Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000271IE
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMC Made): Brake Warning Light does not Come ON; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

Brake Warning Light does not Come ON

DESCRIPTION

The skid control ECU (brake actuator assembly) controls the brake system warning light (red indicator) in the combination meter assembly via CAN communication.

PROCEDURE

1.

CHECK VEHICLE

(a) Check the combination meter assembly.

Result

Proceed to

except 12.3 Inch Display

A

for 12.3 Inch Display

B

B

GO TO STEP 3

A

2.

INSPECT COMBINATION METER ASSEMBLY

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(d) Perform the Active Test of the combination meter assembly using the GTS.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): DATA LIST / ACTIVE TEST

Body Electrical > Combination Meter > Active Test

Tester Display

Brake Warning

(e) Check the combination meter assembly.

OK:

The brake warning light / red (malfunction) turns on or off in accordance with GTS operation.

OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

INSPECT METER / GAUGE SYSTEM

3.

INSPECT COMBINATION METER ASSEMBLY

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(d) Perform the Active Test of the combination meter assembly using the GTS.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for 12.3 Inch Display): DATA LIST / ACTIVE TEST

Body Electrical > Combination Meter > Active Test

Tester Display

Multi Display All (White)

(e) Check the combination meter assembly.

OK:

The multi-information display turns on or off in accordance with GTS operation.

OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

INSPECT METER / GAUGE SYSTEM