driving light switch 2000 Beaver Sea Ciff
« Reply #3 on: July 25, 2026, 09:39:35 PM »
The break was in the large black wire plug in the exterior wiring compartment. I'm not a fan of taking old plastic electrical plugs apart; I don't have any other issues with the other circuits in that plug. I ran a short jumper around the plug for the 227 ING PW Driving lights. Thanks again

Brian