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 | Link |
|---|---|---|
| Front wipers do not operate at all | ECU-IG1 NO. 4 fuse | - |
| Windshield wiper switch assembly | ||
| Windshield wiper motor assembly | ||
| Windshield wiper relay assembly | ||
| No. 1 integration relay | ||
| Harness or connector | - | |
| Front wipers do not operate in AUTO | Rain sensor tape | - |
| Rain sensor | ||
| Windshield wiper switch assembly | ||
| Windshield wiper relay assembly | ||
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| When the front wiper switch is in AUTO, the rain sensor sensitivity cannot be adjusted by the windshield wiper switch adjusting ring | Windshield glass (Rain sensor sensing portion) is dirty | - |
| Windshield wiper switch assembly | ||
| Windshield wiper relay assembly | ||
| Harness or connector | - | |
| Front wipers do not operate in MIST | Windshield wiper switch assembly | |
| Harness or connector | - | |
| Front wipers do not operate in LO | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Windshield wiper relay assembly | ||
| Harness or connector | - | |
| Front wipers do not operate in HI | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Windshield wiper relay assembly | ||
| Harness or connector | - | |
| Front washer motor does not operate | WASHER fuse | - |
| Windshield washer motor and pump assembly | ||
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| Washer fluid does not flow | Washer fluid | - |
| Washer hose and nozzle | - | |
| Front wipers do not operate when the front washer switch is on | Windshield wiper motor assembly | |
| Windshield wiper relay assembly | ||
| Harness or connector | - | |
| When the front wiper switch is off, the wiper blades do not stop (park) or stop (park) in the wrong position | Front wiper arm installation position | |
| Windshield wiper switch assembly | ||
| Windshield wiper motor assembly | ||
| Windshield wiper relay assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Front wipers do not operate at all | WIPER fuse | - |
| Windshield wiper switch assembly | ||
| Windshield wiper motor assembly | ||
| No. 1 Integration relay | ||
| Harness or connector | - | |
| Front wipers do not operate in INT | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Front wipers do not operate in MIST | Windshield wiper switch assembly | |
| Harness or connector | - | |
| Front wipers do not operate in LO | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Front wipers do not operate in HI | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Front washer motor does not operate | WASHER fuse | - |
| Windshield washer motor and pump assembly | ||
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| Washer fluid does not flow | Washer fluid | - |
| Washer hose and nozzle | - | |
| Front wipers do not operate when the front washer switch is on | Windshield wiper motor assembly | |
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| When the front wiper switch is off, the wiper blades do not stop (park) or stop (park) in the wrong position | Front wiper arm installation position | |
| Windshield wiper switch assembly | ||
| Windshield wiper motor assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Rear wiper does not operate at all | WIPER RR fuse | - |
| Windshield wiper switch assembly | ||
| Rear wiper motor assembly | ||
| Harness or connector | - | |
| Rear wiper does not operate in INT | Windshield wiper switch assembly | |
| Rear wiper motor assembly | ||
| Harness or connector | - | |
| Rear wiper does not operate in ON | Windshield wiper switch assembly | |
| Rear wiper motor assembly | ||
| Harness or connector | - | |
| Rear washer motor does not operate | WASHER fuse | - |
| Windshield washer motor and pump assembly | ||
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| Washer fluid does not flow | Washer fluid | - |
| Washer hose and nozzle | - | |
| When the rear wiper switch is off, the wiper blade does not stop (park) or stops (parks) in the wrong position | Rear wiper arm installation position | |
| Windshield wiper switch assembly | ||
| Rear wiper motor assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Headlight cleaner system does not operate | Lighting system*1 | |
| Check headlight cleaner washer nozzle cover | - | |
| Check headlight cleaner hose | - | |
| Proceed to "Headlight Cleaner Motor and Relay Circuit" |
| Symptom | Suspected Area | Link |
|---|---|---|
| Washer fluid level warning message on the multi-information display does not operate | Level warning switch assembly | |
| Meter and gauge system | ||
| Harness or connector | - |
*1: for LED Headlight