Wiper Switch: Testing and Inspection
WIPER SWITCHINSPECTION
1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY
a. Continuity Check
1. Check the continuity between each of the terminals of the connector.
b. Intermittent Operation Check
1. Connect the voltmeter (+) terminal to the terminal 7 (+1) of the connector, the voltmeter (-) terminal to the terminal 2 (EW) of the connector.
2. Connect the battery (+) to the terminal 17 (+B) of the connector, the battery (-) to the terminal 2 (EW) and the terminal 16 (+S) of the connector.
3. Turn the wiper switch into the INT position.
4. Connect the battery (+) to the terminal 16 (+S) of the connector for 5 seconds.
5. Connect the battery (-) to the terminal 16 (+S) of the connector. Operate the intermittent wiper relay and check voltage between the terminal 7 (+1) and the terminal 2 (EW).
c. Operation Check (Front Wiper)
1. Turn the wiper switch into the OFF position.
2. Connect the battery (+) to the terminal 17 (+B) of the connector, the battery (-) to the terminal 16 (+S) and 2 (EW) of the connector.
3. Connect the voltmeter (+) terminal to the terminal 7 (+1) of the connector, the voltmeter (-) terminal to the terminal 2 (EW) of the connector. Turn the washer switch ON and OFF and check voltage between the terminal 7 (+1) and the terminal 2 (EW).