Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

If the battery voltage is low, the window defogger system may not operate. When "Operation of Electrical Items Restricted." is not displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".

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HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Window Defogger System

Symptom

Suspected Area

Link

Rear window defogger system does not operate

Refer to the "Rear Window Defogger System does not Operate".

    Operation Check
    OPERATION CHECK CHECK WINDOW DEFOGGER SYSTEM (a) Turn the engine switch on (IG). (b) Check that the rear window defogger wire (back window glass) becomes warm by operating the rear window defogger swi ...

    Terminals Of Ecu
    TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY *A w/o Seat Heater System *B w/ Seat Heater System (a) Disconnect the J43 air conditioning amplifier assembly connector. (b) Mea ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual > Bluetooth Phone: Using a Bluetooth phone message
    Once a MAP-profile compatible Bluetooth phone is registered, you can check the E-mail/SMS/MMS and reply to a message using the following procedures: Checking messages 1. Go to message screen: "MENU" button → "Phone" → "Messages" 2. Select a message. Moving the controller to the left while o ...

    Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Power Door Lock Control System: Operation Check
    OPERATION CHECK CHECK POWER DOOR LOCK OPERATION NOTICE: The operation check below is based on the non-customized initial condition of the vehicle. (a) Check basic functions. (1) Check that all of the doors lock when the lock side of the door control switch is pressed. (2) Check that all of the doors ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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