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Headlight wiring diagrams please?

Tiny
STREETSERVANT
  • MEMBER
  • 2002 NISSAN ALTIMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 11,000 MILES
The headlights on my altima have started going on and off and do not stop. What is causing this and how do I fix it? Thanks
Friday, August 15th, 2008 AT 9:53 PM

10 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Does it happen when the vehicle is not running?

Do you have an anti-theft system. Factory or aftermarket?
Is it a random blinking or a steady consistent flashing?
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Saturday, August 16th, 2008 AT 7:22 AM
Tiny
STREETSERVANT
  • MEMBER
  • 6 POSTS
The vehicle is rebuilt, there is no alarm system. Both lights flash on and off when the car is running. It started when the lights where on auto, turning them on manually they stopped flashing for a short time then both started flashing again.
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Saturday, August 16th, 2008 AT 9:08 AM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Does it have Daytime running lights? Rebuilt huh? Need to find where the pulse is coming from with a test light. Here are the headlight wiring diagrams and a guide to help you test the wiring

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know what happens.
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Saturday, August 16th, 2008 AT 9:45 AM
Tiny
STREETSERVANT
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  • 6 POSTS
It does not have daytime running lights. When it became dark last night the flashing stopped. They are not flashing today.
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Saturday, August 16th, 2008 AT 12:42 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Hmmm. Just drive it in the dark. ;-)

IF it continues, I'll get the other diagram. Surprised it doesn't especially based on the new info. Although, the darkness probably has nothing to do with it, since it is happening in the daylight.
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Saturday, August 16th, 2008 AT 3:37 PM
Tiny
STREETSERVANT
  • MEMBER
  • 6 POSTS
So do you think this caused by a relay problem or a wiring problem on headlight control arm?
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Saturday, August 16th, 2008 AT 7:50 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Anything is possible with a rebuilt situation.

You want to assume that everything was done right. But.

I'm thinking a relay. I'm not the greatest electrical guy by far though. Either the system is is controlled by the ground being interupted or the power being interupted for it to flash. Since it is a consitent type of flash it makes me think internal problem with a relay Do you want the other diagram? IF so, do you want it emailed? You can send a PM with your address to me if you do.
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Sunday, August 17th, 2008 AT 8:42 AM
Tiny
STREETSERVANT
  • MEMBER
  • 6 POSTS
You can e-mail that to me. I will probably check the relay first. Thanks for all your help. I'll definetly use you again. Mike
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Sunday, August 17th, 2008 AT 5:46 PM
Tiny
SIERVO INUTIL
  • MEMBER
  • 1 POST
Service Writer could you please send the diagram to me?
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Saturday, September 12th, 2020 AT 9:31 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

You have attached to a question that is years old.What we ask you to do is start a new question and be sure to include all your vehicle information.Here is the link:

https://www.2carpros.com/questions/new

Hope this helps and we will be looking for your question.Thanks for using 2CarPros.
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Sunday, September 13th, 2020 AT 2:06 PM

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