DESCRIPTION This DTC is stored when the skid control ECU (brake actuator assembly) receives an internal malfunction signal from the steering angle sensor.
PROCEDURE
(a) Replace the steering angle sensor. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Automatic Light Control Sensor: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (a) Disconnect the G23 automatic light control sensor connector. *a Front view of wire harness connector (to Automatic Light Control Sensor) (b) Measure the voltage and resistance according to the value(s) in the table below. ...