Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): VSC does not Operate or VSC does not Operate Correctly
DESCRIPTION When ABS, TRAC 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 a communication malfunction with the hybrid vehicle control ECU is detected, TRAC and VSC are disabled. ...