Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028DY5
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly via LIN communication system. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Smart Key System (for Start Function).*

    *: w/ Smart Key System

    for HV Model: Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

    for Gasoline Model: Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

PROCEDURE

1.

CHECK POWER WINDOW CONTROL SYSTEM

(a) Check the power window operation using the multiplex network master switch assembly.

OK:

Each power window operates normally.

OK

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

NG

2.

READ VALUE USING GTS (DOOR LOCK SWITCH STATUS, DOOR UNLOCK SWITCH STATUS)

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

Body Electrical > Master Switch > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Door Lock Switch Status

Multiplex network master switch assembly lock signal

OFF or ON

OFF: Lock side of multiplex network master switch assembly not pushed

ON: Lock side of multiplex network master switch assembly pushed

-

Door Unlock Switch Status

Multiplex network master switch assembly unlock signal

OFF or ON

OFF: Unlock side of multiplex network master switch assembly not pushed

ON: Unlock side of multiplex network master switch assembly pushed

-

Body Electrical > Master Switch > Data List

Tester Display

Door Lock Switch Status

Door Unlock Switch Status

OK:

On the GTS screen, ON or OFF is displayed for each item according to the table above.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY