Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Driver Side Power Window does not Operate with Power Window Master Switch

Toyota Corolla Cross (2022-2024) 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

Click here

CAUTION / NOTICE / HINT

NOTICE:

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

  • 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

  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
    • for HEV Model:

      Click here

    • for Gasoline Model:

      Click here

    • *1: w/ Smart Key System

PROCEDURE

1.

READ VALUE USING GTS

(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

OK

2.

READ VALUE USING GTS

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

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Normal Condition

Reference Value

Diagnostic Note

D Door Power Window UP Switch

Driver door power window manual up switch

OFF or ON

OFF: Manual up switch not being operated

ON: Manual up switch being operated

-

D Door Power Window DOWN Switch

Driver door power window manual down switch

OFF or ON

OFF: Manual down switch not being operated

ON: Manual down switch being operated

-

Body Electrical > Main Body > Data List

Tester Display

D Door Power Window UP Switch

D Door Power Window DOWN Switch

OK:

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

NG

GO TO STEP 4

OK

3.

PERFORM ACTIVE TEST USING GTS

(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

D Door Power Window UP

Driver door power window up activate

OFF/ON

-

D Door Power Window DOWN

Driver door power window down activate

OFF/ON

-

Body Electrical > Main Body > Active Test

Tester Display

D Door Power Window UP

Body Electrical > Main Body > Active Test

Tester Display

D Door Power Window DOWN

HINT:

Up and down movement does not occur if the arrow is not pressed and held.

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.

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

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

*a

Front view of wire harness connector

(to Power Window Regulator Motor Assembly (for Driver Door))

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

L2-10 (UP) - Body ground

Ignition switch ON

11 to 14 V

L2-7 (DOWN) - Body ground

Ignition switch ON

11 to 14 V

NG

GO TO STEP 6

OK

5.

INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)

Click here

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)

6.

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

(a) Disconnect the L7 multiplex network master switch assembly connector.

(b) Disconnect the L2 power window regulator motor assembly (for driver door) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L7-20 (UP) - L2-10 (UP)

Always

Below 1 Ω

L7-15 (DOWN) - L2-7 (DOWN)

Always

Below 1 Ω

L7-20 (UP) or L2-10 (UP) - Body ground

Always

10 kΩ or higher

L7-15 (DOWN) or L2-7 (DOWN) - Body ground

Always

10 kΩ or higher

OK

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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