ES 330 V6-3.3L (3MZ-FE) (2004)
Wiper Switch: Testing and Inspection
WINDSHIELD WIPER SWITCH ASSY
Front Wiper Switch
Front Washer Switch
a. Continuity Check
1. Check the continuity of each terminal of the connector.
b. Intermittent Operation Check
1. Connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (-) terminal 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).