I have a grounding question - JeepForum.com
 
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post #1 of 8 Old 04-15-2013, 06:35 AM Thread Starter
Dudman5703
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2001 TJ Wrangler 
 
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I have a grounding question

So I'm having a bit of a grounding issue with my lights, the kind where your turn signals work until you have the lights on / step on the brakes, then all the lights kinda flash at once rather than just the one blinker making that side blink.

However, my question is, that if one light is not grounded good enough - can it cause this problem?

Or is it soley the fact that the trailer is not grounded to the Jeep good enough? I don't have another vehicle with a tailor hook up to test it on. I was just asking before I go ahead and just ground the trailer directly to the jeep to check this out, since I thought someone on here might know more about this than I do.


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post #2 of 8 Old 04-15-2013, 06:40 AM
lakeobum
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Quote:
Originally Posted by Dudman5703 View Post
So I'm having a bit of a grounding issue with my lights, the kind where your turn signals work until you have the lights on / step on the brakes, then all the lights kinda flash at once rather than just the one blinker making that side blink.

However, my question is, that if one light is not grounded good enough - can it cause this problem?

Or is it soley the fact that the trailer is not grounded to the Jeep good enough? I don't have another vehicle with a tailor hook up to test it on. I was just asking before I go ahead and just ground the trailer directly to the jeep to check this out, since I thought someone on here might know more about this than I do.
There is a wire in the trailer plug for ground, use it. Trying to ground through the hitch will cause all kinds of stange problems like what you are getting.
Awesome looking CY BTW.
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post #3 of 8 Old 04-15-2013, 07:49 AM Thread Starter
Dudman5703
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Not exactly what I meant; I am using it, I'm just not sure if it's grounding correctly. I wasn't sure if one light not grounding correctly could cause the same problem.

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post #4 of 8 Old 04-15-2013, 10:04 AM
MPond
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I've had issues like that before, and it was because the ground connection was weak. It was enough to like up a couple running lights, but as soon as the brake lights on turn signals would light up, everything would go dim.

In my case, it was the new plug I had purchased for the tailer. It had some sort of coating on the metal contacts that was causing it to not make a good connection with the plug on the truck. Eventually I figured it out, and the solution was to scratch / scuff the metal contacts on the plug just enough to remove whatever was on them. Then all the lights worked great.

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post #5 of 8 Old 04-15-2013, 10:48 AM Thread Starter
Dudman5703
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Location: Grand Rapids, Michigan
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Thats actually what I was thinking it was, except my issue being corrosion :P

I just didn't want to be out there redoing all that just to find out a light wasn't grounded good enough and not being the trailer plug it self.
Thanks for the reply.

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post #6 of 8 Old 04-16-2013, 07:13 AM
thantos858
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Replace the plug and check your connections at the lights. Trailer do very strange things when the wiring is messed up.
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post #7 of 8 Old 04-20-2013, 05:01 PM
bbacus
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Grounding Problem...?

It's hard to say if it is ground related. Most of the time if it's not grounded something simply doesn't work. If you turn your lights on and something happens that "shouldn't", then your wiring problem is more than likely on the load side (+) of your lights....lots of things can go wrong, but common mistakes include tying the wrong wires together, or simply not following the wiring diagrams.

To check if you have a good ground or not, simply use a multimeter, put it in the "resistance" mode, lowest setting, and touch the ground wire with one end of the meter, and touch the chassis or ground location with the other end, and if it measures 0, then you have a good ground. If it isn't 0, then you either have an open wire, or you need to clean/brush off your ground connection until you see some shiny metal...then repeat the above procedure.

Good luck. If this in an intermittent problem, it will be hard to find. Definitely check all your wiring details to make sure all wires are connected properly.
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post #8 of 8 Old 04-21-2013, 07:13 AM
Wagex
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could also just be a bad bulb shorting/grounding all the lights.
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