Toyota Yaris: Power Window Control System / Driver Side Power Window does not Operate with Power Window Master Switch

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Driver Side Power Window does not Operate with Power Window Master Switch

DESCRIPTION

When the ignition switch is ON, the power window regulator motor assembly (for driver door) is operated by the multiplex network master switch assembly. The power window regulator motor assembly (for driver door) has motor, regulator and ECU functions.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.

    Click here

  • If the power window regulator motor assembly (for driver door) has been replaced with a new one, initialize the power window control system.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration.

    Click here

PROCEDURE

1.

READ VALUE USING GTS (MAIN BODY)

(a) Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Communication D-Door Motor

Connection status between power window regulator motor assembly (for driver door) and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Communication stopped

OK: Normal communication

-

Communication Master Switch

Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Communication stopped

OK: Normal communication

-

Body Electrical > Main Body > Data List

Tester Display

Communication D-Door Motor

Communication Master Switch

OK:

OK is displayed for each Data List item above.

NG

GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting)

OK

2.

READ VALUE USING GTS (D-DOOR MOTOR)

(a) Read the Data List according to the display on the GTS.

Body Electrical > D-Door Motor > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

D Door P/W Up SW

Driver door power window manual up switch signal

OFF or ON

OFF: Driver door power window manual up switch not being operated

ON: Driver door power window manual up switch being operated

-

D Door P/W Down SW

Driver door power window manual down switch signal

OFF or ON

OFF: Driver door power window manual down switch not being operated

ON: Driver door power window manual down switch being operated

-

Body Electrical > D-Door Motor > Data List

Tester Display

D Door P/W Up SW

D Door P/W Down SW

OK:

On the GTS screen, ON or OFF is displayed accordingly.

NG

GO TO STEP 4

OK

3.

PERFORM ACTIVE TEST USING GTS (D-DOOR MOTOR)

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

CAUTION:

Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate.

Body Electrical > D-Door Motor > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Power Window

Power window

OFF / DOWN / UP

-

Body Electrical > D-Door Motor > Active Test

Tester Display

Power Window

OK:

Driver door power window operates normally.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)

4.

INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

Click here

NG

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

OK

5.

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door))

(a) Disconnect the L7 power window regulator motor assembly (for driver door) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L13-20 (UP) - L7-10 (UP)

Always

Below 1 Ω

L13-20 (UP) or L7-10 (UP) - Body ground

Always

10 kΩ or higher

L13-15 (DOWN) - L7-7 (DOWN)

Always

Below 1 Ω

L13-15 (DOWN) or L7-7 (DOWN) - Body ground

Always

10 kΩ or higher

OK

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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    No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.

    Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.

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