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Old 07-29-2019, 08:57 AM   #1
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Urgent: Lighting Issue

All,

Iím on vacation and just picked up a trailer. The guys helping me hook up plugged the trailer in while I was on the brake. Now the entire tail light is out (no running light or brake light) on the coach. Iíve tried the simple reset on the Vansco module. Trailer is unhooked and unplugged, I have removed the draw tite converter box (thanks OldScout).

I now have running lights, but still nothing when I press the brake. I canít move until I get this figured out. Please help!
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Old 07-29-2019, 09:01 AM   #2
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Oh, and the Vansco seems to be giving the proper outputs when the brake is depressed.
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Old 07-29-2019, 10:55 AM   #3
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Happened to me a couple years ago. I finally unplugged rear Vansco after trying reboot and when I replugged the Vansco all worked as it should. Still working. This might or might not work , but worth a try.
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Old 07-29-2019, 11:06 AM   #4
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Quote:
Originally Posted by Rusty Bear View Post
Happened to me a couple years ago. I finally unplugged rear Vansco after trying reboot and when I replugged the Vansco all worked as it should. Still working. This might or might not work , but worth a try.


Rusty, did you unplug after tripping the disconnect off? Or did you unplug while power was going to it?
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Old 07-29-2019, 11:26 AM   #5
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Tommy,

I don't know if you'll hear back from Rusty or not, but, I personally wouldn't chance unplugging and plugging the Vansco connector with the disconnect in the on position. I would be concerned about the possibility of a short from a misalignment while plugging or some kind load pick up if it does plug straight in. Having had Vansco issues in the past I am very careful with them. They are after all...Ö...VOODOO!

Just my opinion,

Terry
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Old 07-29-2019, 11:32 AM   #6
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Quote:
Originally Posted by Terry W View Post
Tommy,



I don't know if you'll hear back from Rusty or not, but, I personally wouldn't chance unplugging and plugging the Vansco connector with the disconnect in the on position. I would be concerned about the possibility of a short from a misalignment while plugging or some kind load pick up if it does plug straight in. Having had Vansco issues in the past I am very careful with them. They are after all...Ö...VOODOO!



Just my opinion,



Terry


Terry, I definitely agree with that logic . Was just looking to see what he did.
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Old 07-29-2019, 01:22 PM   #7
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Update: I have replaced:
-Trailer Lighting Converter
-Rear Bulbs
-Brake Switch

I have restarted the Vansco several times, ensuring no power was going to the coach when I installed the components mentioned. The last reset I unplugged the Vansco after flipping the disconnect, as Rusty mentioned above.

Still no brake lights! The brakes work, just no brake lights on the coach or trailer.
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Old 07-29-2019, 03:27 PM   #8
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Tommy,

I havenít dealt with this yet. Sometimes, maybe always, a diode kit needs to be installed on the trailer/toad harness to prevent voltage/current from feeding back into the VMM. The #12 output LED on the rear VMM indicates brake light function, according to the schematic.

Bob
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Old 07-29-2019, 03:59 PM   #9
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Tommy,



I havenít dealt with this yet. Sometimes, maybe always, a diode kit needs to be installed on the trailer/toad harness to prevent voltage/current from feeding back into the VMM. The #12 output LED on the rear VMM indicates brake light function, according to the schematic.



Bob


Bob,

Thatís the problem, Iím not having any issues out of the Vansco. The trailer is unhooked and I get #12 lighting up when I push the brakes, but no brake lights on the coach...
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Old 07-29-2019, 08:06 PM   #10
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I powered off the Vansco then unplugged Vansco checking for maybe wiring issues. When Plugged in ,then powered on. I have had issues sometimes with plugs that had corrosion and cleaning them and some electronic spray solved the problem.
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Old 07-29-2019, 08:31 PM   #11
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Quote:
Originally Posted by Rusty Bear View Post
I powered off the Vansco then unplugged Vansco checking for maybe wiring issues. When Plugged in ,then powered on. I have had issues sometimes with plugs that had corrosion and cleaning them and some electronic spray solved the problem.


Rusty, thanks for the reply. Iím going to check those harnesses in the rear compartment tomorrow morning.
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Old 07-30-2019, 12:11 AM   #12
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Also inspect the plugs for cracks or loose pins.
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Old 07-30-2019, 02:49 PM   #13
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Is there power at the brake switch? If so, then power out of switch while peddle is being depressed? Work your way forward or back from that point until you find the loss of power.
Did you add a electric brake controller at the same time? If so how was the brake signal wire handled??? I wired mine around the Vansco! I didn't think it would handle the extra load.
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Old 07-30-2019, 03:03 PM   #14
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Not likely, but Could have the brake light bulbs blown when you first energized the system?
Have you verified power at bulb sockets?
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