Invaderjim

I checked the plug with a test light and one of this wires is getting power. Ill try what you suggested and see what happens..If nothing could it be another bad sensor?

I replaced the one with the gear. Still have the same problems and the code 42.

Recently bought a 91' Ls400 and it has a dead speed. Speedo, Trip, and Odometer all don't work, and the O/D off light is flashing. Replaced the No.1 Speed sensor which solved nothing, and even replaced the cluster (needed it anyway) to no avail. Checked the tranny code after replacing the speed sensor and it's still throwing a code 42. What are the chances I bought a bummed speed sensor? Is there anything else I should look into?