Toyota Yaris: Wiper And Washer System / Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration.
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HINT:
- 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.
| Symptom | Suspected Area | Link |
|---|---|---|
| Front wipers do not operate at all | Proceed to "Wiper and Washer Switch Circuit" |
|
| Proceed to "Front Wiper Motor Circuit" |
| |
| Main body ECU (Multiplex network body ECU) |
| |
| Windshield wiper relay assembly |
| |
| Front wipers do not operate in AUTO | Check customize parameters (Auto wiper) |
|
| Rain sensor tape (Check for air bubbles) | - | |
| Proceed to "Wiper and Washer Switch Circuit" |
| |
| Rain sensor |
| |
| Front wipers do not operate in LO | Proceed to "Wiper and Washer Switch Circuit" |
|
| Proceed to "Front Wiper Motor Circuit" |
| |
| Windshield wiper relay assembly |
| |
| Front wipers do not operate in HI | Proceed to "Wiper and Washer Switch Circuit" |
|
| Proceed to "Front Wiper Motor Circuit" |
| |
| Windshield wiper relay assembly |
| |
| Front wipers do not operate in INT*1 | Proceed to "Wiper and Washer Switch Circuit" |
|
| Front wipers do not operate in MIST | Proceed to "Wiper and Washer Switch Circuit" |
|
| Windshield wiper relay assembly |
| |
| When the front wipers are operating in AUTO, the rain sensor sensitivity cannot be adjusted by the auto sensitivity adjustment switch (wiping interval does not change) | Proceed to "Wiper and Washer Switch Circuit" |
|
| When the front wipers are operating in AUTO, the wiper interval does not change according to changes in the vehicle speed | Rain sensor |
|
| Main body ECU (Multiplex network body ECU) |
| |
| When the front wipers are operating in INT, the front wiper intermittent operation interval cannot be adjusted by the auto sensitivity adjustment switch (wiping interval does not change)*1 | Proceed to "Wiper and Washer Switch Circuit" |
|
| When the front wipers are operating in INT, the front wiper intermittent operation interval does not change according to changes in the vehicle speed*1 | Main body ECU (Multiplex network body ECU) |
|
| Front wipers continuously operate in AUTO | Proceed to "Wiper and Washer Switch Circuit" |
|
| Front wipers continuously operate in LO | Proceed to "Wiper and Washer Switch Circuit" |
|
| Front wipers continuously operate in HI | Proceed to "Wiper and Washer Switch Circuit" |
|
| Front wipers continuously operate in INT*1 | Proceed to "Wiper and Washer Switch Circuit" |
|
| When the front wipers are operating in AUTO, they do not stop operating when the driver door or front passenger door is opened | Proceed to "Front Door Courtesy Switch Circuit" |
|
| Main body ECU (Multiplex network body ECU) |
| |
| When the customize setting "Auto Wiper" is changed, the operation of the wiper system does not change | Rain sensor |
|
| When the front wiper switch is turned off, the front wipers stop in the wrong position | Proceed to "Front Wiper Motor Circuit" |
|
| Check the automatic stop (park) position |
| |
| Windshield wiper relay assembly |
|
- *1: When the customize setting "Auto Wiper" is set to "Not Avl".
| Symptom | Suspected Area | Link |
|---|---|---|
| Windshield washer motor and pump assembly does not operate | Proceed to "Wiper and Washer Switch Circuit" |
|
| Proceed to "Washer Motor Circuit" |
| |
| Windshield wiper relay assembly |
| |
| Front washers do not operate | Proceed to "Wiper and Washer Switch Circuit" |
|
| Windshield wiper relay assembly |
| |
| Washer fluid does not flow (Windshield washer motor and pump assembly is normal) | Washer fluid | - |
| Washer hose and nozzle | - |
Utility
UTILITY WIPER SPECIFICATION SWITCH HINT: Although this item is displayed on the GTS, it is not applicable to this vehicle. (a) According to the display on the GTS, select Wiper Specification Switch...
Terminals Of Ecu
TERMINALS OF ECU CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND POWER DISTRIBUTION BOX ASSEMBLY
*1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU) (a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Installation
INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL CURTAIN SHIELD AIRBAG ASSEMBLY NOTICE: When installing a curtain shield airbag assembly, have assistants hold it to prevent it from bending...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Removal
REMOVAL PROCEDURE 1. REMOVE CENTER STOP LIGHT COVER (a) Disengage the claws to remove the center stop light cover. (b) Disengage the claws and disconnect the connector. 2. REMOVE REAR SPOILER HOLE COVER (a) Remove the 4 rear spoiler hole covers...
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Liftgate/Trunk Lid
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
