How do you remove and replace headlamp bulbs on 1994 Honda Accord?

You may have to remove the battery and air intake housing to gain access to the back of the passenger-side headlight assembly. Next you remove the (white) wiring harness plug by manually pressing it and pulling down. If there is dust accumulated inside the wiring plug and it doesn't easily come off, you may have to push it down with a screwdriver. Next there should be a black collar that rotates around the light bulb base (turn counterclockwise to Open). The collar itself will not come out. Once you rotate it, the bulb should pop out the back of the headlight assembly.