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Dashboard Lights Going Off and On?

December 12, 2020

I have an 2005 Hyundai Elantra. I just put a new alternator and battery into it, but the headlights flicker and the dashboard lights turn off and on. Something is draining the battery, but I just don't know what it is. Any ideas and how to get it fixed would be appreciated.


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Silver Answer Medal for All Time! 425 Answers
December 12, 20200 found this helpful
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Did you do the replacement parts yourself, or hire it done? If hired done, take the car back to them if the problem only occurred after their repairs, as they obviously caused the problem. If you did the repairs, double check any wiring you handled, to make sure all electric connections are clean and tightened, and that positives and negatives were not inadvertently switched. If you need help, Advantage Auto, Auto Zone, and others will do a free diagnostics on the electric system for you, and let you know what's wrong. Good luck.

 
December 14, 20200 found this helpful
Best Answer

So if your headlights are flickering and dashboard lights turn off and on there is a fuze box located under the hood of your car. If you are not sure where to locate this you can google the make and model of your car and it will tell you where to locate it. All cars are different when it comes to the location. After locating the fuze box make sure to open it, nine times out of ten there will be a picture on the fuze box lid indicating the purpose of each fuze.

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My suggestion would be to locate the one for lights and most likely this is what is going on. Any of your local auto part stores carry fuzes or even a hardware store. If you go in and tell them which one you need they will help you. They are really easy to replace. If this does not work any auto part store has a machine they can hook up to your car that will most likely tell you what is going on. Good Luck

 
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July 3, 2020

I have a Ford F250 Power stroke. While driving all my dash gauges and air stops working. They just flat line and then a couple minutes later all is good.

What could be causing this? Also this only happens once in a while. Sometimes not for weeks.

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Gold Feedback Medal for All Time! 949 Feedbacks
July 3, 20200 found this helpful
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You have some sort of electrical short that is causing this problem.
Most likely the reason it only happens once in a while is the bad wire touches another wire or some part of the truck.

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You should also check your fuses.
An electrical short is probably one of the more difficult problems to solve as you may have to check the complete electrical harness to find the problem and as you can see it is intertwined and involves all of your gauges.
This could be dangerous so please get it checked out as soon as possible.

You might try going to a local auto parts store - AutoZone, Advance, Carquest, Pep Boys, most any of these have system checking machines and they may be able to help you. Not all of them will have the machines but keep trying until you find one as a dealer will charge just to check it out.

It's possible you could find the problem if their machine can help you. Otherwise you will have to take it someone (dealer) who has an experienced person working on electrical systems.

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Sorry, but it will probably be an expensive repair.
However, it will only get worse if not fixed and it may start affecting your lighting system or anything else that works off the electrical system.
Try the auto parts store route first.

 

Bronze Post Medal for All Time! 105 Posts
July 6, 20200 found this helpful
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This is an electronic short in the car. My daughter had the same issue in her car, but it is the same as your truck. All of a sudden all the gages would shut off and then after time they would come back on. If this is not taken care of soon the engine will be effected and all of a sudden you can loose power to the engine and the car will stop running.

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You will need to pull over and wait around 40 minutes or so before it cools off and you can go again. In her car they replaced a few electronic switches but they were unable to find the problem and it persisted because she waited too long to have it looked at. That is what they told her.

 
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March 11, 2020

I have Mercedes Benz C180. My dashboard lights go on and off, especially when I accelerate on a high speed and sometimes when I press the car horn. I have taken it to several garages, but it could not be fixed.

Please help out.

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Gold Feedback Medal for All Time! 949 Feedbacks
March 13, 20200 found this helpful
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Start with your local auto stores - AutoZone, Advance, Car Quest, Pep Boys, NAPA, Discount, and Google Auto Part stores foreign with your zip code; start taking to each one to see if they will run their diagnostic machine on your car.

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This is a free service and some stores have more elaborate machines than others. Keep going until someone finds the problem.

This is probably a short in your electrical system and one of the most complicated things to find and repair. Sometimes it is just a faulty fuse but usually in the wiring. This may be in your electrical harness and that might have to be replaced (which will be very expensive).

Just try these auto parts stores first before taking your car to a foreign service shop so you will know a little about the problem before they tell you their diagnosis.
This is a safety hazard as it might cause more damage like a shortage and burn up the wiring system.

 
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March 11, 2020

I have a 2006 Hyundai Elantra and 1 headlight, the turn signal/headlight switch, and dash lights act as if they have a short. When I turn my lights on, most of the time my driver light won't come on. I get out and smack it and it comes back on, but will sometimes or several times keep doing it as I drive. If I touch the switch, my dash lights go off and on too. Any suggestions on what may be happening?


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September 3, 2019

Why do some of my dashboard lights come on and my speedometer works
only sometimes?


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August 23, 2019

I have a 2000 Ford Windstar van. My dash lights come on for a few minutes and go back out. What would cause it to do that?


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August 6, 2019

I have a 2003 Chevy Silverado and periodically all the dashboard lights come on while I am driving and then go off. It has more than 300,000 miles. What could be causing this?


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July 26, 2019

I have a 2006 Grand Jeep Cherokee. All my lights in the dashboard flicker off and on. What could be the problem?


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July 21, 2019

I have a 2008 Land Rover Discovery (3) and the dashboard lights shut off and occasionally including the indicators, but it still drives, why is this? It is like the engine doesn't cut out. It's very dangerous as this shuts off the indicators.

Answers greatly appreciated.

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July 16, 2019

I am in the process of replacing the car radio of my 2014 Subaru Forester. At one point I started the ignition on second position (acc) then off again, the display was on then off immediately and all features and buttons were not working. I restarted the ignition it happened again. I checked all the possible fuses, but could not find any broken fuses. Any suggestions for troubleshooting is appreciated.


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March 31, 2019

My 2006 Honda Civic dashboard lights go off and on while I am driving.


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November 28, 2018

I had my 2014 Yukon xl serviced. The service included changing and installing new spark plugs and wires. When I drove the vehicle after leaving the service department, the lights on the dashboard and the interior lights started flashing off and on and the door locks repeatedly locked and unlocked.

It did this for about 5 times. What could have caused my Yukon to do this? Since then, my remote start doesn't work and my seat heater doesn't work.

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October 18, 2018

I have a 2000 Nissan Altima. The dash lights come on once in awhile and cut off once in awhile. Suggestions on solution?


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Gold Post Medal for All Time! 677 Posts
October 18, 20180 found this helpful

Intermittent problems like this point to faulty wiring, or a short in the wiring. You will need to have the car serviced.

 
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