I installed a Voyager brake controller in my '65 Pickup tonight. I put the white wire to ground (bolt that mounts steering column to dash), the red wire to the stoplight switch (wire that has power when brake pedal depressed) and the black wire went to a 20A fuse on my fuse panel that is only hot with the key on. I wanted to test and make sure it was working OK before I finished up all the wiring but the blue wire has 12 volts at it at all times, even when pedal not depressed. I double checked the red "trigger" wire and it only has power when pedal is depressed. Does this seem correct or am I somehow getting the 12 volts to the blue wire by bypassing the red trigger wire? Don't know how this can happen but if I hook the trailer up, the brakes will be on all the time. Any ideas???
I may have answered my own question after a visit to the Tekonsha site and their FAQ's.
"[b]Q.) There is 12 volts on the Blue Wire all the time.
A.) This is normal operation. The VoyagerŪ sends a low current voltage checking for the trailer. Once the Voyager has a complete circuit to ground on the Blue wire. Then the Green light
will come on and the voltage will disappear. "
Have to research it a little more when I get home tonight.