Now that things are getting cold outside, I’ve got to focus on things I can do inside. One thing that’s been bugging me since they stopped working are my wipers, which has proven to be problematic when it rains. I’ve got two spare wiper motors in my stash to work with and a can of electrical cleaner; I need some bearing grease to repack the interior and a clear set of instructions as to how.
1. My first clues about wiring are on the Binder Planet here:
It is a three wire motor with the common being the internal ground.
The wires to and from the Scout switch are:
82 +12 hot
82A +12 after going through breaker, feeds the park switch on the wipers, ( Green wire on Wiper plug) and hot into the switch.
82 B feeds high speed on the wipers, ( Black wire on wiper plug.)
82 C feeds low speed on wipers, (Red wire on wiper plug. )
A 187 goes to washer motor, on this setup, I have here, it`s a green wire, the rest of the wires are black..
The Scout switch in low speed position closes the circuit from 82 A to both 82 B and 82 C wires,
In high speed it closes the circuit from 82 A to 82 B only.
Also,
Check for frozen/binding linkage, especially the wiper pivots. Also running a separate ground from the motor case to the body helps, lots of times the ground path through the motor mounts isn’t very good and gets fixed accidentaly during motor replacement.
2. Key information for inside bench testing is here:
I would clean the inside good with electric parts cleaner. Then bench test it with a battery charger.
Trickle charge 2 amp for low, and 10 amp fast charge for high.
So, if and when I ever get some free time, this will be my next project.