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I was told that the ground wire is not connecting. I put in a new bulb but it is so dim. Yeppers, I am A Girl, but from Texas

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Hello phogan. I am Joe Hogan :^). A ground wire is simply a wire that goes from your lights, in this case, to the frame of your car where it is screwed in. Sometimes the screw gets loose at one end or the other and other times corrosion between the screw and the frame results in a poor ground. The poor ground causes little electricity to flow and as a result your bulb is dim. Of course this is not a good situation. Since finding the ground wire is sometimes hard to do unless you know what to look for, this is what I recommend. Drive to an autozone or other similar auto parts store. Tell the clerks what your problem is. Often, these clerks are all motorheads who love to work on cars. They often come out into the parking lot and show you exactly what to fix, tell you how to fix it.....and if you promise to bake cookies for them, will actually fix it for you. Good luck with this. Don't drive after dark until your problem is fixed for safety reasons. Regards, Joe

Posted on Dec 12, 2009


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Headlights went dim replaced bulbs and they were fine. They went dim again within a couple days then went back to normal by themselves. Were fine for a couple weeks now are dim again?please help thnks

Sounds like a poor electrical connection - independent of the light bulbs. Many times the ground connection to the the steel frame / chassis becomes corroded resulting in a lowered voltage on the circuit (instead of 12V reaching the lamps - only 9 or 10 volts gets to them). Try gently tugging / shaking the wires at the lamp / wiring harness to see if the lamps get bright / dim again. This will help you narrow down where the loose connection lies. If you can't find the loose connection, you can also simply supplement the ground wire on the lamp circuit with another parallel wire with one end connected to the (-) post of the battery and the other to the ground wire on the head lamp. If it was a ground connection problem - this supplemental wire will solve the problem.

Jul 24, 2015 | 2002 Hyundai - Sonata

1 Answer

The low-beam light on my 2007 I-290 is very dim. I replaced the bulb but it had no effect. I was told that it probably was a bad ground. Where would it be grounded?

test the voltage at the light fixture connection with a multi meter, follow the wire back until you find 12 volts again, check the ground on the battery, follow the ground to see if there are any damaged connections along the way, check the bulb seat for grase or corrosion, you can use break cleaner and air, dry fittings before connecting, sometimes wires get loose in the plastic connectors, you do not have to buy the complete connector, tell the dealership you want the inserts that go into the connector, usually you can get a wire with the end already on it and a little tool that pushes the old one out, insert the new one and connect the wire, sometimes it can be inside the wiring harness but you can always bypass a wire as long as you know where it ends up, just use the same size and type of wire and protect it with the right wire loom

Dec 12, 2014 | Cars & Trucks

1 Answer

Someone told me that my light was dim on the right side. My husband changed the bulb, well it will not come on at all when I have my lights on regular but if I turn the bright lights on it works. He then...

I would rule out a bad light connector plug, and then the ground connection. generally you will find a good size wire attached to each side of the headlights which is screwed into the chassis for a ground. when a head light is dim, there is usually something afoul there. i would bet that your husband plugged the wrong type bulb into the socket, that is why it did not come on at all with the new bulb. there are two different head light bulbs, physically they are the same, but electrically they are different so you can easily put the wrong one in either socket. this holds true for the tail lights as well, easy to get them backwards.

if you can not find an obvious problem with the ground or the connector, then a mechanic is going to have to put his hands and eyes on it. this could be a type of problem where a high dollar dealer service department might be a better choice than a low dollar garage. if this is a common problem the dealer could fix it in a snap and there may even be a recall on the light fixture.

Mar 01, 2011 | 2005 Honda Accord

2 Answers

My dashboard lights suddenly have gone dim--not out but dim and I turned them all the way up. Is there a bulb to replace or something? Please help this girl!! :)

Hello! The problem is that as vehicle's age (not picking on your car...I drive a 93 Acura) the electrical connections rust and corrode...This creates a resistance or blockage of the current necessary to light the instrument panel, as an example...It is like a light dimmer in your home...Turn the knob and dim the lights...Although House voltage is AC and cars are DC It is essentially the same...Adding resistance...Take a look at the connections on the Accord's battery...Are they clean and tight? No white or green stuff on the battery post?...If yes, have them cleaned...If not, the problem is the connection of the negative battery cable to the body of the car (ground straps)...Those dash lights require a solid ground...The connector plug that feeds the instrument panel may also have a bad connection on the pin that carries ground... If you happen to know someone who has a multimeter the connections can be tested...Tell them to set the scale to X1 ohms...Put one meter probe on the center of the - battery post...And the other to a bare metal part inside the vehicle...A bare door hinge bolt, for instance...Meter must read zero, dead short; I believe it does not...An auto parts store sells these ground straps...A braided, wide flexible flat wire with round connectors on either end...They come in different lengths...Not expensive...One connects the body to the engine...And another connects the negative side of the battery to the body...

Or just take the Honda to a trusted garage...Tell them what I've told you...And that little piece of knowledge lets them know that you KNOW...


I’m happy to help further over the phone at

Jan 12, 2011 | 2001 Honda Accord

1 Answer

My passenger head light went dim and i changed it to a brand new bulb already and it is still low

You got a bad ground connection somewhere.
You have a voltage drop,where you shouldn't have,and as a result the bulb is dim.
Check the bulb socket/connector and related wiring, to that head light

May 21, 2010 | Cars & Trucks

2 Answers

I have no daytime running lights, one headlight is bright on low and high beam. The passenger side is dim at all times. I have changed the bulbs on both side but with no difference. I was told it could be...

the center wire that plugs into the socket is the ground. Always use a OHM meter to check. Then splice in a new wire and ground in to the sheet metal. That way you will receive brighter lights

Apr 06, 2010 | 1999 Pontiac Sunfire

1 Answer

Loyale Lights

Before you start 'modifying' the wiring, firstly make sure that the alternator is emitting enough charge.
There is a good chance that the carbon brushes inside, have worn out.
Hope that does it:)

Jul 27, 2009 | 1991 Subaru Loyale

2 Answers

Low Beam Headlights are dim to non existant

the ground wire are dirty or broken pierre

Dec 07, 2008 | 1995 Hyundai Sonata

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