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System Diagram

  1. COMBINATION METER ASSEMBLY 
    Fig 1: Combination Meter Assembly System Diagram (1 Of 2)
    G05006112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Combination Meter Assembly System Diagram (2 Of 2)
    G05006113Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    GATEWAY: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Gateway ECU Combination meter Multiplex communication signal BEAN

    HINT:

    CAN signals and AVC-LAN signals are transmitted to or received from the combination meter assembly through the gateway ECU.

    CAN: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Distance Control ECU (*1) Combination meter
    • Laser cruise signal
    • Diagnosis signal (Cruise Control)
    		 CAN-BEAN
    Skid Control ECU Combination meter
    • Brake warning light signal
    • Parking brake switch signal
    • ABS warning light signal
    • VSC warning light signal (*2)
    • Request signal to turn on / blink SLIP (*2) indicator light
    • Diagnosis signal (ABS, VSC)
    		 CAN-BEAN
    ECM Combination meter
    • ECT indicator signal
    • Test mode signal
    • Starter signal
    • Diagnosis signal (ABS, VSC, Cruise control)
    • Shift position signal
    • Engine coolant temperature signal
    • Fuel injection volume signal (for FUEL gauge control)
    • Radar cruise signal
    		 CAN-BEAN

    BEAN: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Body ECU Combination meter
    • Rear door courtesy light switch signal
    • Passenger door courtesy light switch signal
    • Driver door courtesy light switch signal
    • Driver side seat belt buckle light switch signal
    • Diagnosis signal
    • Illumination signal
    • Request signal to turn on the headlight / taillight
    		 BEAN
    Front Controller Combination meter
    • Engine oil level signal
    • Engine oil pressure signal
    • Washer level sensor signal
    • Alternator L signal
    		 BEAN
    A/C Control ECU Combination meter Outside temperature signal BEAN
    Power Source Control ECU (*3) Combination meter The power source signal BEAN
    Certification ECU (*3) Combination meter
    • Single buzzer sounding signal
    • Single to inform if key is in the cabin
    • Key battery information signal
    • Single to inform that engine cannot be restarted
    • A signal to inform if key is on front seats.
    • Incorrect key signal
    • Shift position warning signal
    • Request signal to sound a buzzer
    • Door open indication signal
    		 BEAN
    Combination meter Power Source Control ECU (*3)
    A/C Control ECU
    Body ECU
    Front Controller
    Rain sensor
    Certification ECU (*3)    		 Vehicle speed signal BEAN
    Combination meter Power Source Control ECU (*3)
    Body ECU    		 Light control rheostat signal BEAN
    Combination meter A/C Control ECU
    Memory mirror ECU LH / RH    		 Vehicle specification signal BEAN
    Combination meter Certification ECU (*3)
    Body ECU
    Gateway ECU    		 ODO meter signal BEAN
    Combination meter Gateway ECU Vehicle warning signal BEAN

    AVC-LAN: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Multi-Display Combination meter Driver monitor operation signal AVC-LAN-BEAN
    Combination meter Multi-Display
    Navigation ECU (*4)    		 Driver monitor information signal (possible running distance / average vehicle speed / drive distance / average fuel consumption / travel time) AVC-LAN-BEAN

    Direct Line: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Turn Signal Flasher Combination meter Turn LH/RH signal Direct Line
    Headlight Auto Level ECU Combination meter Headlight level warning signal Direct Line
    Center Airbag Sensor Assembly Combination meter
    • Diagnosis code signal
    • Passenger seat occupant classification signal
    • Passenger seat buckle switch signal
    • Request signal to turn on airbag warning light
    • Request signal to blink airbag warning light
    		 Direct Line
    Transponder Key ECU ((5))
    Security ECU ((3))    		 Combination meter Security indicator light signal Direct Line
    Certification ECU ((3)) Combination meter
    • Single buzzer sounding signal
    • Single to inform if key is in the cabin
    • Key battery information signal
    • Single to inform that engine cannot be restarted
    • A signal to inform if key is on front seats.
    • Incorrect key signal
    • Shift position warning signal
    • Request signal to sound a buzzer
    • Door open indication signal
    		 Direct Line
    Combination meter Hazard Switch
    Seat Heater Switch
    Cigar Lighter
    A/T Shift Lever
    Audio Controller
    Navigation ECU
    Heater Control Panel    		 Illumination control signal Direct Line
    Accessory Meter Passenger seat belt warning signal Direct Line
    ECM
    Tire Pressure Warning ECU
    Navigation ECU ((4))
    Multi-Display
    Power Source Control ECU ((3))    		 Vehicle speed signal Direct Line
    Tire pressure warning ECU Combination meter
    • Tire pressure signal
    • Vehicle speed signal
    		 Direct Line
    Skid Control ECU Combination meter Vehicle speed signal Direct Line
    Light Control Rheostat Combination meter
    • Illumination signal
    • Tail cancel switch signal
    		 Direct Line
    Brake Fluid Level Warning Switch Combination meter Brake fluid level signal Direct Line
    Fuel Sender Gauge Assembly Combination meter Fuel level signal Direct Line
    ECM Combination meter
    • Engine speed signal
    • Engine coolant temperature signal
    		 Direct Line
    (1) with Dynamic Laser Cruise Control System. In addition, the distance control ECU communicates with the combination meter assembly via ECM.
    (2) with VSC
    (3) with Smart key System
    (4) with Navigation System
    (5) without Smart key System
  2. ACCESSORY METER ASSEMBLY 
    Fig 3: Communication Diagram For Accessory Meter Assembly
    G05006114Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    GATEWAY: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Gateway ECU Each ECU Multiplex communication signal AVC-LAN

    HINT:

    AVC-LAN signals are transmitted to or received from the combination meter assembly through the ECU.

    AVC-LAN: 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Navigation ECU (*4) Accessory Meter GPS signal AVC-LAN-BEAN
    Audio Controller Accessory Meter Audio display signal AVC-LAN-BEAN
    Front Controller (*3)
    A/C Control Amplifier (*4)    		 Accessory Meter Ambient temperature signal AVC-LAN-BEAN
    Combination Meter Assembly Accessory Meter Driver monitor signal AVC-LAN-BEAN

    Direct Line 

    COMMUNICATION SIGNAL AND LINE DESCRIPTION

    Sender Receiver Communication Signal Communication Line
    Body ECU Accessory Meter Air conditioning display, drive monitor display and warning display Direct Line
    Center Airbag Sensor Assembly Accessory Meter Passenger airbag warning signal Direct Line
    Combination Meter Accessory Meter
    • Passenger seat belt warning signal
    • Illumination signal
    		 Direct Line
    Body ECU Accessory Meter ACAN signal Direct Line

    *1: without Smart Key System

    *2: with Smart Key System

    *3: without Navigation System

    *4: with Navigation System

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