Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Diagnosis System

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here HINT: Use the table below to help determine the cause of ...

Terminals Of Ecu

TERMINALS OF ECU CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (a) Disconnect the N7 multiplex network master switch assembly connector. (b) Measure the voltage and resistance according to the value ...

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Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Lighting System (w/o Automatic Headlight Beam Level Control System): Operation Check
OPERATION CHECK AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK NOTICE: Make sure that the customize settings are set to default when performing the automatic light control system operation check. Click here (a) Turn the engine switch on (IG). (b) Turn the light control switch to the AUTO position. ...

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > How To Troubleshoot Ecu Controlled Systems: General Information
GENERAL INFORMATION A large number of ECU controlled systems are used in this vehicle. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU c ...