Lexus RX (RX 350L, RX450h) 2016-2026 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.
Sliding Roof System

Symptom

Suspected Area

Link

Remote control system does not operate

Sliding roof ECU (Sliding roof drive gear sub-assembly)

Power window control system

-

Main body ECU (Multiplex network body ECU)

-

Key-off operation function operates even if operating conditions are not satisfied

Sliding roof ECU (Sliding roof drive gear sub-assembly)

Main body ECU (Multiplex network body ECU)

-

Sliding roof does not move by operating sliding roof control switch

Sliding roof ECU (Sliding roof drive gear sub-assembly)

Wire harness or connector

-

Sliding roof switch (Map light assembly)

-

    Initialization
    INITIALIZATION INITIALIZE SLIDING ROOF SYSTEM NOTICE: When the sliding roof glass sub-assembly or sliding roof drive cable sub-assembly is adjusted or removed/installed, or the sliding roof drive g ...

    Terminals Of Ecu
    TERMINALS OF ECU CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (a) Disconnect the U2 sliding roof ECU (sliding roof drive gear sub-assembly) connector. (b) Measure the resistance and ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System (w/ Automatic Headlight Beam Level Control System): Height Sensor Initialization Incomplete (B2450)
    DESCRIPTION The No. 1 headlight ECU sub-assembly LH stores this DTC if initialization has not been performed after it was replaced. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from B2450 Height Sensor Initialization Incomplete The engine switch is on ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Solar Sensor: Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during solar sensor removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Rep ...

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

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

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