Engine/Transmission (1998.5 - 2002) converter unlock switch

[dwaller]

I saw a post about using a headlight dimmer switch in the orange and black converter lock-up wire. When I hit the switch, breaking the circuit, the converter does not lock and I don't get overdrive. When I hit the switch connecting the circuit, nothing changes. Unhooking the batteries, returns everything to normal as long as I don't break the circuit again, I do have an ATS valve body assistant, and was wondering is this would affect it. I've got a 99 2500 with triple loc and valve body. Any help will be appreciated