Wiper Switch: Testing and Inspection

WIPER AND WASHER: WIPER SWITCH: INSPECTION

INSPECTION

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY





(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:

Front wiper switch





(b) Measure the resistance of the switch connector terminals when the washer switch is operated.
Standard resistance:

Front washer switch





(c) Check the intermittent operation.
(1) Connect the voltmeter positive (+) terminal to terminal 7 (+1) of the connector and the voltmeter negative (-) terminal to terminal 2 (EW).
(2) Connect the battery positive (+) lead to terminal 17 (+B) and the battery negative (-) lead to terminals 2 (EW) and 16 (+S).
(3) Turn the wiper switch to the INT position.
(4) Connect the battery positive (+) lead to terminal 16 (+S) of the connector for 5 seconds.
(5) Connect the battery negative (-) lead to terminal 16 (+S) of the connector. Operate the intermittent wiper relay.
(6) Check the voltage between terminals 7 (+1) and 2 (EW).









(d) Check the front washer operation.
(1) Turn the wiper switch off.
(2) Connect the battery positive (+) lead to terminal 17 (+B) of the connector and the battery negative cable to terminals 16 (+S) and 2 (EW).
(3) Connect the voltmeter positive (+) terminal to terminal 7 (+1) of the connector and the voltmeter negative (-) terminal to terminal 2 (EW).
(4) Turn the washer switch on and off, and check the voltage between terminals 7 (+1) and 2 (EW).