BGH

I have a 87 TII with a grant steering wheel.
Bought the car a year ago with the
wheel on there. It has the hub for the
Rx7. I pulled it off the other day to
make sure the pins and everything was
aligned, they are. Searched forums
on how to do that. The problem I
think I have now is that I dont know
how to check to see if the sensor on
the hub that has to do with the turn
signal. Any help or education on
this matter would be very nice.