Only one low beam working
 

This winter I changed the switch in the floor, and the dimmer switch.
Yesterday I replaced all 4 headlamps with new ones.

When I have high beam on, all four front lights are glowing, but when I hit the switch in the floor going to low beam, only the outer light on the passenger side is glowing, and none on the driver side.

Anyone got any tips for what might be the problem?

Bad bulb or the wires and connections going to it.

The bulb is fine, as I just changed it. And as said, when high beam is on, all 4 bulbs are glowing. So both the wires to it and the bulb must be working.

However, if Im not recalling wrong, the low beam bulbs have 3 contact points in the back, whilst the high beam have two?

Right, Low beam has 2 filaments. One is probably bad. You can pull the plug and check across the lower (neutral) to each side when the low beam is on. If you have power at the plug the bulb is bad.

The outer bulbs have hi and low beam. Seems like the wire to the low beam on the drivers side has a problem.

Thanks for all your replies. Ill get my voltmeter and get to work tomorrow :)