Toyota Yaris: Wiper And Washer System / Washer Motor Circuit

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Vehicle Exterior / Wiper / Washer / Wiper And Washer System / Washer Motor Circuit

DESCRIPTION

When the windshield washer motor and pump assembly receives signals from the windshield wiper switch assembly, it operates to spray washer fluid from the washer nozzle sub-assemblies.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses of circuits related to this system before performing the following procedure.

HINT:

The wiper and washer system uses the CXPI communication system. First, confirm that there is no malfunction in the CXPI communication system.

PROCEDURE

1.

PERFORM ACTIVE TEST USING GTS (FRONT WASHER RELAY)

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Front Washer Relay

Function to operate the windshield washer motor and pump assembly (Front)

OFF or ON

-
Body Electrical > Main Body > Active Test

Tester Display

Front Washer Relay

OK:

Windshield washer motor and pump assembly operates normally.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

Click here

NG

REPLACE WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

OK

3.

CHECK HARNESS AND CONNECTOR (POWER SOURCE - WINDSHIELD WIPER RELAY ASSEMBLY)

(a) Disconnect the A50 windshield wiper relay assembly connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

A50-6 (IGWS) - Body ground

Ignition switch ON

11 to 14 V

*a

Front view of wire harness connector

(to Windshield Wiper Relay Assembly)
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A50-5 (EWS) - Body ground

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A50-1 (+WR) - A44-1 (B)

Always

Below 1 Ω

A50-7 (-WR) - A44-2 (SW)

Always

Below 1 Ω

A50-1 (+WR) or A44-1 (B) - Body ground

Always

10 kΩ or higher

A50-7 (-WR) or A44-2 (SW) - Body ground

Always

10 kΩ or higher
OK

REPLACE WINDSHIELD WIPER RELAY ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    Wiper and Washer Switch Circuit

    DESCRIPTION The condition of the windshield wiper switch assembly is detected and sent to the steering sensor in this circuit. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration...

    Wiper Ecu

    ..

    Other information:

    Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Door LIN Bus off (B232588)


    DESCRIPTION If the main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 8 seconds or more, DTC B232588 will be stored. DTC No. Detection Item DTC Detection Condition Trouble Area B232588 Door LIN Bus off The main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 8 seconds or more...

    Toyota Yaris XP210 (2020-2023) 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 REAR UPPER COIL SPRING INSULATOR (a) Install the rear upper coil spring insulator to the vehicle body...

    Categories

    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

    read more

     
    Copyright © 2023 www.toyaris4.com