<VV> Brake light problem on 69 Monza Convertible

[ChiefTAM at aol.com]

I am looking for a few ideas on a problem I am having with the brake lights 
 on my 69 Monza Convertible.  I didn't have any brake lights at all and I  
put in a new brake pedal sensor switch, the push button switch that  mounts 
before the brake pedal mount and senses when you push on the  brakes.  I now 
have a brake light on the driver's side, but nothing on the  passenger 
side.  I have running lights, and I have switched bulbs, so I  know they are 
good.  It doesn't seem to be a problem with grounding.
 
I took an electrical tester and I have power going to the driver's side  
when the brake pedal is pushed, but there is nothing showing on the passenger  
side when the brake is pushed.  Do the brake lights have a separate line  
from the front of the car, or do they have just one power line that runs to 
the  driver's side and then connects over to the passenger side?  Any ideas 
on  what I can do to repair or what I need to look for?  Thanks.
 
Todd
Corvair MN