97 Passat Dash Light Dimmer test.i want to test the rheostat that dims the dash lights. I've removed the light switch assembly it is in one unit a rotary/pull knob for the parking lights headlights and driving lights and a thumdial rheostat for the dash light dimmer. One large electrical connector goes into the back. I'd like to test the rheostat and need to know which terminals I need to check resistance between. Alternately if I knew the wire color that went to the dash lights I could trace it back. thanks
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