After a random time headlights begin to flicker. High beams cause it to start flashing sooner. Occasionally the flash on lowbeam- but only after about a half hour or more of driving. They would flash for about 15 seconds and then return to normal(lowbeam). High beam will keep it flickering, and they seem to stay "out" for a longer period of time. The headlight switch has been replaced twice - not the issue. Anything found from a google search of "jeep Cherokee headlights flashing" has not worked. Have not done anything with corrosion yet, or the dimmer switch(hi/lo switch).
Best guess is the Hd. Lt. Relay.
Probably will have to be replaced.
Testimonial: "Just swapped it out from our working counter part. not it. Still looking :\"
The hi beam lamps usually draw more currant than the low beam, This explains why Hi beam is effected more than Lo Beam.
The hi beam lamps usually draw more currant than the low beam, This explains why Hi beam is effected more than Lo Beam.
Check the junction box on the firewall for bad or corroded connections.
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SOURCE: 1998 Jeep Cherokee replaced headlight switch, now they don't work
you need to replace the multifunction switch also
SOURCE: 1999 Jeep Grand Cherokee Headlights do not work
I would look at replacing the headlight switch(junkyard will save you money)!
Hope this sheds some light on it!
SOURCE: Jeep Headlights not working. High beam works
had the same problem on my 92....check under the hood on the drivers side,towards the front,there is a "junction box" with all of the lighting wires connecting from the switches to the lights.My wires were all corroded inside,so I cleaned the ends and bought a new box from the local electronic supply store.The problem has not come back.
Cheers
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