1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Column cover.
b. Wiper and washer switch.
3. Use a tester to measure and verify that the continuity between the rear wiper and washer switch terminals is as indicated in the table.

If the continuity is not as indicated in the table, replace the wiper and washer switch..

General
Windshield Wiper And Washer Switch InspectionEngine Coolant Temperature (ECT) Sensor Inspection
Resistance Inspection
WARNING:
When the engine is hot, it can badly burn. Turn off the engine and wait until
it is cool before removing the ECT sensor.
ECT Sensor No.1
1. Remove the ECT sensor No.1..
2. Place the ECT sensor No.1 in water with a thermometer, and heat the water
...
Oil Pressure Switch Inspection
1. Switch the ignition ON (engine off) and verify that the oil pressure warning
light is illuminated.
2. Start the engine and verify that the oil pressure warning light turns off.
If the oil pressure warning light is not illuminated or remains illuminated,
inspect the wiring harness ...
Rear Window Defroster/Outer Mirror Heater
Outline
Fogging is cleared from the rear window and outer mirror glass by heating
of the filament.
Structural view
System wiring diagram
Vehicles with full-auto air conditioner system
Vehicles with manual air conditioner system
Construction
Rear window defroster
...