Wiper Switch: Testing and Inspection

WINDSHIELD WIPER SWITCH ASSY
a. Check the continuity of windshield wiper switch assy.
1. Measure the resistance according to the value(s) in the table.




b. Intermittent Operation Check (w/o Rain Sensor)
1. Connect the voltmeter (+) terminal to terminal C11-3 (+1) of the connector and the voltmeter (-) terminal to terminal C12-2 (EW).
2. Connect the positive battery (+) lead to terminal C11-2 (+B) of the connector and the negative battery (-) lead to terminals C12-2 (EW) and C11-1 (+S).
3. Turn the wiper switch to the INT position.
4. Connect the positive battery (+) lead to terminal C11-1 (+S) of the connector for 5 seconds.
5. Connect the negative battery (-) lead to terminal C11-4 (+S) of the connector.Operate the intermittent wiper relay and measure the voltage between terminals C11-3 (+1) and C12-2 (EW).




c. Front Wiper Operation Check (w/o Rain Sensor)
1. Turn the wiper switch to the OFF position.
2. Connect the positive battery (+) lead to terminal C11-2 (+B) of the connector, and the negative battery (-) to the terminals C11-1 (+S) and C12-2 (EW).
3. Connect the voltmeter (+) terminal to terminal C11-3 (+1) of the connector and the voltmeter (-) terminal to terminal C12-2 (EW).Turn the washer switch to the ON and OFF position, and measure the voltage between terminals C11-3 (+1) and C12-2 (EW).







d. Rain Sensor Adjust Switch Operation Check (w/ Rain Sensor)
1. Measure the resistance according to the value(s) in the table.