Wiper Motor Test

Testing Pulse W/S Wiper-Washer Switch:

Wiper-Washer Switch Check Chart:

Check motor operation before removing wiper assembly from the car. Disconnect wiring harness from wiper assembly before performing the following checks:

1. Apply a (+) 12 volt DC (source) voltage to wiper connector pins as shown in the first image. If the motor runs in all operating modes (Lo, Hi; Park & Pulse), perform the voltage and continuity wiper switch tests as shown in the second and third images.

2. If the wiper motor does not run in any one or all of the operating modes, refer to the wiper/washer motor "Diagnostic Procedures Reference". Wiper/Washer Motor Diagnostic Chart