'95 ITS troubleshooting

[ianb1]

I have a '95 that I have had various problems with and I am now stuck and need help :-(
I have just replaced the brushes as the cart was dead - one of the terminals had become loose and was fried. After replacing the brushes it was still dead. Reading through the troobleshooting guide I was lead to the throttle sensor as I was not getting any voltage on the white pin of the 6 pin conector at the controller.
After popping the lid on the throttle sensor I verified that it was sending 36v once activated but no voltage is present on the white side of the ITS.
Before coughing up the $130+ to replace I want to make sure I am not missing something as it doesn't look like there is much to go wrong on this thing.
Is there a way to test it?
Much thanks in advance

Cheers,

Ian.