Wiper Switch: Testing and Inspection

Terminal Identification:

Reference:

1. INSPECT FRONT WIPER AND WASHER SWITCH CONTINUITY

Reference:

2. INSPECT REAR WIPER AND WASHER SWITCH CONTINUITY
If continuity is not as specified, replace the switch.

Terminal Identification:

Reference:

3. INSPECT COMBINATION SWITCH CIRCUIT
Disconnect the connector "B" from the switch and inspect the connector "B" on the wire harness side, as shown.
If circuit is not as specified, inspect wire harness or power source.

4. INSPECT INTERMITTENT WIPER OPERATION





a. Turn the wiper switch to the INT position.
b. Turn the intermittent time control switch to the FAST position.
c. Connect the positive (+) lead from the battery to terminal B18 and the negative (-) lead to terminal B16.





d. Connect the positive (+) lead from the voltmeter to terminal B7 and the negative (-) lead to terminal B16, and check that the meter needle indicates battery positive voltage.





e. After connecting terminal B4 to terminal B18, connect B18 to terminal B16.
Then, check that the voltage rises from 0 volt to battery positive voltage within time as follows.
If operation is not as specified, replace the switch.