Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000261L1
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for TMC Made): All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the door control switch assembly. 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:

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 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): REGISTRATION

PROCEDURE

1.

READ VALUE USING GTS (Manual Door Lock Switch (D/P Door), Manual Door Unlock Switch (D/P Door))

(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

Manual Door Lock Switch (D/P Door)

Door control switch assembly lock signal

OFF or ON

OFF: Lock switch of door control switch assembly not pushed

ON: Lock switch of door control switch assembly pushed

-

Manual Door Unlock Switch (D/P Door)

Door control switch assembly unlock signal

OFF or ON

OFF: Unlock switch of door control switch assembly not pushed

ON: Unlock switch of door control switch assembly pushed

-

Body Electrical > Main Body > Data List

Tester Display

Manual Door Lock Switch (D/P Door)

Manual Door Unlock Switch (D/P Door)

OK:

The GTS indicates ON or OFF according to the switch operation shown in the table.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

2.

INSPECT DOOR CONTROL SWITCH ASSEMBLY

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 -        ]; DOOR LOCK: DOOR CONTROL SWITCH: INSPECTION

NG

REPLACE DOOR CONTROL SWITCH ASSEMBLY

OK

3.

CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

(a) Disconnect the K11 door control switch assembly connector.

(b) Disconnect the I86 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K11-4 (L) - I86-6 (L1)

Always

Below 1 Ω

K11-2 (UL) - I86-7 (UL1)

Always

Below 1 Ω

K11-5 (E) - Body ground

Always

Below 1 Ω

K11-4 (L) - Body ground

Always

10 kΩ or higher

I86-6 (L1) - Body ground

Always

10 kΩ or higher

K11-2 (UL) - Body ground

Always

10 kΩ or higher

I86-7 (UL1) - Body ground

Always

10 kΩ or higher

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR