Wiper Motor: Testing and Inspection
Wiper Motor Operation Inspection1. Make marks (1) as shown in figure with wiper motor stopped.
2. Connect battery positive (+) and negative (-) terminals to wiper motor connector terminals as shown to operate motor at low speed. If wiper motor does not operate, replace wiper motor.
3. Connect battery positive (+) and negative (-) terminals to wiper motor connector terminals as shown to operate motor at high speed. If wiper motor does not operate, replace wiper motor.
4. Perform the following steps to check that wiper motor stops at wiper park position.
a. Connect lead from battery positive (+) terminal to terminal "1" of wiper motor connector. Connect lead from battery negative (-) terminal to terminal "5" of wiper motor connector. Wiper motor will start rotating.
b. Disconnect lead from terminal "1" of wiper motor connector to stop wiper motor when marks are not aligned.
c. Connect jumper between terminals "3" and "1" of wiper motor connector. Then connect lead from battery positive (+) terminal to terminal "2" of wiper motor connector and connect lead from battery negative (-) terminal to terminal "5" of wiper motor connector. Check that wiper motor starts rotating again and then stops when marks are aligned.
d. Repeat Step 1 to 3 several times to check that the motor stops every time when marks are aligned.
If check result is not satisfactory, replace motor.