WIPER AND WASHER SYSTEM PROBLEM SYMPTOMS TABLE

Tip:
  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Table 1. Front Wiper and Washer

Symptom

Suspected Area

Link

Front wipers do not operate at all

Windshield wiper switch assembly

Harness or connector

-

Front wipers do not operate in AUTO

LIN communication system

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Rain sensor

Map light assembly

Windshield wiper motor assembly

Windshield wiper switch assembly

Harness or connector

-

Front wiper system does not operate

Windshield wiper motor assembly

Windshield wiper switch assembly

Harness or connector

-

Front washer system does not operate

Windshield washer motor and pump assembly

Windshield wiper switch assembly

Harness or connector

-

Front wipers do not operate when front washer switch is on

Windshield wiper motor assembly

Windshield wiper switch assembly

Harness or connector

-

When front wiper switch is off, wiper blades do not park or park in wrong position

Front wiper arm installation position

-

Windshield wiper motor assembly

Table 2. Rear Wiper and Washer

Symptom

Suspected Area

Link

Rear wiper and washer system does not operate

Windshield wiper switch assembly

Harness or connector

-

Rear wiper system does not operate

Proceed to "Rear Wiper does not Operate"

Rear washer system does not operate

Rear washer motor and pump assembly

Windshield wiper switch assembly

Harness or connector

-

Rear wiper arm does not return to its original position when wiper switch is turned off

Rear wiper motor assembly

Harness or connector

-

Table 3. Headlight Cleaner System

Symptom

Suspected Area

Link

Headlight cleaner system does not operate when headlight cleaner switch is operated

Proceed to "Headlight Cleaner Motor and Relay Circuit"

Proceed to "Headlight Cleaner Switch Circuit"

Headlight cleaner control relay

-

Main body ECU (Multiplex network body ECU)

-

Headlight cleaner system does not operate when headlight cleaner switch is operated*

Proceed to "Headlight Cleaner Motor and Relay Circuit"

Proceed to "Washer Signal Circuit"

Proceed to "Headlight Signal Circuit"

Headlight cleaner control relay

-

  • *: The headlight cleaner system operates when the windshield wiper switch (front washer switch) is first operated with the low beam headlights on after the engine switch is turned on (IG).

Table 4. Other

Symptom

Suspected Area

Link

Washer fluid level warning system does not operate

Proceed to "Washer Fluid Level Warning Switch Circuit"

Combination meter assembly