Note
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
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 |
|---|---|---|
| Wipers do not operate at all | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Wipers do not operate in INT | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Wipers do not operate in LO or MIST | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Wipers do not operate in HI | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| When the wiper switch is in INT position, the wiper operation timing does not change | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Spiral with sensor cable sub-assembly | ||
| Skid control ECU assembly | ||
| Windshield wiper switch assembly | ||
| Harness or connector | - | |
| Washer does not operate | Washer fluid | - |
| Washer hose and/or washer nozzle sub-assembly | ||
| Windshield wiper switch assembly | ||
| Windshield washer motor and pump assembly | ||
| Harness or connector | - | |
| "Low Washer Fluid" is displayed on the multi-information display | Washer fluid | - |
| Level warning switch assembly | ||
| Combination meter assembly | ||
| Harness or connector | - | |
| Wipers do not operate when the washer switch is on | Windshield wiper switch assembly | |
| Harness or connector | - | |
| When the wiper switch is off, the wiper blades do not park or park in the wrong position | Windshield wiper motor assembly (wiper arm installation position) | |
| Windshield wiper motor assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Front wipers do not operate at all | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Wipers do not operate in LO or MIST | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Wipers do not operate in HI | Windshield wiper switch assembly | |
| Windshield wiper motor assembly | ||
| Harness or connector | - | |
| Wipers do not operate in AUTO | Windshield wiper switch assembly | |
| LIN communication system | ||
| Map light assembly | ||
| Rain sensor | ||
| Harness or connector | - | |
| When the AUTO wiper ON/OFF switch is ON, the rain sensor sensitivity and wiper operation timing could not be adjusted by the auto sensitivity adjustment | Windshield wiper switch assembly | |
| LIN communication system | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Spiral with sensor cable sub-assembly | ||
| Skid control ECU assembly | ||
| Harness or connector | - | |
| When the AUTO wiper ON/OFF switch is ON, auto wiper indicator does not illuminate | Windshield wiper switch assembly | |
| Main body ECU (multiplex network body ECU) | ||
| Cowl side junction block LH | ||
| Lighting system | ||
| Harness or connector | - | |
| Washer does not operate | Washer fluid | - |
| Washer hose and/or washer nozzle sub-assembly | ||
| Windshield wiper switch assembly | ||
| Windshield washer motor and pump assembly | ||
| Harness or connector | - | |
| "Low Washer Fluid" is displayed on the multi-information display | Washer fluid | - |
| Level warning switch assembly | ||
| Combination meter assembly | ||
| Harness or connector | - | |
| Wipers do not operate when the washer switch is on | Windshield wiper switch assembly | |
| Harness or connector | - | |
| When the wiper switch is off, the wiper blades do not park or park in the wrong position | Windshield wiper motor assembly (wiper arm installation position) | |
| Windshield wiper motor assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Headlight cleaner system does not operate when the headlight cleaner switch is operated | Headlight cleaner hose and/or headlight cleaner washer nozzle cover | - |
| Headlight cleaner control relay | ||
| Headlight cleaner motor and pump assembly | ||
| Headlight washer actuator sub-assembly LH and/or RH | ||
| Headlight ECU sub-assembly | ||
| Harness or connector | - | |
| Headlight cleaner system does not operate when the front washer switch is first operated | Windshield wiper switch assembly | |
| Headlight cleaner control relay | ||
| Harness or connector | - |