Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001H17F
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for HV Model): All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter

DESCRIPTION

Wireless Transmitter-linked Function

  • When a key switch is pushed: 1) the door control receiver receives the wireless door lock signal; 2) the door control receiver sends a signal to the main body ECU (multiplex network body ECU) through the certification ECU (smart key ECU assembly); 3) the main body ECU (multiplex network body ECU) sends the operation permission signal to the power window regulator motor assemblies; and 4) the power window regulator motor assemblies are activated.

Key-linked Function

  • When the driver door key cylinder (key linked switch) is turned and held: 1) the door lock motor receives the signal; 2) the main body ECU (multiplex network body ECU) sends the signal to the power window regulator motor assemblies; and 3) the power window regulator motor assemblies are activated.

CAUTION / NOTICE / HINT

NOTICE:

  • These functions are set through customize settings, as they are off by default.
  • The power window control system uses the LIN communication system and CAN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication systems are functioning properly.

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

  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

    Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

PROCEDURE

1.

CHECK BASIC FUNCTION (WIRELESS AND POWER DOOR LOCK CONTROL SYSTEM)

(a) Check that the wireless door lock / unlock function operates normally.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for HV Model): OPERATION CHECK

(b) Check that the key-linked lock/unlock function operates normally.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, HV Model): OPERATION CHECK

Result

Proceed to

Wireless door lock/unlock function and key-linked lock/unlock function operate normally

A

Wireless door lock/unlock function does not operate normally

B

Key-linked lock/unlock function does not operate normally

C
B

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table)

C

GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, HV Model): PROBLEM SYMPTOMS TABLE 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, HV Model): PROBLEM SYMPTOMS TABLE

A

2.

CHECK MANUAL UP / DOWN FUNCTION

(a) Check that the manual up and down functions using the multiplex network master switch assembly, power window regulator switch assembly and rear power window regulator switch assemblies can operate all of the power windows.

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

OK:

Manual up and down functions are normal.

NG

GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table)

OK

3.

CHECK REMOTE UP / DOWN FUNCTION

(a) Check that the remote up and down functions using the multiplex network master switch assembly can operate all of the power windows.

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

OK:

Remote up and down functions are normal.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

NG

GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table)