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Electrical Discussion of preventative/corrective maintenance and other technical issues regarding your coach's electrical system.

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  #1  
Old 04-04-2018
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Steelwheels Steelwheels is offline
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Default Headlight short ?

I’m on the road and I’m having headlight problems. I turn on my headlights and my dash light lights do not go on or may light for a second then shut off like a circuit breaker is tripping, I also get movement on my DC Volt every time it trips. My headlight alarm also has also stopped working along with this problem which just occurred, no work under the dash recent just started out of the blue. I don’t see any loose wires under the dash.

Any ideas what to look for or how to troubleshoot shoot this ? I don’t want to turn the headlights on any watch it keep tripping for fear of some more major issue or short.
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Old 04-04-2018
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are you towing a car?
If so,unplug the toad lights pigtail,see what happens.
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Old 04-04-2018
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I am towing, just tried unplugging it and it didn’t change.

I let it click on and off for a few seconds it clicks in the headlight alarm goes off and lights start working?
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Old 04-04-2018
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try the high beams,what happens?
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Old 04-04-2018
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High beams are working .

Now something clicked in and everything is working again, dash lights headlight alarm, headlight on indicator ?

Weak breaker ?

Loose wire on the towed 7pin that I unplugged and plugged back in ?

Gremlins.
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Old 04-04-2018
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I used to have problems with my high beam, when I’d use them my headlights would go out intermittently. I generally stopped using them, I have used them a few times lately without issues.

I’d like to figure out what the just caused this problem, it really seemed like a short but now it just stopped.
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Old 04-05-2018
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Yeah it started working, I tried to start driving and it stopped working.

Tried turning on the high beam no change, high beams working through.

I hear a click under the dash, And the headlights flick on and off with everything else,
And tail lights are out, signals are working.
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Last edited by Steelwheels; 04-05-2018 at 01:33 AM.
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Old 04-05-2018
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your bird may have headlight relays, something could be going on there.
Check the wiring behind the headlights and behind the driver headlight inspection panel, there are relays for the fog lights in that area or maybe the headlights,
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Old 04-05-2018
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Clicking under the dash is most likely a circuit breaker. Sounds like a headlight wire is grounded. Fold out the doors the headlights are on and look for a bare wire. Remove the headlight plug on the back of the bulbs one at a time and see if one of the bulbs is shorted. Search along the wiring as the breaker is cycling with an infared heat gun for the hot spot.

Rick in Ohio
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Old 04-05-2018
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Thanks.

Trying to knock out some miles before nightfall, will try and troubleshoot later.

Does this sound like a short for sure ? Would a weak breaker or relay cause this?
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