I would like to see a schematic of the ignition switch internal circuit. My 67 TR4A switch has 4 positions which I assume are "Acc-Off-On-Start". This arrangement seems at odds with the TR4A wiring diagram which doesn't show "Acc" for the left-most switch position (if that's what its meant for). Also, it doesn't show switch terminal numbers, in particular, the correct "Start" terminal.
Moe Morin
Moe Morin