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You didn't specify a year, so here's one from a 1996.
View attachment 3150160
Just use a multimeter. White/black can be assumed negative. It's from a 85-90 4runner
Yes, that’s literally what I am doing now. Wow, I didn’t know that switch would be that old. Thank you for that.
Using your attachment, I have verified that the switch is good. Any chance the remaining part of that EWD might have what each pin goes to?My picture failed to attach. Edited