I am currently trying to get this lock up switch working correctly, but as of now it almost works opposite. I am using a 3 prong led rocker switch and have power and ground hooked up so the light does come on. I have B11 tapped into and ran right to that switch as well as the transmission relay removed and the jumper in place.

The part that stumps me is when i engage the switch, it keeps the trans from locking. If I am crusing and the torque converter automatically locks, and I flip the switch it will unlock it and keep it from locking, exactly opposite of what it is supposed to do! But when it is not engaged and the trans automatically locks and I giv it some throttle it unlocks just like it is supposed to do...

Can anyone help me out as to what my problem is

 

I am one of the rare few who run into this problem huh...

 

Try unhooking power to the light. Power may be back feeding from the light to the pcm. So instead of a ground to B11, you are giving it power.