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Old 12-20-2012, 08:49 AM   #1
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Join Date: Dec 2012
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tow lighting problem

1999 fleetwood Tioga. It has a 4 pin round plug harness, and I'm trying to hook up a 4 pin flat LED tow light set from haul master onto my jeep to tow behind my RV. I got a round to flat adapter ( which the company wired wrong- I fixed). And my lights are not behaving correctly. What I end up with is this: RV engine on- left turn signal I get nothing from the tow lights. Right turn signal I get dimly lit HAZARDs from tow light. I step on the brakes and both light up like running lights (dim). I turn the RV headlights on and then I get nothing from the tow lights... What gives? Anyone know if ill need a converter in my tow light circuit? Or is there an issue with my RV wiring to my hookup? Does anyone know if the fleetwood Tioga utilizes an independent or common wiring setup for lighting circuits to rear of RV? An
y help would be appreciated...

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Old 12-20-2012, 08:51 AM   #2
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Oh, I checked the tow lights by plugging into my jeeps trailer hookup and they operate correctly. Thanks.

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Old 12-20-2012, 09:02 AM   #3
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Check your grounds. Check the ground between your coach and your tow. Get a flat four tester from NAPA or Walmart (under $5) and check the connections coming from your coach. Then, using a 12 volt power source such as a battery charger, check the lights on the tow from the flat four connector up front while using the ground connector up front.
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Old 12-20-2012, 09:44 AM   #4
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Thanks ill get on that after dropping my daughter off to preschool...ill let you know!
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Old 12-21-2012, 09:42 AM   #5
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Ok, checked some stuff out...(this rv is new to me.) The previous owner had spliced a flood light on rear bumper to assist his backing up. But instead of wiring correctly, he just spliced it in series aft the left side rear light cluster. This effects functions to my trailer port, especially due to that flood light being burnt bulb which acted like a fuse to the circuit...duh! But thanks for all the help. I'll be sure to check in from time to time. Nice forum.
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