Wiper Switch

Check the continuity of each terminal of the wiper switch assembly connector. See INSPECTING FRONT WIPER/WASHER SWITCH CONTINUITY . See Figure.

INSPECTING FRONT WIPER/WASHER SWITCH CONTINUITY

Switch Position

Tester Connection

Specified Condition

Front Wiper Switch

MIST

7 (+1) - 17 (+B)

Continuity

OFF

16 (+S) - 7 (+1)

Continuity

INT ⁽¹⁾

16 (+S) - 7 (+1)

Continuity

AUTO ⁽²⁾

16 (+S) - 7 (+1), 4 (AUTO) - 14 (E)

Continuity

7 (+1) - 17 (+B)

Continuity

17 (+B) - 8 (+2)

Continuity

Front Washer Switch

OFF

.....

No Continuity

11 (WF) - 2 (EW)

Continuity

⁽¹⁾	Without AUTO wiper system.

⁽²⁾	With AUTO wiper system.

Check the intermittent operation as follows. Connect the voltmeter (+) terminal to terminal No. 7 (+1) of the connector, the voltmeter (-) terminal to terminal No. 2 (EW) of the connector. Connect the battery (+) to terminal No. 17 (+B) of the connector, the battery (-) to terminals No. 2 (EW) and 16 (+S) of the connector. Turn the wiper switch to INT. Connect the battery (+) to terminal No. 16 (+S) of the connector for 5 seconds. Connect the battery (-) to terminal No. 16 (+S) of the connector. Voltage should be as shown in illustration. See Fig 1.
Check the front wiper operation as follows. Turn the wiper switch to OFF. Connect the battery (+) to terminal No. 17 (+B) of the connector, the battery (-) to terminal No. 16 (+S) and 2 (EW) to the connector. Connect the voltmeter (+) terminal to terminal No. 7 (+1) of the connector and the voltmeter (-) terminal to terminal No. 2 (EW) of the connector. Turn the washer switch to ON and OFF. Voltage should be as shown in illustration. See Fig 2.

Fig 1: Inspecting Intermittent Wiper Relay Voltage

Fig 2: Inspecting Front Wiper Switch Voltage