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 InspectionIon Sensor
Purpose/Function
Detects ion generation in the combustion chamber for detecting pre-ignition.
Detects ions which occur due to fuel combustion as current by applying bias
voltage to the spark plug, which is amplified in the ignition coil internal
circuit and input to the PCM.
...
Instrumentation/Driver Info.
Outline
An LCD has been adopted to the instrument cluster which displays the ambient
temperature, trip computer, and odometer/tripmeter.
A blind spot monitoring (BSM) system has been adopted which notifies the
driver of vehicles approaching from behind on the left or right adjac ...
Rear Wiper Motor Inspection
1. Disconnect the negative battery cable..
2. Open the liftgate.
3. Remove the following parts:
a. Rear wiper arm and blade.
b. Liftgate upper trim.
c. Liftgate side trim.
d. Liftgate recess.
e. Liftgate lower trim.
4. Remove the rear wiper motor connector.
Rear Wiper Motor Ope ...