DESCRIPTION The skid control ECU (brake actuator assembly) stores this DTC if malfunctions are found in a circuit inside the ECU by self diagnosis.
PROCEDURE
(a) Replace the skid control ECU (brake actuator assembly). Click here HINT: This DTC is output when the skid control ECU (brake actuator assembly) detects a malfunction in an internal circuit. (b) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Test Mode. (c) Perform system variant learning and acceleration sensor zero point calibration. Click here
(d) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Signal Check. (e) Perform the sensor check using the Test Mode (Signal Check) procedure. Click here
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Toyota Avalon Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): TRAC does not Operate
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 in VSC off mode, or TRAC and VSC are disabled, the multi-information display in the combination meter a ...