Hello & Welcome back,
Can you tell me the Model of your vehicle?
Let me send you the procedure for replacing the switch for the 87 El Camino so that you can see if they match what you have. If not, I will see what I have on the S10. I am assuming this is the same switch for the wipers too (the Multifunction Switch).
Please let me know if these look correct for what you have, or if I should try the S10.
Thanks, XXXXX XXXXX
Let's try the 87 S10 instructions. Maybe there is something in there that is missing in the other instructions.
Please let me know if that helps.
OK - That is all I can find on this. I will open this question back up to see if another expert can help you.
Thank you for your patience.
I'm sorry we couldn't help you more.
Good luck at the mechanic.
Take Care, Greg A.