Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

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.
Front Power Seat Control System (w/ Memory)

Symptom

Suspected Area

Link

Front power seat does not operate with front power seat switch

Refer to the "Front Power Seat does not Operate with Front Power Seat Switch".

One or more power seat motors do not operate

Refer to the "One or more Power Seat Motors do not Operate".

Power seat position is not memorized

Refer to the "Power Seat Position is not Memorized".

Power seat does not return to memorized position

Refer to the "Power Seat does not Return to Memorized Position".

Wireless transmitter memory function does not operate

Refer to the "Wireless Transmitter Memory Function does not Operate".

Wireless-linked return function does not operate

Refer to the "Wireless-linked Return Function does not Operate".

Power seat power easy access system function does not operate

Refer to the "Power seat power easy access system function does not operate".

    Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure th ...

    Terminals Of Ecu
    TERMINALS OF ECU CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY LH (a) Disconnect the c5 and c6 position control ECU and switch assembly LH connectors. (b) Measure the voltage and resistance accordin ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Window Control System: Key-off Operation Function Operates even if Operating Conditions are not Satisfied
    DESCRIPTION When the front doors are closed, each power window regulator motor assembly can be operated for approximately 45 seconds after the engine switch is turned from on (IG) to off by receiving operation permission signals from the main body ECU (multiplex network body ECU). However, when appr ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Speed Signal Malfunction (B15C2)
    DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly and information from the navigation antenna, and then adjusts the vehicle position. The navigation ECU stores this DTC when the difference between the speed information that the navigation antenna asse ...

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

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

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