Wiper Switch: Testing and Inspection

INSPECTION




1. 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 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 (+1) and terminal 2 (EW).