[FrenchToast]

Yes check the fuses.

If it only goes up/down when jiggled sounds like a wiring problem perhaps. Check the connection to the headlight motor, also check the ground wires for it. Also check the connection to the switch on the dashboard.

Test the voltage to the motor, could have a bad motor.

There is also a relay on the headlight motor (VERY hard to access), but don't even think about that unless nothing else works.