I have a 69 Elky that has the following issue. Everything works on the drivers side . On the passenger side the light works when you turn on lights but the brake light does not work and the turn signal does not work. I have done the obvious and replaced bulb. I have disassembled and wiring looks ok(to me at least) Any idea where to start looking..

Get a test lite and check the wires at the lite socket. Check the socket real good. If no results lift the carpet and start checking the wires with a test lite, when you are done poking around with the test lite, If possible put some silicone in the holes you just made. You will get it fixed, Just keep looking. Bob

Sounds to me like a turn-signal switch problem (assuming the pass. side works correctly.

The TSS makes/breaks the circuit between signalling and brake light functions. If the little brass "fingers" get bent/broken/arc'd you'll lose one side or the whole thing.

Back the car up to a wall (or get a helper), switch on the ignition, and gently fiddle/push/pull on the turn signal lever... you may get lucky and complete a circuit. This'll verify the switch is bad.