DESCRIPTION This DTC indicates an internal malfunction of the driving support ECU assembly.
CAUTION / NOTICE / HINT NOTICE: When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored. PROCEDURE
(a) Replace the driving support ECU assembly. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Safety Connect System(for Gasoline Model): Manual Button Malfunction (B15C5)
DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects an open or short circuit in the manual (SOS) switch. DTC No. Detection Item DTC Detection Condition Trouble Area B15C5 Manual Button Malfunction Open or short circuit in manual (SOS) switch is detected. DCM (Telematics Transce ...
