Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Key-off Operation Function Operates even if Operating Conditions are not Satisfied

NOTICE:

• If the sliding roof ECU (sliding roof drive gear sub-assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear sub-assembly) must be initialized.

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• The sliding roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to How to Proceed with Troubleshooting.

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• Before replacing the main body ECU (multiplex network body ECU) refer to Registration.

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Position Initialization Incomplete (B2343)

DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) has not been initialized. DTC No. Detection Item DTC Detection Condition Trouble Area B2343 ...

Remote Control System does not Operate

DESCRIPTION The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or electrical key transmitter sub-assembly. Then, the main body ECU (multip ...

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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Panoramic View Monitor System: Back Camera Current Malfunction (C1621)
DESCRIPTION DTC C1621 is stored if the parking assist ECU determines that the input/output signal communication with the rear television camera assembly is abnormal. DTC No. Detection Item DTC Detection Condition Trouble Area C1621 Back Camera Current Malfunction Rear television cam ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Lighting (ext): Rear Turn Signal Light Bulb
ReplacementREPLACEMENT CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. REMOVE REAR LIGHT COVER Click here 2. DISCONNECT REAR COMBINATION LIGHT ASSEMBLY (a) Apply protective tape around the rear combi ...