69 Headlamp Problem

[timhahn]

I am having a problem with my headlights. When they are on low beam they will not work but when I switch them to the high beams they work fine. Any ideas or suggestions?

[77thor]

Most likely it's the headlight dimmer switch on the floor.
Those things are notorious for going bad.

[tom]

Not probable, but since different filaments are used for low beam and high beam, it is possible both low beam filaments are out.

[timhahn]

Thanks for the help! I have an extra headlamp which will allow me to check the bulb first. I still think it is the floor switch but I have an easy way of checking the bulb.

[mrdetails]

I had the same problem and it was the switch. The bulbs are a pain to change. Remove the connector from the switch and jump the middle terminal to either end with a piece of wire to check. You should be able to "peal" the carpet back without removing the kick panel.
Good Lucl

[77thor]

Weird. I found the issue with my 69 Camaro....
if I pulled back the carpet to expose the dimmer switch, my headlights would work OK (standard & high-beams).
Apparently the switch was hanging up on the rubber carpet grommet. I pulled that grommet out of the carpet, re-installed, and it works great now.