Why is does my 1997 dodge dakota's headlights flicker on and off.

Sorry,I don't know.

If they are flickering on and off, you either have a loose connection or a short in the wiring. If it flickers only from vibration, you have a mounting bracket loose. Look near the connectors to see if you have any ***** wiresand chk the connectors to make sure they are fully seated and connected. Front and back.

check the intelegent control module located on under hood fuse box

have you tried another headlight switch?another thing to check are the grounds and the headlight sockets.turn the headlights on and move wires around.you would be surprised at thing you do an old fashion wiggle test.i'm a 25+ year automotive diagnostic and smog tech.

relay coil may be a bit weak and is sharing power with the headlight relay. Try swapping the relay with the horn relay or another similar one that is non-essential to operation of the car. If that doesn't work, you may have a loose wire on the headlight switch or at the relay socket.

I just had this problem. There was a screw loose on the hi-beam switch. You have to take off the plastic cover on the steering column to get to it. Really simple to fix yourself (5 minutes tops). 4 screws and the turn of a small wrench. Free if you do it yourself, $600 if you take it to the dealer.

check the gound wire and make sure it is secure

interior control module.

my 99 dakota has gone thru 3 switches. I have found that if they do it now ---i take off the instrument guard ---no screws ---
unscrew the headlamp switch ----and spray all movable parts with wd-40 it fixes it for about 3 months. my theory is the switch gets wet from AC condensation and builds up a film that the switch arm just rides on. hope this helps.

it sounds like the wire connectors not on snug. i've never heard of the weather causing this problem.