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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 74 (Electronically Controlled Brake System (HEV) - Diagnostic Codes (6 Of 6), Symptom Tests & Circuit Tests) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> TRAC does not Operate [01/2019 - 09/2022] >> Description

TRAC does not Operate [01/2019 - 09/2022]: Description

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When ABS, TR(A)C or VSC is operating, the skid control ECU (brake booster with master cylinder assembly) blinks the slip indicator light to inform the driver that slippage occurred.

When in VSC off mode, or TR(A)C and VSC are disabled, the multi-information display in the combination meter assembly displays "Traction Control Turned Off" and the VSC OFF indicator light illuminates to inform the driver.

When a communication malfunction with the hybrid vehicle control ECU is detected, TR(A)C and VSC are disabled. Also when the system is malfunctioning, TR(A)C and VSC are disabled and the indicator lights of related systems illuminate.

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