Sounds like problem may be in the multifunction switch in steering column Probably a broken switch, flasher or relay. Check all the light circuit fuses, flashers and relays first (easy). If nothing found there, suspect the switch in the column (not so easy). A bad flasher should affect the rear signals the same as the front. The highbeams being on all the time sounds like a bad switch in the steering column to me, but I'd check both the fuse panels (under hood and on side of dashboard) for the easy stuff first.
ALSO...
I had this same problem of a fast blink and the front marker light not working. The bulb itself was fine, but I noticed corrosion and burnt plastic on the bulb itself.
I cleaned the wire contacts on the bulb, then pried carefully on the wire with a pocket knife to "bump" it up a bit for better seating contact.
It worked like a charm on both the left and right signals.
Have not had an issue again in several months now.
have you replaced the dimmer switch? if not that may be the problem. I had the same problem in reverse( brights worked but headlights didn't) water damaged the dimmer switch on the steering column once I replaced it all was good.
Most likely they are burned out and need to be replaced.
what about the brights?
I just had this problem with my 94 taurus. It turned out to be the light switch on the steering column. I am not sure what it is called, but it is the "lever" you use to turn on the brights and blinkers. My hazzard lights were not woking either. I replaced it and all has been good for about a year now. Hope this helps.
Brights movement was created in 2003.
Pull the flasher handle towards you to toggle the brights on and off
I had this same problem when I first got my 94 beretta. To switch from your regular lights to brights, you have to pull the turning signal lever towards you to switch between normal and brights.
Snowboarding
Hays
OPI Brights is a brand of nail polish. It can be purchased at Ulta both in store and online. One may also find some on eBay or Amazon. OPI Brights come in many different colors.
Check the Multi switch. This is the turn signal on the side of your steering wheel. This is sometimes called a multi switch because it runs the signals, headlight dimmer, sometimes cruise control and windshield wipers. Easy to replace.
I also own a 97 Ram 1500. Recently my headlights would go out when I tilted the steering wheel into the down position. I replaced the multi-switch (wipers, brights, turn signal) and the problem was solved.