The dimmer, on my wiring diagram, gets a green (from headlight switch) and a brown to the dim-able lights.

That brown wire carries voltage to all the illuminating lights, each also has a black wire for ground.

The dimmer is a good suspect - they do fail. Get a handful from a junkyard, same part on 240s from 1980 to 1993.


The dome light and hatch lights are wired so that the switch is on the ground side. See what happens if you unscrew and pull out the door switch and you ground the wires there.

BTW, if you disconnect a wire from a door switch, first tie a string arond the wire. Those wires are real short, and if one snaps back inside the hole you will have a large PITA of a job to get the @#$@% thing back out.

Good Luck,

Bob

:>)