Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001H17D
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

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.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): INITIALIZATION

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): INITIALIZATION

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

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): 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 (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).

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): FAIL-SAFE CHART

PROCEDURE

1.

READ VALUE USING TECHSTREAM (RL-DOOR MOTOR)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / RL-Door Motor / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > RL-Door Motor > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

RL Door P/W Auto SW

Rear LH door power window auto switch signal

OFF or ON

OFF: Rear LH door power window auto up or auto down switch not being operated

ON: Rear LH door power window auto up or auto down switch being operated

-

Body Electrical > RL-Door Motor > Data List

Tester Display

RL Door P/W Auto SW

OK:

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

NG

GO TO STEP 4

OK

2.

PERFORM INITIALIZATION (for Rear LH Door)

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

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): INITIALIZATION

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 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): 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 (for Rear LH Door) 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; WINDOW / GLASS: POWER WINDOW REGULATOR MOTOR (for Rear Door): REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW REGULATOR MOTOR (for Rear Door): REMOVAL

4.

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

(a) Remove the 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: REMOVAL

(b) Inspect the 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 (for Rear LH Door))

(a) Disconnect the N2 power window regulator motor assembly (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
OK

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; WINDOW / GLASS: POWER WINDOW REGULATOR MOTOR (for Rear Door): REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; WINDOW / GLASS: POWER WINDOW REGULATOR MOTOR (for Rear Door): REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR