DESCRIPTION The parking brake ECU (brake actuator assembly) receives the wheel speed signal of each wheel from the skid control ECU (brake booster with master cylinder assembly) via CAN communication. This DTC is stored when a malfunction occurs in the skid control ECU (brake booster with master cylinder assembly).
CAUTION / NOTICE / HINT NOTICE: The parking brake indicator light blinks (red) when the power switch is turned on (IG) after replacing the parking brake ECU (brake actuator assembly). Operate the electric parking brake switch (electric parking brake switch assembly) to turn off the parking brake indicator light (red). PROCEDURE
(a) Check for DTCs. Chassis > ABS/VSC/TRAC > Trouble Codes
(a) Clear the DTCs. Chassis > Electric Parking Brake > Clear DTCs(b) Turn the power switch off. (c) Check for DTCs. Chassis > Electric Parking Brake > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Open in Bus 4 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 22 (CA2H) and 7 (CA2L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Resistance between terminals 22 (CA2H) and 7 (CA2L) of the central gateway ...