Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000260SM |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 -
] |
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): ABS Operates Before Necessary When Braking; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 - ] |
ABS Operates Before Necessary When Braking
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DESCRIPTION
Troubleshooting for when ABS operates too soon due to a noisy signal from the speed sensor, a difference in output, etc.
PROCEDURE
1.
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PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK)
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(a) Using the GTS, perform a Dealer Mode (Signal Check) inspection sensor check and check that speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.
Click here
Chassis > Brake/EPB > Utility
Tester Display
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Signal Check
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OK:
Speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.
Result
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Proceed to
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OK (for Front)
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A
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OK (for Rear)
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B
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NG
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C
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NOTICE:
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When cleaning the front speed sensor and rear speed sensor, make sure to clean the installation hole before installation.
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Do not use parts cleaner when cleaning the front speed sensor rotor and rear speed sensor rotor.
A |
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CLEAN FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR
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B |
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CLEAN REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR
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C |
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INSPECT AND REPAIR MALFUNCTIONING SPEED SENSOR CIRCUIT
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