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 > Power Steering System(for Hv Model): Assist Map Number Un-Writing (C1581)
DESCRIPTION This DTC will be stored if the power steering ECU (rack and pinion power steering gear assembly) determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1581 Assist Map Number ...
