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 InspectionInterior Equipment (View B)
1 Audio control switches
2 SRS air bags
3 Cruise control switches
4 Navigation system (if equipped)
5 Audio system
6 Hazard warning flasher switch
7 Climate control system
8 Glove compartment
9 Rear window defroster switch
10 Accessory socket
11 MT shift lever
12 AT shift lever ...
DSC Control
Outline
While a vehicle normally turns safely in response to steering operation,
there are instances when the limits of tire lateral grip is surpassed due to
road surface conditions or vehicle speed, and the influence of evasive steering
to avoid an accident or similar situations.
...
Car Navigation System
Outline
The car-navigation system displays point-of-origin and road guidance maps
via the audio unit display and provides guidance and information to the desired
point of destination.
NOTE:
For the car-navigation system operation, refer to the owner's manual.
...