| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000028QLP |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): Brake Warning Light (Yellow) Remains On; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 - ] | ||
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Brake Warning Light (Yellow) Remains On |
DESCRIPTION
This procedure is for troubleshooting when the brake warning light (yellow) remains on but no DTCs are output.
The skid control ECU (brake actuator assembly) controls the brake warning light (yellow) in the combination meter assembly via CAN communication.
PROCEDURE
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1. |
CHECK VEHICLE CONTROL HISTORY (ELECTRIC PARKING BRAKE SYSTEM) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Enter the following menus: Chassis / Brake/EPB / Utility / Vehicle Control History (RoB).
(d) Using the Techstream, check for Vehicle Control History.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): VEHICLE CONTROL HISTORY (RoB)](/t3Portal/stylegraphics/info.gif)
Chassis > Brake/EPB > Utility
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Tester Display |
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Vehicle Control History (RoB) |
HINT:
If vehicle control history is stored when the electric parking brake system is suspended, the brake warning light (yellow) illuminates.
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Result |
Proceed to |
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There is no vehicle control history for when the electric parking brake system was suspended. |
A |
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There is vehicle control history for when the electric parking brake system was suspended. |
B |
| B |
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ERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY NOTICE: After performing troubleshooting and repair regarding vehicle control history, clear the vehicle control history. |
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2. |
INSPECT COMBINATION METER ASSEMBLY (BRAKE WARNING LIGHT (YELLOW)) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(d) Perform the Active Test of the combination meter assembly using the Techstream.
Click here
Body Electrical > Combination Meter > Active Test
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Tester Display |
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ECB Warning |
(e) Check the combination meter assembly.
OK:
The brake warning light (yellow) turns on or off in accordance with Techstream operation.
| OK |
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| NG |
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