Sounds like you wired up the neutral switch.
This is for FT DR but should be similar:
On the 6 wire plug:
The position of G/BG is low light switch
The position of B/LR is diff lock switch
The position of BW/G is reverse (mine was actually GW/G)
On the two wire plug:
LR/B is neutral switch (or rather in any gear its "on" in neutral its "off")
All are simple on/off switches and not to ground or anything. Actual wire colors may vary slightly. Use the wire position to locate.
Again, not to restate the obvious, just to break it down. Also if you didn't get the 6 wire plug end from the donor car, if you follow the 6/2 wire plugs back up towards the rear of the tranny, you will find the switches all originate with a twi wire male end that is very common. In my case, I had several of the female ends I clipped off unused wiring.