2003 Mitsubishi Lancer Logo

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Jennifer Q Posted on May 15, 2017

The horn on my 2003 lancer would not stop going off...a continuous blare. The car was off and not running. The only way I could stop it was to leave the headlights on. As soon as I turned lights off, it started again. I left the parking lights on and I took it someplace and they said it wasn't doing it anymore and they couldn't find anything, called Mitsubishi and they said not to bother bringing it in that they had never heard of a car doing that and they would not be able to do anything. Please help!!!

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Gil Her

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  • Posted on May 15, 2017
Gil Her
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A couple of things to try, it may be that your car has an alarm that has been triggered, and the horn is the announcement indicating an 'attempted' theft.

So you can try to find out if this is the case.
If the battery has been drained sufficiently to 'confuse' the electronics, then one way I was able to work around this was to disconnect the main battery and wait a few mins, then reconnect it. The alarm may clear or trigger again.
Sometimes by using your remote you can clear this condition or using your key in the driver side keyhole and going the steps (for my car it was to lock and unlock), for others it could be doing something like this in sequence.

The last resort is to disconnect the horn. (of course then you have no horn and in New York City..this can be a real problem)..good luck

5 Related Answers

Anonymous

  • 82 Answers
  • Posted on Nov 12, 2008

SOURCE: MY 2003 MITSUBISHI LANCER ES WON'T START

You need to tackle this logically. First of all the car has to have fuel and spark to ignite the fuel. You need to establish whether these are present or not. Then go along apporopriate route, fuel or spark.Secondly the spark has got to occur at the right time .There are simple checks you can do to find out if this happening.
To confirm sparks Remove one plug. recoonect lead , hold it in contact with the chassis and turn the engine,you should see spark jump across the plug gap. Dont hold lead with bear hands as it carries high voltage,use an insulated material to hold it in contact with chassis.
similarly you can disconnect fuel input to carbureter and turn engine to see petrol coming out.
Once these two facts are confirmed then it is timing of sparks that remains.
Hope this helps you to go in the right direction.

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Alan Timperley

  • 91 Answers
  • Posted on Nov 28, 2008

SOURCE: How do I replace the headlight in my 2005 mitsubishi lancer

Hi. While looking into your question I came across another posting of the same question for a 2004 Mitsubishi Endeavor and I believe it could help you. I put it in a link below. The instruction are basically the same. I hope this helps. Let me know if I can be of anymore assistance.

2004 Mitsubishi Endeavor Headlight Replacement

Anonymous

  • 1 Answer
  • Posted on May 28, 2009

SOURCE: 2003 Mitsubishi Lancer horn not honking

check all the wiring in the stearing wheel. Cover should screw off from the back side. Make sure the horn is hooked up. Should be in the front bumper. If it still dont work then buy a new one. Should run about fiftenn bucks.

Anonymous

  • 2 Answers
  • Posted on Jan 22, 2010

SOURCE: I have no heat in my 2003 Mitsubishi Lancer. When

The cable that pulls the cool/heat switch on the a/c gets weak and it doesnt allow the dial to switch over to heat. You can see that cable and the way its supposed to work on the right side of the gas pedal over it. I usually just use my foot to push that switch over to heat and reach with and pull on it with my right hand to cool.

Anonymous

  • 10865 Answers
  • Posted on Jan 23, 2010

SOURCE: how do I turn out the check engine soon light on Mitsubishi outla

Hello. The check engine light comes on when the vehicle's computer has detected a problem with one of the components in one of the systems. To find out what exactly that check engine light means you have to hook the vehicle up to a computer scanner. Many auto parts stores now offer this scan for free, as do the AAMCO repair shops. After the scan is finished, the scanner will turn out the check engine light. Some vehicles check engine light also turns off if the battery is disconnected for two full minutes. Regards, Joe

PS kindly rate my answer. Thank you. Joe

Testimonial: "Thank you Joe thats what I was looking for."

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