METER / GAUGE SYSTEM SYSTEM DESCRIPTION


  1. OUTLINE OF COMBINATION METER ASSEMBLY

    A003YCUE02
    Text in Illustration
    *1 Shift Indicator *2 Fuel Receiver Gauge
    *3 Multi-information Display *4 ODO/TRIP Change Switch Knob
    *5 Speedometer *6 Hybrid System Indicator or Tachometer

  2. INPUT AND OUTPUT SIGNALS OF COMBINATION METER ASSEMBLY


    1. Meter or Gauge

      Meter or Gauge Communication Signal Receiver Communication Line Sender
      Speedometer Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Tachometer HV engine speed Combination meter assembly CAN Power management control ECU
      Shift D selection
      Eco mode indicator
      Shift gear selection
      Sport mode off
      Fuel receiver gauge Fuel level Combination meter assembly Direct Line Fuel sender gauge assembly
      Fuel level Multi-media module receiver assembly (w/ Multi-display) CAN Combination meter assembly
      Fuel level warning
      ODO, TRIP A, TRIP B meter ODO/TRIP change Combination meter assembly - ODO/TRIP change switch knob
      Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Meter illumination Illumination level Combination meter assembly Direct Line Light control rheostat
      Tail cancel
      Auto dimmer CAN Main body ECU (Multiplex network body ECU)
      Tail cancel Main body ECU (Multiplex network body ECU) CAN Combination meter assembly
      HV system indicator Eco zone indicator level Combination meter assembly CAN Power management control ECU
      Shift D selection
      Eco mode indicator
      Shift gear selection
      Sport mode

    2. Warning or Indicator

      Warning or Indicator Communication Signal Receiver Communication Line Sender
      Master warning Each system warning Combination meter assembly CAN, Direct Line Related ECUs
      Open door warning Each door courtesy switch Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Hood courtesy switch Combination meter assembly
      Luggage door courtesy switch Combination meter assembly
      Brake warning Brake warning Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Parking brake switch Main body ECU (Multiplex network body ECU)
      Seat belt warning Driver side seat belt buckle switch Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Front passenger side seat belt buckle switch Combination meter assembly Direct Line Front seat inner belt assembly RH (for LHD) or LH (for RHD)
      Front passenger seat condition Combination meter assembly Direct Line Separate type front seat cushion pad
      Parking brake switch Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      SRS warning (w/ Airbag Cut-off Switch) SRS warning Combination meter assembly CAN Airbag ECU assembly
      Water temperature warning Water temperature Combination meter assembly CAN ECM
      Engine coolant temperature sensor existence Air conditioning amplifier assembly
      Water temperature Direct Line Engine coolant temperature sensor
      Oil pressure warning Oil pressure Combination meter assembly Direct Line Oil pressure switch
      Oil pressure warning lighting prohibition CAN Power management control ECU
      Charge warning Charge warning Combination meter assembly CAN Power management control ECU
      EPS warning EPS warning Combination meter assembly CAN Power steering ECU assembly
      MIL (Check engine warning) MIL (Check engine warning) Combination meter assembly Direct Line ECM
      PCS warning (w/ Pre-crash Safety System) PCS system warning Combination meter assembly CAN Seat belt control ECU
      Dirty of radar sensor
      PCS not available now
      Bulb check
      PCS warning
      Pre-crash seat belt communication invalidation (w/ Pre-crash Brake)
      Pre-crash seat belt off switch (w/ Pre-crash Brake)
      Slip indicator Slip indicator Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      ABS warning ABS warning Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Electrically controlled brake warning Brake warning (Yellow) Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Fuel level warning Fuel level Combination meter assembly Direct Line Fuel sender gauge assembly
      Rear fog indicator (w/ Rear Fog Light) Rear fog indicator Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Headlight leveling indicator (w/ Automatic Type Headlight Beam Level Control) Headlight leveling indicator Combination meter assembly Direct Line Headlight leveling ECU assembly
      High beam indicator High beam indicator Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Ready indicator Ready indicator Combination meter assembly CAN Power management control ECU
      STA signal
      Tail indicator Tail indicator Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Front fog indicator (w/ Front Fog Light) Front fog light Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Turn indicator Turn indicator Combination meter assembly Direct Line Turn signal flasher assembly
      Eco mode indicator Eco mode indicator Combination meter assembly CAN Power management control ECU
      Sport mode indicator Sport mode indicator Combination meter assembly CAN Power management control ECU
      EV indicator light Eco mode indicator Combination meter assembly CAN Power management control ECU
      Engine mode
      Vehicle speed Combination meter assembly Brake booster with master cylinder assembly (skid control ECU)
      EV indicator customization signal Combination meter assembly Direct Line DISP switch (Steering pad switch assembly)
      Cruise main indicator (w/ Cruise Control System) Cruise main indicator Combination meter assembly CAN Power management control ECU
      Cruise main (Constant speed control mode) indicator (w/ Dynamic Radar Cruise Control System) Cruise main (Constant speed control mode) indicator Combination meter assembly CAN Driving support ECU assembly
      Cruise main (Vehicle-to-vehicle distance control mode) indicator (w/ Dynamic Radar Cruise Control System) Cruise main (Vehicle-to-vehicle distance control mode) indicator Combination meter assembly CAN Driving support ECU assembly
      Clearance sonar indicator (w/ Lexus Parking Assist-sensor System) Clearance sonar indicator Combination meter assembly CAN Clearance warning ECU assembly
      EV mode indicator EV mode indicator Combination meter assembly CAN Power management control ECU
      Shift selection indicator Shift selection Combination meter assembly CAN Power management control ECU

    3. Cruise Information Display

      Cruise Information Display Communication Signal Receiver Communication Line Sender
      Cruise information display DISP switch (steering pad switch assembly) operation Combination meter assembly Direct line DISP switch (Steering pad switch assembly)
      Energy flow display Energy flow Combination meter assembly CAN Power management control ECU
      Current fuel consumption display Fuel consumption Combination meter assembly CAN ECM
      Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Direct line
      Average fuel consumption display Fuel consumption Combination meter assembly CAN ECM
      Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Direct line
      Reset Combination meter assembly Direct Line DISP switch (Steering pad switch assembly)
      Average fuel consumption after refueling display Fuel consumption Combination meter assembly CAN ECM
      HV engine speed Combination meter assembly CAN Power management control ECU
      Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Direct line
      Reset Combination meter assembly CAN DISP switch (Steering pad switch assembly)
      Driving distance display Fuel consumption Combination meter assembly CAN ECM
      Fuel level Combination meter assembly Direct Line Fuel sender gauge assembly
      Driving time display Driving time - - -
      Average speed display Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Reset Combination meter assembly Direct Line DISP switch (Steering pad switch assembly)
      Outside temperature Outside temperature Combination meter assembly CAN Air conditioning amplifier assembly
      Rear seat belt warning display (w/ Rear Seat Belt Warning) Rear seat belt buckle switch RH Combination meter assembly Direct Line Rear seat inner belt assembly RH
      Rear seat belt buckle switch center Rear seat inner with center belt assembly LH
      Rear seat belt buckle switch LH
      Rear door RH courtesy switch CAN Main body ECU (Multiplex network body ECU)
      Rear door LH courtesy switch CAN
      Customized parameter display Customized parameter Combination meter assembly CAN Related ECUs

    4. Multi-information Display

      Multi-information Display Message Communication Signal Receiver Communication Line Sender
      Multi-information display DISP switch (steering pad switch assembly) operation Combination meter assembly Direct Line DISP switch (Steering pad switch assembly)
      Maintenance mode display Maintenance mode display Combination meter assembly CAN Power management control ECU
      Certification mode display Certification mode display Combination meter assembly CAN Power management control ECU
      Adjusting front radar beam display (w/ Dynamic Radar Cruise Control System) Adjusting front radar beam display Combination meter assembly CAN Driving support ECU assembly
      Checking cruise control C/D display (w/ Dynamic Radar Cruise Control System) Checking cruise control C/D display Combination meter assembly CAN Driving support ECU assembly
      Checking cruise control brake display Checking cruise control brake display Combination meter assembly CAN Driving support ECU assembly
      Brake! display (w/ Dynamic Radar Cruise Control System) Brake! display Combination meter assembly CAN Driving support ECU assembly
      Open door warning Open door warning Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Clearance sonar display (w/ Lexus Parking Assist-sensor System) Clearance sonar display Combination meter assembly CAN Clearance warning ECU assembly
      Check sonar display (w/ Lexus Parking Assist-sensor System) Check sonar display Combination meter assembly CAN Clearance warning ECU assembly
      Clean sonar display (w/ Lexus Parking Assist-sensor System) Clean sonar display Combination meter assembly CAN Clearance warning ECU assembly
      Auto power off to conserve battery display Auto power off to conserve battery Combination meter assembly CAN Power management control ECU
      Shift to P position and push power switch to turn power off display Shift to P position and push power switch to turn power off display Combination meter assembly CAN Power management control ECU
      Shift to P position display Shift to P position display Combination meter assembly CAN Power management control ECU
      Rear seat belt reminder display (w/ Rear Seat Belt Warning) Rear seat belt buckle switch RH Combination meter assembly Direct Line Rear seat inner belt assembly RH
      Rear seat belt buckle switch center Rear seat inner with center belt assembly LH
      Rear seat belt buckle switch LH
      Shift to P position when parked display Shift to P position when parked display Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      N position display N position display Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Traction battery preservation mode restart after shifting the P position display Traction battery preservation mode restart after shifting the P position Combination meter assembly CAN Power management control ECU
      Low traction battery charge when not in N position display Low traction battery charge when not in N position display Combination meter assembly CAN Power management control ECU
      P lock malfunction when parking, park in flat place and apply parking brake securely display P lock malfunction when parking, park in flat place and apply parking brake securely display Combination meter assembly CAN Power management control ECU
      Check hybrid system display Check hybrid system display Combination meter assembly CAN Power management control ECU
      Release parking brake display Release parking brake display Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Key not detected display Key not detected display Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Clean radar sensor display (w/ Pre-crash Safety System) Clean radar sensor display Combination meter assembly CAN Seat belt control ECU
      Cruise control not available display (w/ Dynamic Radar Cruise Control System) Cruise control not available display Combination meter assembly CAN Driving support ECU assembly
      Check cruise control system display (w/ Dynamic Radar Cruise Control System) Check cruise control system display Combination meter assembly CAN Driving support ECU assembly
      Check PCS system display (w/ Pre-crash Safety System) Check PCS system display Combination meter assembly CAN Seat belt control ECU
      Check headlight system display (w/ Automatic Type Headlight Beam Level Control) Check headlight system display Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Turn power off display Turn power off display Combination meter assembly CAN Power management control ECU
      Key detected in vehicle display Key detected in vehicle display Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Turn lights off display (w/ Light Reminder) Turn lights off display Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Moon roof opened display (w/ Sliding Roof) Moon roof opened display Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Depress brake pedal, touch power switch with key display Depress brake pedal, touch power switch with key Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Depress brake and push power switch to start display Depress brake and push power switch to start Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Shift to P position to start display Shift to P position to start Combination meter assembly CAN Power management control ECU
      Key battery low display Shift to P position to start Combination meter assembly CAN Power management control ECU
      Hybrid system overheat display Hybrid system overheat display Combination meter assembly CAN Power management control ECU
      Low washer fluid display Low washer fluid display Combination meter assembly Direct Line Washer fluid level warning switch
      Speed limit exceeded display (for G.C.C. Countries) Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      PCS temporarily not available display (w/ Pre-crash Safety System) PCS temporarily not available display Combination meter assembly CAN Seat belt control ECU
      EV mode currently not available display EV mode currently not available display Combination meter assembly CAN Power management control ECU
      EV mode not available warming up display EV mode not available warming up display Combination meter assembly CAN Power management control ECU
      EV mode not available low battery display EV mode not available low battery display Combination meter assembly CAN Power management control ECU
      EV mode not available excessive speed display EV mode not available excessive speed display Combination meter assembly CAN Power management control ECU
      EV mode not available excessive acceleration display EV mode not available excessive speed display Combination meter assembly CAN Power management control ECU
      EV mode deactivated display EV mode deactivated display Combination meter assembly CAN Power management control ECU
      EV mode deactivated low battery display EV mode deactivated low battery display Combination meter assembly CAN Power management control ECU
      EV mode deactivated excessive speed display EV mode deactivated excessive speed display Combination meter assembly CAN Power management control ECU
      EV mode deactivated excessive acceleration display EV mode deactivated excessive acceleration display Combination meter assembly CAN Power management control ECU
      Theft sensor off display (w/ Intrusion Sensor) Theft sensor off display Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Theft sensor on display (w/ Intrusion Sensor) Theft sensor on display Combination meter assembly CAN Main body ECU (Multiplex network body ECU)

    5. Buzzer

      Buzzer Communication Signal Receiver Communication Line Sender
      Ready buzzer Ready buzzer Combination meter assembly CAN Power management control ECU
      Seat belt warning buzzer Driver side seat belt buckle switch Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Front passenger side seat belt buckle switch Direct Line Front seat inner belt assembly RH (for LHD) or LH (for RHD)
      Front passenger seat condition Direct Line Separate type front seat cushion pad
      Shift selection R CAN Power management control ECU
      Shift selection P
      Rear RH door courtesy switch (w/ Rear Seat Belt Warning) CAN Main body ECU (Multiplex network body ECU)
      Rear LH door courtesy switch (w/ Rear Seat Belt Warning)
      Rear seat belt buckle switch RH (w/ Rear Seat Belt Warning) Direct Line Rear seat inner belt assembly RH
      Rear seat belt buckle switch center (w/ Rear Seat Belt Warning) Rear seat inner with center belt assembly LH
      Rear seat belt buckle switch LH (w/ Rear Seat Belt Warning)
      Parking brake switch CAN Main body ECU (Multiplex network body ECU)
      EPS warning buzzer EPS warning Combination meter assembly CAN Power steering ECU assembly
      Entry and start system warning buzzer (Intermittent) Entry and start system warning buzzer (Continual) Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Immobiliser key identification completion Immobiliser key identification completion Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Master warning buzzer Master warning buzzer Combination meter assembly CAN Related ECUs
      Dynamic radar cruise control low speed cancel (w/ Dynamic Radar Cruise Control System) Dynamic radar cruise control low speed cancel Combination meter assembly CAN Driving support ECU assembly
      Entry and start system warning buzzer (Single) Entry and start system warning buzzer (Single) Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Emergency key operation
      Brake control system warning buzzer Brake control system warning buzzer Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Entry and start system warning buzzer (Continual) Entry and start system warning buzzer (Continual) Combination meter assembly CAN Certification ECU (Smart key ECU assembly)
      Shift selection P request buzzer Shift selection P request buzzer Combination meter assembly CAN Power management control ECU
      HV battery charge request buzzer HV battery charge request buzzer Combination meter assembly CAN Power management control ECU
      Speed limit exceeded warning buzzer (for G.C.C. Countries) Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (skid control ECU)
      Driving with parking brake unreleased warning buzzer Parking brake switch Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Vehicle speed CAN Brake booster with master cylinder assembly (skid control ECU)
      Driving with any door opened warning buzzer Door courtesy switch Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Vehicle speed CAN Brake booster with master cylinder assembly (skid control ECU)
      Sports shift reject buzzer Sports shift reject buzzer Combination meter assembly CAN Power management control ECU
      Shift operation reject buzzer Shift operation reject buzzer Combination meter assembly CAN Power management control ECU
      EV reject buzzer EV reject buzzer Combination meter assembly CAN Power management control ECU
      Light reminder buzzer (w/ Light Reminder) Tail indicator Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Driver side door courtesy switch
      Sliding roof warning buzzer (w/ Sliding Roof) Sliding roof warning Combination meter assembly CAN Main body ECU (Multiplex network body ECU)
      Depress the accelerator pedal with shift selection N buzzer Shift selection N Combination meter assembly CAN Power management control ECU

    6. Others

      Signal Communication Signal Receiver Communication Line Sender
      Vehicle speed Vehicle speed Combination meter assembly CAN Brake booster with master cylinder assembly (Skid control ECU)
      Related ECUs CAN Combination meter assembly
      Related ECUs Direct Line Combination meter assembly
      Rear seat belt condition (w/ Seat Heater) Rear seat belt condition (for RH) signal Combination meter assembly Direct Line Rear seat inner belt assembly RH
      Rear seat belt condition (for center) signal Rear seat inner with center belt assembly
      Rear seat belt condition (for LH) signal
      ECO light (blue) or sport light (red) ECO light (blue) or sport light (red) - - -
      Warning notification display Warning notification display Navigation computer sub-assembly CAN Combination meter assembly

  3. MULTI-INFORMATION DISPLAY FLOW CHART


    1. Multi-information display flow chart

      A003VK4E01
      A003ZINE01

    2. EACH WARNING DISPLAY


      1. Each warning display for combination meter assembly

        Tech Tips

        Illustrations may differ from the actual screen displayed depending on the specifications of the vehicle.

        A003ZT0

    3. LED INITIAL CHECK


      1. Check the illumination function of the warning or indicator lights listed below when turning the power switch on (IG).


      • *1: w/ Automatic Type Headlight Beam Level Control

      • *2: w/ Pre-crash Safety System

      • *3: When turning the power switch on (IG), if it takes 3 seconds or more for the READY indicator light to illuminate, the warning or indicator light turns off to right after the READY indicator light illuminates.