Need HELP Please with a MSD Window Switch

Devin 97 Blue GTS

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:( I just received on Friday my MSD windows switch form MSD after it was modified to work on a Viper, my problem is it does not work. I wired the coil pickup at the PCM’s C3 location 3 (red w/ yellow). Meter shows @ 3000 RPMs no ground on the yellow wire from the window switch and the power is ok. :confused:
 

Jack B

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Take a look in "My Gallery". I have a wiring diagram and connection locations. C3 is the first (front) of the connectors not the third. You may have a hard time reading contact closure since it is a solid state switch and the resistance change is not a true open/close.

Just a note of caution, my window switch was off by 10% OR 600 rpm's near the high set point. You can pick it up on the dyno. If the high point is off the low point will also be off, just check the NOS turn-on from the dyno graph.
 

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