Anyone know what the wiring is at the plug on the fuse box for the ignition switch? I found 4 out of 5 using alarm diagrams.

I need to know what the white/black stripe wire is for.

I already have:
white=12V
yellow=accessory
black/white stripe=starter
black/yellow stripe=ignition


I'm trying to troubleshoot an occassional no crank from position three. And until I get the money for a new switch and tumbler, I want to know what I can do to jump the car if it finally doesn't start. Auto tranny.


Or.... with the key in position two, can I just jump 12V from the white wire over to the black/white wire to crank the motor?