[Joe K]

The light switch "bulb" is held to the bottom of the steering column gearbox by a "bail." This can be unhooked causing the entire bulb and wires to separate from the column.

The bulb in made in two pieces - the upper part which plugs into the bottom of the column, and the lower part where the wires enter. The bulbs halves "separate" by turning each opposing (sort of like the plastic easter eggs) and inside you'll find the "wiper" in the upper half and the switch plate in the lower half.

The switch plate is held only by the presence of the upper half: with out the upper, the switch plates can be pushed up and out of the lower half by grasping the wires.

The switch plates are soldered to the wiring harness. Normal removal is to "demount" the entire wiring harness and snake all this back through the hole in the lower bulb half. It is possible to "unsolder" the wiring harness from the switch plate, but its a remedy probably more challenging than dealing with it by a normal removal.

Good luck with this. Hope you find all as I describe.

Joe K