Trying to determine which is not working...the wiper motor, or the wiper switch. The car's an '83, and the wiper motor and switch were replaced about 4 years ago. When they last worked, there was a irrating grinding like noise, that I assumed meant I'd need to lubricate the wiper arms.
Now the wipers will not work in any position. The motor seems to be locked up, I can't turn the knurled drive shaft, either with a pair of plyers or with it attached to the wiper arms.
With a multi-meter, I checked the plug from the firewall to the motor, and found a couple of different pin combinations that are activated by the switch, but after reviewing the wiring diagram, I'm still having a hard time determinining what pins should be active for the different switch positions.
Anyone have a way to bench test the motor, and/or some ideas on the pin combination that should be active for the different switch positions.
Thanks
