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 Repair Manual > Trip Switch: Components
    COMPONENTS ILLUSTRATION *1 COWL SIDE TRIM BOARD LH *2 FRONT DOOR SCUFF PLATE LH *3 HOOD LOCK CONTROL LEVER SUB-ASSEMBLY *4 INSTRUMENT CLUSTER FINISH PANEL ORNAMENT *5 INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY *6 INSTRUMENT PANEL GARNISH LH *7 LOWER INSTRUMENT F ...

    Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Power Tilt And Power Telescopic Steering Column System: Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Body Electrical / Tilt & Telescopic / Trouble Codes. Body Electrical > Tilt&Telescopic > Tr ...

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

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

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