Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028LTT
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH

DESCRIPTION

If the manual up and down functions operate normally but the auto up and down functions do not, the power window control system may be in fail-safe mode.

If power window initialization has not been performed, the auto up and down functions will not operate.

WIRING DIAGRAM

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: B232096; RL-Door P/W Motor Component Internal Failure

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: REGISTRATION

  • Check that power window system customize settings "RL Window Auto Up Function" and "RL Window Auto Down Function" are set to "Enable" before performing the following procedure.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: CUSTOMIZE PARAMETERS

  • After the catch protection function has operated, the auto up function will not operate the first time the power window auto up switch is operated. The auto up function will operate normally after the first power window switch operation.

HINT:

If the pulse sensor built into the power window regulator motor assembly LH (for rear LH door) is malfunctioning, the power window control system will enter fail-safe mode. The remote up and down and auto up and down functions cannot be operated during fail-safe mode. However, the power window can be closed by holding the rear power window regulator switch assembly (for LH door) at the auto up position, and opened manually by pushing down the rear power window regulator switch assembly (for LH door).

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

RL Door Power Window AUTO Switch

Rear LH door power window auto switch

OFF or ON

OFF: Auto up or auto down switch not being operated

ON: Auto up or auto down switch being operated

-

Body Electrical > Main Body > Data List

Tester Display

RL Door Power Window AUTO Switch

OK:

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

NG

GO TO STEP 4

OK

2.

PERFORM INITIALIZATION

(a) Initialize the power window regulator motor assembly LH (for rear LH door).

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: REGISTRATION

NEXT

3.

CHECK POWER WINDOW CONTROL SYSTEM (AUTO UP / DOWN FUNCTION)

(a) Check that the rear LH door power window moves when the auto up and down functions of the rear power window regulator switch assembly (for LH door) are operated.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: OPERATION CHECK

OK:

Rear LH door auto up and down functions are normal.

OK

END (PROBLEM DUE TO INITIALIZATION FAILURE)
NG

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH Door)

4.

INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door)

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; WINDOW / GLASS: REAR POWER WINDOW SWITCH: INSPECTION

NG

REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door)

OK

5.

CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door) - POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH Door))

(a) Disconnect the N2 power window regulator motor assembly LH (for rear LH door) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N3-8 (AUTO) - N2-4 (AUTO)

Always

Below 1 Ω

N3-8 (AUTO) or N2-4 (AUTO) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

6.

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH Door)

(a) Connect the N2 power window regulator motor assembly LH (for rear LH door) connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

N3-8 (AUTO) - Body ground

Ignition switch ON

11 to 14 V
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH Door)