WIPER AND WASHER SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Front wipers do not operate at all | Windshield wiper switch assembly | |
| Harness or connector | - | |
| Front wipers do not operate in AUTO | LIN communication system | |
| 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 |
| Symptom | Suspected Area | See page |
|---|---|---|
| Wiper and washer systems do not operate at all | 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 the front wiper switch is off, wiper blades do not park or park in wrong position | Front wiper arm installation position | - |
| Windshield wiper motor assembly |
| Symptom | Suspected Area | See page |
|---|---|---|
| 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 | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| 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 "Headlight Signal Circuit" | ||
| Proceed to "Washer Signal Circuit" | ||
| Headlight cleaner control relay | - | |
| Main body ECU (Multiplex network body ECU) | - |
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*: The headlight cleaner system operates when the front washer switch is first operated with the low beam headlights on after the ignition switch is turned to ON.