Variable Speed Windshield Wiper '93 YJ

[MRFR2CWO4]

Hello and Happy New Year,

I own a '93 YJ and since I have owned it the wipers only go a single speed (I believe it is slow/continuous speed, but I do not have a frame of reference). I am wondering if anyone has any advice on how to troubleshoot and isolate the the defective component(s) so that I do not inadvertently easter egg the solution and throw away good money. I am not even sure how to start troubleshooting, and unfortunately live in a location with an absence of decent non-dealership automotive electricians.

Thanks in advance,
Rob

[superj]

test the variable switch assembly in the wiper stalk. its probably that but you can find the wires from it down along the column, above the foot area, and put a multimeter on them set to ohms. you will have to search for a wiring diagram to know which colors wires though because i do not know that