1997 Jeep Wrangler. When I start the jeep the headlights will not come on when it is cold outside. The high beams will not flash either. All other lights work fine. They finally do come on after about ten minutes of warming up. This is only a problem because I work nights.
I have a 98 Dodge Dakota that has been doing the same thing, temp. drops ,and the head lamps dont work, this has happend before and I change the switch, it still is happening , Never thought of the relay.there were time s that this happened and I slammed the hood down and they started working, I feel dumb.
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Ckeck the headlight connections they are notorious for corroding. Check the ground connection for the lights. Pull your dimmer switch back as if you were flashing a car to pass and see if they work there. If they do you have a dimmer switch problem.
There are no relays for the headlights. Your problem could be from the
headlight switch. You would have to check and see if you have power
coming out of the switch on the low beam side. Check with a test light.
I have a 97 TJ and the headlights wouldn't come on but the parking lights would. Funny thing was that if I pulled the brights to flash someone, the brights would work. I took out the old headlight switch ($26 at Checker) and they work again. When I pulled the switch there was one connector that seemed to be corroded. Hope this helps
I have never heard of this before, but I would check the headlight relay. The relay could be sticking internally, although this would be a rare condition. It might also have a corroded socket or terminals. If you can locate the relay, see if it is identical to another relay...and just swap it, being careful to not swap it with something that will not allow the car to run. Relays are cheap. You can also find it by having someone else switch the lights on and off repeatedly, while you listen for clicking under the hood with the engine not running. When you hear clicking, identify the relay by placing a finger on it as the lights are being switched on and off. You will be able to feel the relay switching on and off. Of course, you will have to wait until the lights actually come on when trying to find the relay. Good luck. Chip