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Old 02-01-2016, 03:20 PM   #1
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Alpine Owners Club
Join Date: Aug 2010
Location: Cincinnati, OH
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Rear Marker Lights

2005 Alpine Coach - 36' FDDS
All top rear marker light are out . I pulled 1 bulb and it is OK. The Vansco Rear VMM chart shows output 8 as "Marker Lamps Rear 1" and output 9 as "Marker Lamps Rear 2". Both 8 & 9 LEDS are on. Some how the top rear red marker lights are all out. I don't have a wiring diagram but I checked LED 8 is wire 1156 & LED 9 is wire 268. Looking for a FIX (for the lights, not me ). I don't know when or why they all went out.

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Old 02-03-2016, 07:54 PM   #2
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Over 90% of 12V issues are the result of poor/missing ground. That's where I'd begin. Run a separate ground wire from one of them to your battery(s) to test the ground circuit. This separate ground wire may be used to test for 12V at the lights.
If poor/missing ground is the problem, then you get to begin tracking down the bad connection, or just make that temporary ground permanent, as you choose.

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Old 02-04-2016, 06:49 PM   #3
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Thanks. I was hoping someone had a wiring diagram and/or could tell me where the positive wire is routed. I'll check it out as you suggest - when it gets warmer.
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