Wiper Switch: Testing and Inspection

WINDSHIELD WIPER SWITCH ASSEMBLY




a. Continuity Check










1. Measure the resistance according to the value(s) in the table.

b. Intermittent Operation Check
1. Connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (-) terminals to terminal 2 (EW) of the connector.
2. Connect the battery (+) to terminal 17 (+B) of the connector, the battery (-) to terminal 2 (EW) and 16 (+S) of the connector.
3. Turn the wiper switch to INT.
4. Connect the battery (+) to terminal 16 (+S) of the connector for 5 seconds.




5. Connect the battery (-) to terminal 16 (+S) of the connector. Operate the intermittent wiper relay and check voltage between terminal 7 (+1) and terminal 2 (EW).




c. Operation Check (Front Wiper)
1. Turn the wiper switch OFF.
2. Connect the positive (+) lead from the battery to terminal 17 (+B) and the negative (-) lead to terminals 2 (EW) and 16 (+S).
3. Connect the positive (+) lead from the voltmeter to terminal 7 (+1) and the negative (-) lead to terminal 2 (EW).Turn the washer switch ON and OFF and check voltage between terminal 7 (+1) and terminal 2 (EW).