Hi,

My wipers don't work anymore. The electricity is no longer original, I don't have the original harness.
I changed the motor and it doesn't work any better.
I saw on the forum the ground problem on the motor body, so I pulled a cable to test from the minus of the battery.

There's 12C on the top two pins (in blue in my picture) and nothing on the bottom pin, but nothing moves.

Should the small red wire that comes from the bottom of the wiper motor be connected somewhere?

Harness wiper Thoirdgen 85 Z28

 

may not address your problem, but may give some clues https://www.thirdgen.org/forums/elec...w-i-fixed.html