Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Diagram

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Vehicle Exterior / Door / Hatch / Power Back Door System (w/ Outside Door Control Switch) / System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

Receiving ECU

Signal

Communication Method

Main body ECU (multiplex network body ECU)

Multiplex network door ECU
  • Power back door ON/OFF signal
  • Combination switch assembly signal
  • Power back door switch (integration control and panel assembly) signal

CAN

Multiplex network door ECU

Main body ECU (multiplex network body ECU)
  • Back door courtesy switch signal
  • Wireless door lock buzzer request signal

CAN

Combination meter assembly

Main body ECU (multiplex network body ECU)
  • Power back door ON/OFF signal
  • Vehicle speed signal

CAN

Certification ECU (smart key ECU assembly)

Main body ECU (multiplex network body ECU)

Back door opener switch assembly signal

CAN

Main body ECU (multiplex network body ECU)

Kick door control sensor*
  • Vehicle speed signal
  • Engine switch on (IG) signal
  • Engine switch on (ACC) signal

LIN
  • *: w/ Hands Free Power Back Door
    Parts Location
    PARTS LOCATION ILLUSTRATION *1 INTEGRATION CONTROL AND PANEL ASSEMBLY *2 POWER BACK DOOR SWITCH *3 COMBINATION METER ASSEMBLY *4 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *5 ...

    How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: The power back door system troubleshooting procedure is based on the premise that the smart access system (for Entry Function) is operating normally. Check the power b ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Knock Sensor: Inspection
    INSPECTION PROCEDURE 1. INSPECT KNOCK CONTROL SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 - 2 25°C (77°F) 120 to 280 kΩ If the result is not as specified, replace the k ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Intelligent Clearance Sonar System: ECU Malfunction (C1611)
    DESCRIPTION If the clearance warning ECU assembly detects an internal malfunction during self-diagnosis, DTC C1611 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1611 ECU Malfunction Sub-CPU abnormal signal Mirror check abnormal Clearance warning E ...

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

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

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