There was an article in the "Roadster Review" @ 10 years ago centered on theft
prevention. I believe that it had both starter and ignition circuits. It was
designed to open the KEY cranking circuit. The car would simply not crank. A
second switch was in the ignition circuit HOT side, meaning that even if you
got it to crank (by jumping the terminals at the starter solenoid) you would
still have a 'no-start' condition.
Even more frustrating for a would-be thief would be to put the interrupt switch
on the switching side of the coil. This would allow a thief to 'hot-wire' the
coil but still have no spark. This would of course necessitate soldered
connections as well as a quality switch so that there was no effect on the
coil's current flow.
Unwanted 'voltage drop' is the bane of all electrical service, repair and
diagnosis. 70%-80% of all wiring problems are unwanted voltage drop. Corroded
connectors and poor grounds. "Shorts" are extremely rare and are usually the
result of physical damage.
Damian Hall
68 2000 and other gems
NS Canada
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