Tech Tips
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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Front wiper does not operate at all | Wiper ECU power source circuit | |
| Front wiper motor circuit | ||
| Wiper and washer switch circuit | ||
| Windshield wiper relay assembly | ||
| Front wiper does not operate in AUTO | Rain sensor tape* | - |
| Rain sensor circuit | ||
| Speed signal circuit | ||
| Front wiper motor circuit | ||
| Wiper and washer switch circuit | ||
| Windshield wiper relay assembly | ||
| Front wiper does not operate in LO | Front wiper motor circuit | |
| Wiper and washer switch circuit | ||
| Windshield wiper relay assembly | ||
| Front wiper does not operate in HI | Front wiper motor circuit | |
| Wiper and washer switch circuit | ||
| Windshield wiper relay assembly | ||
| Front washer motor does not operate | Washer motor circuit | |
| Wiper and washer switch circuit | ||
| Windshield wiper relay assembly | ||
| Washer fluid does not flow | Washer hose and nozzle | |
| Washer fluid | - | |
| Front wiper does not operate when front washer switch is on | Front wiper motor circuit | |
| Wiper and washer switch circuit | ||
| Windshield wiper relay assembly | ||
| When the front wiper switch is off, the wiper blade does not park or parks in the wrong position | Front wiper arm installation position | |
| Windshield wiper motor assembly |
Tech Tips
*: Before inspecting the rain sensor, first check if the rain sensor tape is correctly installed.
| Symptom | Suspected Area | See page |
|---|---|---|
| Rear wiper does not operate | WIPER RR fuse | - |
| Rear wiper motor assembly | ||
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| Rear washer motor does not operate | WASHER fuse | - |
| Rear washer motor and pump assembly | ||
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| Washer fluid does not flow | Washer hose and nozzle | |
| Washer fluid | - | |
| When the rear wiper switch is off, the wiper blade does not park or parks in the wrong position | Rear wiper arm installation position | |
| Rear wiper motor and pump assembly |