Got pulled over by the PoPo a few nights ago. So he walks up to the car and says "Guess you already figured out that I didn't pull you over for speeding". Come to find out my tail light was not working when my lights are on high but it does work when they are on Dim. Any thoughts or suggestions?
Thanks,
Dave
1925 Touring
Bad Ground
Check the switch then check to make sure the tail light is wired to the correct post.
Did he let it slide?
Yea he was just worried some drunk would hit me from behind it was a friday night. He followed me back to my house which was about a mile away.
I have the same problem on my 27. It's probably the connection inside the switch. I've got no power to the tail light connection at the switch on low beams. My tail light only works with the high beams on.
Looking a the diagram above I'd assume the switch first too.
Guys you can do a "quick fix" by getting a couple of 3 amp diodes and doing what is called "diode OR'ing" off the Bright and Dim connections at the barrier strip. If the DIM is not lighting up the tail light then connect the ANODE end of a 3 amp 400 volt diode to terminal "E" and the CATHODE end (Banded end) of that same diode to terminal "D". Likewise you could use a diode from the BRITE connection to the tail light connection if the Brite position is what is failing to light the tail light. In fact you could use 2 diodes if you have no tail light switch connection in either position. I don't recommend this as a long term fix but it will give you a tail light that lights up if the headlightes are working but not the tail light.
Or if the problem is in the switch you could just fix it. This ain't exactly rocket science. I expect if you open up that switch it will be obvious how it's supposed to work, and fixing it will probably be a fairly simple thing.
It happened to me 26 years ago in my '27. He said my taillight was out, but it wasn't; it just didn't show up in his bright headlights. I installed a 15 cp bulb in my '23 roadster to put an end to that. Safer thataway, too.