Thank you for the donation.
I would suggest checking the power steering belt tension. If it is ok, you need to check the fluid condition and the valve body.
Hope the chart and wiring schematics helps.
WINDSHIELD WIPER MOTOR WILL NOT RUN
1. Check for blown fuse. If fuse is not blown, go to step 3). If fuse is blown, replace it and check motor operation in all switch positions. If motor is still inoperative and fuse does not blow, go to step 3).
2. If fuse blows, disconnect motor wiring connector and replace fuse. If fuse does not blow, motor is defective and should be repaired or replaced. If fuse blows, switch or wiring is at fault.
3. Position panel switch in low-speed position. If motor can be heard running, check motor output shaft. If shaft is not turning, replace motor assembly.
4. If shaft is turning, check drive link to output shaft for worn parts or disconnected components. If motor cannot be heard running, connect a voltmeter between motor terminal "L" and ground strap.
5. If no voltage is present, check wiring and switch. If there is about 12 volts at terminal "L", problem is open ground circuit. Ensure mount is free of paint and mounting nuts are tight.
Page 1 of 1 WIPER/WASHER SYSTEM -1988 Plymouth Voyager 9/9/2008
Monday, September 8th, 2008 AT 11:07 AM