DESCRIPTION The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication. The slip indicator light blinks during VSC and/or TRAC operation. If a malfunction is detected, the slip indicator light comes on to warn the driver. Click here WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the skid control ECU (brake actuator assembly), perform system variant learning and acceleration sensor zero point calibration. Click here PROCEDURE
(a) Check if CAN communication system DTCs are output. Click here
(a) Check if the skid control ECU (brake actuator assembly) connector is securely connected. OK: The connector is securely connected.
(a) Check the battery voltage. Standard Voltage:
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Data List. Chassis > ABS/VSC/TRAC/EPB > Data List
(d) Check the Techstream display condition of the slip indicator light.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): Open Circuit in Main Relay 1 (C1311,C1312)
DESCRIPTION The main relay supplies power to the switching solenoid and the linear solenoid. The main relay remains on for approximately 2 minutes after the power switch is turned off and the input of brake pedal operation signals stops, and supplies power to the system to keep it ready to operate. ...