Wiper Switch: Testing and Inspection

WINDSHIELD WIPER SWITCH ASSEMBLY




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




Front Wiper Switch




Front Washer Switch




Rear Wiper Switch

b. Intermittent Operation Check
1. Connect the voltmeter positive terminal to terminal 7 (+1) of the connector and the voltmeter negative terminal to terminal 5 (EW).
2. Connect the battery positive cable to terminal 8 (+B) of the connector and the battery negative cable to terminal 5 (EW) and 6 (+S).
3. Turn the wiper switch to the INT position.
4. Connect the battery positive cable to terminal 6 (+S) of the connector for 5 seconds.




5. Connect the battery negative cable to terminal 6 (+S) of the connector. Operate the intermittent wiper relay and check voltage between terminals 7 (+1) and 5 (EW).




c. Operation Check (Front Washer)
1. Turn the wiper switch off.
2. Connect the battery positive cable to terminal 8 (+B) of the connector and the battery negative cable to terminals 6 (+S) and 5 (EW).
3. Connect the voltmeter positive terminal to terminal 7 (+1) of the connector and the voltmeter negative terminal to terminal 5 (EW). Turn the washer switch on and off, and check voltage between terminals 7 (+1) and 5 (EW).