Have 89 Lincoln Town Car, when I activate the high beams they will go off within 20 seconds. There is a "clicking" noise near the headlight switch and the low beams come on most times. Any ideas why ?

The circuit breaker for the headlights is inside the headlight switch.
But if your low beams work and the high beams don't, the problem may be in the dimmer switch.

In the driver side under the dash board ther is light control unit check that

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The multi funtion switch problly has to be replaced,

Hi Steven, I guess you have checked the fuses? Some time (and I'n not saying this is your problem) the fuses are wired in such a way that if one blows (and the fuse is on the earth side of the circuit) there will be an output, but the circuit will either use the earth through the the other bulb or fail to earth. I would also suggest having a look at the relays and their operation. Lastly, check the earth connections again. Regards John

I didn't know they were suppose to automaticly go to high, I thought they were to dim the headlights.

1. Remove the three pin-type retainers, two screws and the radiator defector.
2. Remove the 4 bolts securing the headlamp assembly and remove headlamp assembly.
- Disconnect electrical connector
3. Remove the 3 hex-head bolts and 2 torx-head screws and remove headlamp protective cover.
4. *****Standard low-beam bulb*****
Disconnect the connector from the bulb and remove the low beam bulb.
5. *****HID low beam bulb*****
Release the spring tabs and remove the HID low beam bulb
Disconnect the connector from the bulb
6. *****High beam bulb*****
Disconnect the electrical connector and remove the high beam bulb.
Reverse order to install

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I have a 1991 lincoln that does the same thing, i looked up an solution here and i hope it applies to your car too, i am replacing the lighting control module which is under the dash panel above the accelerator pedal, is a box with four connectors that is held by two screws. You can get one at a junkyard for less than 20$ bucks i got two just in case one didn't work! I hope this helps!

Try headlight relay, could be fuse as headlight flash is on different circuit i think, or could be hi-lo beam switch, good luck

You have a bad mutifunction switch or headlight switch is going bad and is over heating then cooling off comming back on Have a mechanic check it cause there are other things that can cause this. Since it's not blowing a fuse at this time I would say the head light switch is bad.

if this lever is part of the turn signal switch it might be faulty , also the auto dimming might be picking up glare from the bumper check the sensor and make sure it is clean.