SYSTEM DIAGRAM
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Extension Module Malfunction 2 (B1556)
DESCRIPTION This DTC is stored when a malfunction occurs in the Navigation ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B1556 Extension Module Malfunction 2 When any of the following conditions is met:
Internal power supply malfunction
Internal hard drive ma ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Main Body Ecu: Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
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After the main body ECU (multiplex network body ECU) has been replaced, the automatic light control system will not operate until the engine is sta ...