Mechanics

STRANGE ELECTRICAL LIGHT PROBLEM!!

1999 Ford Taurus

I have a 1999 Ford Taurus with 82,000 miles on it. The problem is that when you turn the light switch to the parking lights option nothing happens, but when you turn the switch to the headlights option ONLY the two headlights go on. I checked a couple things and the turn signals WORK, BRAKE lights WORK, the switch itself is good, all fuses are good (I triple checked every single one), hih gbeams WORK also. Another thing is that when you lock the car with the remote, the lights flash once, so the bulbs are all ok. Does anyone have any idea what the problem could be?
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Milosz16
September 11, 2006.



Are you by chance talking about the day time running lights that come on when you turn the key. If so change the daytime running light module it is mounted in front of the driver side tire up in the wheel well.(NOS) are your park light bulbs good even know the blinkers are ok thoes bulbs have two fiaments one set for park light and one set for turn also check you grounds to the sockets

Tiny
NOS
Sep 11, 2006.
Yes all the bulbs are good and they all work perfectly in other cars, and my car is not equipped with daytime running lights. Also WHEN I LOCK THE CAR USING THE REMOTE ALL THE LIGHTS BLINK LIKE NORMAL SO THE BULBS AND THE GROUNDS ARE GOOD. With that said, ANY OTHER SOLUTIONS? THANKS.

Tiny
Milosz16
Sep 12, 2006.
Replace your head light switch (NOS)

Tiny
NOS
Sep 12, 2006.
I did the head light switch is good I tested it in another taurus.

Tiny
Milosz16
Sep 12, 2006.
I'm also wondering if there is a relay for the lights, because apart from everything else thats the only other thing I can think of. There is a bunch of relays that are NOT mentioned in the car manual and the repair manual so I have no idea what they are used for.

Tiny
Milosz16
Sep 12, 2006.
Does your repair manual give you any wiring diagrams to look at. You need to find the color coded wire that runs the park lights at the switch. Take a test light probe that wire and turn the switch on if it lights there, that is good. Then you need to go to the outside under the hood find that same wire again and probe with a test light with the switch on if it lights there, then thats good. You got to keep doing this till you find where the power loss is. Just cause they work with the remote don't mean nothing cause there on a different circuit because of the anti theft system. No one said this would be easy. Just take your time and you will find it wiring can be a real pain especialy in a ford. I will try to work on this with you as much as I can. Just have patience. I have a mini van in the shop i'am working on right now that a mouse got into and chewed up a bunch of wires under the dash so I have the whole das settint in the shop floor because parts of the AC don't work and parts of the heater don't work and it is all electronic.I'am an auto tech I work on stuff 8 hours a day 5 days a week and it don't come easy at times. So your just going to have to find where the power was lost. (NOS) yes there are relays but not for the parklights just the headlights because they draw more power than the parklights.

Tiny
NOS
Sep 13, 2006.
At the switch look for the brown wire. Turn the switch on and test light this wire if the light lights it is good if it don't there is a problem in the plug that plugs onto the switch. But the key to your whole problem is in that brown wire. I looked this up in my books at work hope that helped you better. (NOS) 8)

Tiny
NOS
Sep 15, 2006.
Thanks for the advice, i'll check it out tomorrow and get back to you on my progress.

Tiny
Milosz16
Sep 16, 2006.
I FINALLY FIXED THE PROBLEM, THANKS FOR ALL THE FEEDBACK. THE PROBLEM WAS THAT THE PURPLE WIRE WASN'T GIVING ENOUGH POWER BECAUSE OF A BREAK IN IT. I BOUGHT AN (ADD A FUSE) THING AND JUST PUT IT INTO THE CIGARETTE LIGHTER FURE, BECAUSE I DON'T USE IT ANYWAY, AND HOOKED THAT WIRE UP TO WHERE THE PURPLE WIRE WAS ON THE SWITCH AND IT WORKS!

AGAIN THANKS FOR THE INFO AND I HOPE THIS RESPONSE HELPS SOMEONE OUT THERE WITH THE SAME PROBLEM.
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Tiny
Milosz16
Oct 26, 2006.

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