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Old 11-30-2016, 03:41 PM   #1
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Rear tail lights and turn signals on back of coach

I have a 2000 Holiday Rambler Endeavor 38ft DP. I am having problems with the rear turn signals. The right one blinks as normal but the left one blinks all the lights on rear of coach. The wiring has not been tampered with in the rear of the coach. Also when I put the brake light on nothing blinks. The trailer plug works fine. I was told to try a new headlight switch which I installed today but no help. Any ideas?? Thanks John
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Old 11-30-2016, 04:00 PM   #2
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The first thing I'd check is your bulbs in the rear. I've seen a number of instances where bulbs with multiple filaments have one filament fail and short to the adjacent one inside the bulb. At that point really strange things start to happen. Just an idea to eliminate one failure point that's easy to check.
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Old 11-30-2016, 04:08 PM   #3
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As mentioned, try a new bulb in the left side. Cheap test.

While there look for the ground wire from the light itself to a metal part of the chassis.
When the ground connection fails, the ground circuit is found thru the rest of the bulbs.
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Old 11-30-2016, 05:49 PM   #4
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Rear tail lights and turn signals on back of coach

I agree with the above. I think you have a bad ground on that side. Run a new ground wire to the vehicle frame.
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Old 11-30-2016, 06:12 PM   #5
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xxx2,3,4 on the potentially bad ground. The best clue that you provided us for helping you in this situation is that "nothing has been tampered with" in terms of the lights, bulbs and wiring back there. This leads any experienced DIY type to point you at most likely a bad ground or, as Pigman stated, a goofed up bulb.

Bad grounds have the highest percentage of causes of electrical issues, especially when it comes to lighting, than any other potential cause. Now, this doesn't mean that you can't have a broken wire touching a grounded spot every now and then, or a bad plug with corrosion. There's all kinds of potential causes but, do check the grounds first.
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Old 11-30-2016, 07:03 PM   #6
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Don't forget to check al of your other bulbs, including front turn signal bulbs. One out in the front can cause issues.
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Old 11-30-2016, 08:25 PM   #7
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Had the same indications from #$%@^& squirrels....

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Old 12-05-2016, 07:10 PM   #8
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Thanks for all the info I will check the bulbs and ground next
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