Sometimes fresh eyes help see solutions to problems, I decided to step away from the transmission for a little while since it kind of has me stumped. I decided to take out the old brake and clutch combo and replace it with the brake pedal I grabbed from an automatic transmission equipped TJ that was parted out.
When I put the two switches side by side, I noticed that the manual only has 4 pins and the auto has 6. The FSM refers to this as C302 in the wiring diagrams. The pin closest to the plunger (the leftmost in the picture) is #6, the furthest from the plunger is #1.
- Pins 1 and 2 are normally open. Depressing the plunger closes the circuit. This is used for the brake pedal sense circuit.
- Pins 5 and 6 are normally closed. Depressing the plunger opens the circuit. This is used for the stop lamp circuit.
- Pins 3 and 4 are normally open. Depressing the plunger closes the circuit. This is not used.
There appears to be no other difference in the circuits between auto and manual, so I decided to use the switch that came with the auto in case I need to use the extra pair of pins for some reason.
Here's another tidbit. I spent a while fiddling with the switch trying to remove it. Here it is mounted, note it is square to the bracket.
I messed with the retaining clips for a while but couldn't figure out how to remove it. Eventually, I looked in the FSM to see how you remove the thing, and it's pretty simple. Look at the switch from the back (white-ish part), and rotate it counter clockwise and it comes right out. This releases the switch. Here's a pic from above with the switch rotated and ready to be removed. (Note the black retainer is no longer inline with the white switch body.)
It took me a minute or 10 to figure this out, so hopefully someone finds it useful.