INSPECTION PROCEDURE 1. INSPECT BRAKE ACTUATOR ASSEMBLY (a) Inspect the solenoid circuit. (1) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. 
(2) Disconnect the brake actuator assembly connector. (3) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (4) Measure the resistance according to the value(s) in the table below. HINT:
Standard Resistance:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Gasoline Model): Driving Support ECU Receive Data Malfunction (C1A73)
DESCRIPTION If a communication error between the driving support ECU assembly and another ECU is detected, DTC C1A73 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A73 Driving Support ECU Receive Data Malfunction 2 seconds after the engine switch is turned on (IG), a commun ...
