If the dimmer control is built into the turn signal lever rather than on the floor, then the switch will be inside the left side of the steering colume.
If your asking for the 77 model, it's in the floor on the left side, you use your left foot to press it down to turn them on or off.
The steering wheel will have to come off and then the top cover on the column has to come off and then you will be able to see how the switch comes out, just a few screws.
Turn signal bar?
i dont think they have a fuse.you either have a blown blub or its the highlow beam switch itself
Low beam bulb burnt out? Replace bulb. Bulbs OK? If the dimmer switch is also the turn signal/cruise/headlight on and off switch, you probably have to replace the entire switch.
It might be the high/low beam switch. Had to replace one on my '96 when I had only low beams.
This job isn't too difficult. You have to remove the panel underneath the dash to access the steering column. The hi beam switch is located to the left of the column, and it is held in place by two 5/16" or 8mm screws.
The high beam switch is on the reverse of the turn signal switch arm
Pulling the turn signal switch toward you should switch the lights to the low beams. If that doesn't work, you may have to replace the switch, which means replacing the entire turn signal stalk.
I had a car that had a failed combination switch (the turn signal, hi-low beam, parking lights switch). I could get the lights to come on if I set the switch to high beam, but not low. A new switch and, viola! Verrry expensive to have dealer repair. If this is your problem, hopefully you have a mechanic friend.
It is probably a problem with switch ( the lever ) Or in the wiring (broken wire somewhere)
the inside bulbs are the high beams.