CAN COMMUNICATION SYSTEM


  1. FUNCTION

    CAN Connection Components
    Combination Meter Assembly Multiplex Tilt and Telescopic ECU
    Headup Display (Meter Mirror Sub-assembly)*1 Air Conditioning Amplifier Assembly
    Main Body ECU (Multiplex Network Body ECU) Certification ECU (Smart Key ECU Assembly)
    Position Control ECU Assembly RH Front Multiplex Network Door ECU RH
    No. 1 Headlight ECU Sub-assembly RH No. 1 Headlight ECU Sub-assembly LH
    Front Multiplex Network Door ECU LH Spoiler Control ECU Assembly*2
    Position Control ECU Assembly LH Central Gateway ECU (Network Gateway ECU)
    Skid Control ECU Assembly Tire Pressure Warning ECU and Receiver (Electrical Key and TPMS Receiver Assembly)*3
    Tire Pressure Warning ECU and Receiver (Tire Pressure Monitor Receiver Assembly)*4 Absorber Control ECU
    Airbag ECU Assembly Steering Sensor
    Yawrate Sensor Pedestrian Detection ECU Assembly
    FR Steering Control ECU*5 RR Steering Control ECU*5
    ECM Power Steering ECU
    Driving Support ECU Assembly*6 Parking Brake ECU Assembly
    Clearance Warning ECU Assembly Blind Spot Monitor Sensor RH*7
    Millimeter Wave Radar Sensor Assembly*6 Television Camera Assembly
    Forward Recognition Camera*6 Bus Buffer ECU*8
    Stereo Component Equalizer Assembly DCM (Telephone Transceiver Assembly)*9
    Radio Receiver Assembly Sub-battery Module Assembly
    Shift Control ECU Blind Spot Monitor Sensor LH*7
    DLC3 -

    *1: Models with headup display

    *2: Models with active rear wing system

    *3: Models with integrated type door control receiver

    *4: Models with separated type door control receiver

    *5: Models with Lexus dynamic handling system

    *6: Models with Lexus Safety System +

    *7: Models with blind spot monitor system

    *8: Models with bus buffer ECU

    *9: Models with DCM

  2. DIAGNOSIS


    1. If a malfunction occurs on a CAN communication bus, ECUs that are connected to the CAN communication bus store Diagnostic Trouble Codes (DTCs) in memory.

    2. The 5-digit DTCs can be read by connecting the Global TechStream (GTS) to the DLC3.

    3. For details, refer to the Repair Manual.