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 InspectionRelay Inspection
Relay Type
Connector type
Part name
Type A
TNS relay
A/C relay
Headlight HI relay
Headlight LO relay
Headlight LO relay (LH)
Horn relay
ACC rel ...
ABS Wheel Speed Sensor And ABS Sensor Rotor
Purpose/Function
The ABS wheel-speed sensor and ABS sensor rotor detect the rotation condition
of each wheel and transmit this information to the DSC HU/CM.
The signal from the ABS wheel-speed sensor is the primary signal that the
DSC HU/CM uses when carrying out control.
...
Auto Dimming Mirror
Purpose
The automatic glare prevention rearview mirror prevents the driver from being
affected by light from vehicles at the rear.
Structural view
System wiring diagram
Function
The automatic glare prevention rearview mirror detects the level of the surrounding
li ...