METER / GAUGE SYSTEM SYSTEM DIAGRAM


  1. CAN SIGNAL

    A01NMDYE02
  2. DIRECT LINE SIGNAL


    1. Combination Meter Assembly

      A01NJOZE01
    2. Headup Display (Combination Meter Mirror ECU)

      A01NMOLE05
  3. INPUT AND OUTPUT SIGNALS OF COMBINATION METER ASSEMBLY


    1. Meter or Gauge

      Meter or Gauge Communication Signal Sender Communication Line Receiver
      Speedometer Vehicle speed Skid Control ECU CAN Combination Meter Assembly
      Hybrid system indicator Hybrid system indicator status Power Management Control ECU CAN Combination Meter Assembly
      Fuel receiver gauge Fuel level Fuel Sender Gauge Assembly Direct Line Combination Meter Assembly
      Fuel injection ECM CAN Combination Meter Assembly
      Engine coolant temperature receiver gauge Engine coolant temperature Power Management Control ECU CAN Combination Meter Assembly
      Coolant temperature switch Coolant Temperature Switch Direct Line
      ODO/TRIP meter ODO/TRIP change Light Control Rheostat Direct Line Combination Meter Assembly
      ODO Skid Control ECU CAN
      Meter illumination Illumination level Light Control Rheostat Direct Line Combination Meter Assembly
      Auto dimmer Main Body ECU (Multiplex Network Body ECU) CAN
      Tail cancel Combination Meter Assembly CAN Main Body ECU (Multiplex Network Body ECU)
      Lounge illumination off
      Illumination level Combination Meter Assembly CAN Certification ECU (Smart Key ECU Assembly)
      Accessory meter assembly Accessory meter information Combination Meter Assembly Direct Line Accessory Meter Assembly
      Headup display (Combination meter mirror ECU) Headup display (Combination meter mirror ECU) information Combination Meter Assembly Direct Line Headup Display (Combination Meter Mirror ECU)
      Satellite switch set Satellite Switch Set Direct Line Headup Display (Combination Meter Mirror ECU)
      Audio and visual Multi-media Module Receiver Assembly*1 AVC-LAN Headup Display (Combination Meter Mirror ECU)

      • *1: w/ Navigation System

    2. Warning or Indicator

      Warning or Indicator Communication Signal Sender Communication Line Receiver
      High beam indicator light High beam indicator light Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Turn indicator light Turn indicator Turn Signal Flasher Direct Line Combination Meter Assembly
      Fuel level warning light Fuel level Fuel Sender Gauge Assembly Direct Line Combination Meter Assembly
      Brake warning light Brake warning light Skid Control ECU CAN Combination Meter Assembly
      Parking brake switch Main Body ECU (Multiplex Network Body ECU) CAN
      Electrically controlled brake warning light Electrically controlled brake warning Skid Control ECU CAN Combination Meter Assembly
      SRS warning light SRS warning light Center Airbag Sensor Assembly CAN Combination Meter Assembly
      Open door warning light Each door courtesy switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Charge warning light Charge warning light Power Management Control ECU CAN Combination Meter Assembly
      MIL (Check engine warning light) MIL (Check engine warning light) ECM Direct Line Combination Meter Assembly
      Driver side seat belt warning light Driver side seat belt buckle switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      ABS warning light ABS warning light Skid Control ECU CAN Combination Meter Assembly
      EPS warning light EPS warning light Power Steering ECU CAN Combination Meter Assembly
      Air suspension indicator light*1 Air suspension indicator Suspension Control ECU CAN Combination Meter Assembly
      Luggage mode indicator light*1 Luggage mode indicator Suspension Control ECU CAN Combination Meter Assembly
      Tail indicator light Tail light Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Slip indicator light Slip indicator Skid Control ECU CAN Combination Meter Assembly
      Shift position indicator Shift position ECM CAN Combination Meter Assembly
      VSC OFF indicator light VSC OFF indicator Skid Control ECU CAN Combination Meter Assembly
      Hybrid snow indicator light*2 ECT snow indicator ECM CAN Combination Meter Assembly
      PCS warning light*3 PCS warning Driving Support ECU Assembly CAN Combination Meter Assembly
      Cruise main indicator light Cruise main indicator ECM CAN Combination Meter Assembly
      Cruise main indicator light*4 Cruise main indicator (Constant vehicle speed mode) Driving Support ECU Assembly CAN Combination Meter Assembly
      Cruise main indicator (Vehicle-to-vehicle distance control mode)
      Clearance sonar indicator light*5 Clearance sonar indicator Clearance Warning ECU CAN Combination Meter Assembly
      AFS OFF indicator light*6 AFS OFF indicator AFS ECU (Headlight Swivel ECU Assembly) CAN Combination Meter Assembly
      Front fog indicator light Front fog indicator Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Rear fog indicator light*7 Rear fog indicator Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Eco mode indicator light Eco mode indicator Power Management Control ECU CAN Combination Meter Assembly
      EV indicator light EV indicator light Power Management Control ECU CAN Combination Meter Assembly
      Ready indicator light Ready indicator Power Management Control ECU CAN Combination Meter Assembly
      Master warning light Each system warning Skid Control ECU CAN Combination Meter Assembly
      Power Steering ECU
      Clearance Warning ECU*5
      Certification ECU (Smart Key ECU Assembly)
      Center Airbag Sensor Assembly
      Power Management Control ECU
      Main Body ECU (Multiplex Network Body ECU)
      Driving Support ECU Assembly*4
      Active Stabilizer Control ECU
      Suspension Control ECU*1
      AFS ECU (Headlight Swivel ECU Assembly)*6
      Sport mode indicator light Sport mode indicator Power Management Control ECU CAN Combination Meter Assembly
      Tire pressure warning light*8 Tire pressure warning Tire pressure warning ECU CAN Combination Meter Assembly

      • *1: w/ Air Suspension

      • *2: except G.C.C. Countries

      • *3: w/ Pre-crash Safety System

      • *4: w/ Dynamic Radar Cruise Control System

      • *5: w/ Lexus Parking Assist-sensor System

      • *6: w/ AFS

      • *7: w/ Rear Fog Light

      • *8: w/ Tire Pressure Warning System

    3. Cruise Information Display

      Cruise Information Display Communication Signal Sender Communication Line Receiver
      Average fuel consumption Engine speed ECM CAN Combination Meter Assembly
      Ready indicator
      Fuel injection
      Vehicle speed Skid Control ECU CAN
      ODO
      Multi-information switch Multi-information Switch (Steering Pad Switch Assembly) Direct Line
      Average vehicle speed Vehicle speed Skid Control ECU CAN Combination Meter Assembly
      ODO
      Engine speed ECM
      Ready indicator
      Multi-information switch Multi-information Switch (Steering Pad Switch Assembly) Direct Line
      Average fuel consumption after refueling display Engine speed ECM CAN Combination Meter Assembly
      Ready indicator
      Fuel injection
      ODO signal Skid Control ECU Direct Line
      Current fuel consumption Engine speed ECM CAN Combination Meter Assembly
      Ready indicator
      Fuel injection
      ODO Skid Control ECU CAN
      Driving range Engine speed ECM CAN Combination Meter Assembly
      Ready indicator
      Fuel injection
      Engine variation
      ODO Skid Control ECU CAN
      Destination Main Body ECU (Multiplex Network Body ECU) CAN
      Fuel level Fuel Sender Gauge Assembly Direct Line
      Multi-information display change Multi-information switch Multi-information Switch (Steering Pad Switch Assembly) Direct Line Combination Meter Assembly
      Energy flow display Energy flow Power Management Control ECU CAN Combination Meter Assembly
    4. Multi-information Display Message

      Multi-information Display Message Communication Signal Sender Communication Line Receiver
      Open door message Each door courtesy switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Steering lock message Steering lock warning Certification ECU (Smart Key ECU Assembly) CAN Combination Meter Assembly
      Multi-information display change Multi-information switch Multi-information switch (Steering Pad Switch Assembly) Direct Line Combination Meter Assembly
      Air suspension message*1 Air suspension message Suspension Control ECU CAN Combination Meter Assembly
      AWD message AWD message AWD Control ECU CAN Combination Meter Assembly
      Pre-crash safety message*2 Pre-crash safety message Seat Belt Control ECU CAN Combination Meter Assembly
      Cruise main indicator (Vehicle-to-vehicle distance control)*3 Dynamic radar cruise control message Driving Support ECU Assembly CAN Combination Meter Assembly
      Sliding roof message*4 Sliding roof message Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Entry and start system message Entry and start system message Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Certification ECU (Smart Key ECU Assembly)
      Engine immobiliser certification message Certification message ID Code Box (Immobiliser ECU) CAN Combination Meter Assembly
      Intrusion sensor message*5 Intrusion sensor message Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Low washer fluid message Low washer fluid message Washer Fluid Level Warning Switch Direct Line Combination Meter Assembly
      Oil pressure message Oil pressure Oil Pressure Switch Direct Line Combination Meter Assembly
      Clearance sonar indicator*6 Clearance sonar indicator Clearance Warning ECU CAN Combination Meter Assembly
      Headlight leveling message Headlight leveling message AFS ECU (Headlight Swivel ECU Assembly) CAN Combination Meter Assembly
      AFS system check message AFS system check message
      LED headlight system check message LED headlight system check message
      TRC OFF message TRC OFF message Skid control ECU CAN Combination Meter Assembly
      Brake malfunction message Brake malfunction message Skid control ECU CAN Combination Meter Assembly
      Driving with parking brake unreleased message Parking brake switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Vehicle speed Skid Control ECU CAN
      Speed limit exceeded message*7 Vehicle speed Skid Control ECU CAN Combination Meter Assembly
      Low engine oil level Oil level Oil Level Sensor Direct Line Combination Meter Assembly
      Hybrid system check message Hybrid system check message Power Management Control ECU CAN Combination Meter Assembly
      Hybrid EV mode message Hybrid EV mode message Power Management Control ECU CAN Combination Meter Assembly
      Power steering system check message Power steering system check message Power Steering ECU CAN Combination Meter Assembly
      Airbag system check message Airbag system check message Center Airbag Sensor Assembly CAN Combination Meter Assembly
      ABS check message ABS check message Skid Control ECU CAN Combination Meter Assembly
      Engine overheat message Engine overheat message ECM CAN Combination Meter Assembly
      Turn lights off message Turn lights off message Power Management Control ECU CAN Combination Meter Assembly
      Low fuel message Low fuel message Fuel Sender Gauge Assembly Direct Line Combination Meter Assembly
      N position Depress the accelerator in N position Power Management Control ECU CAN Combination Meter Assembly
      Low tire pressure check all tires message*8 Tire pressure display indicator condition Tire Pressure Warning ECU CAN Combination Meter Assembly
      Tire pressure warning indicator condition
      Tire pressure unit information
      Tire pressure indicator number information
      Tire pressure format select flag
      Tire pressure information
      Tire pressure indicator information

      • *1: w/ Air Suspension

      • *2: w/ Pre-crash Safety System

      • *3: w/ Dynamic Radar Cruise Control System

      • *4: w/ Sliding Roof

      • *5: w/ Theft Deterrent System

      • *6: w/ Lexus Parking Assist-sensor System

      • *7: for G.C.C. Countries

      • *8: w/ Tire Pressure Warning System

    5. Buzzer

      Buzzer Communication Signal Sender Communication Line Receiver
      Light reminder buzzer Driver side door courtesy switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Power switch
      Shift down reject buzzer Shift down reject buzzer ECM CAN Combination Meter Assembly
      Seat belt warning buzzer Driver side seat belt buckle switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Driver side door courtesy switch
      Front passenger side door courtesy switch
      Rear door courtesy switch
      Front passenger side seat belt buckle switch Front Passenger Side Seat Belt Buckle Switch Direct Line
      Shift position R ECM CAN
      Shift position P ECM CAN
      Vehicle speed Skid Control ECU CAN
      Driving with any door opened warning buzzer Vehicle speed Skid Control ECU CAN Combination Meter Assembly
      Each door courtesy switch Main Body ECU (Multiplex Network Body ECU)
      Entry and start system warning buzzer Power switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Engine immobiliser certification buzzer Certification complete ID Code Box (Immobiliser ECU) CAN Combination Meter Assembly
      Driving with parking brake unreleased warning buzzer Parking brake switch Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Vehicle speed Skid Control ECU CAN
      Sliding roof open warning*4 Sliding roof open warning buzzer request Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Light reminder buzzer Door courtesy switch signal Main Body ECU (Multiplex Network Body ECU) CAN Combination Meter Assembly
      Power switch signal Power Management Control ECU
      Dynamic radar cruise control low speed cancel buzzer*5 Dynamic radar cruise control low speed cancel buzzer Driving Support ECU Assembly CAN Combination Meter Assembly
      EV reject buzzer EV reject buzzer Power Management Control ECU CAN Combination Meter Assembly
      Ready buzzer Ready buzzer Power Management Control ECU CAN Combination Meter Assembly
      Hybrid battery charge request buzzer Hybrid battery charge request buzzer Power Management Control ECU CAN Combination Meter Assembly
      NDB warning buzzer NDB warning buzzer Power Management Control ECU CAN Combination Meter Assembly
      Accelerator depressed with shift lever in N buzzer Accelerator depressed with shift lever in N Power Management Control ECU CAN Combination Meter Assembly
      EPS warning buzzer EPS warning Power Management Control ECU CAN Combination Meter Assembly
    6. Others

      Signal Communication Signal Sender Communication Line Receiver
      Vehicle speed signal Vehicle speed Skid Control ECU Direct Line Combination Meter Assembly
      Vehicle speed Combination Meter Assembly Direct Line Related ECUs
      Front passenger side seat belt warning light Front passenger side seat belt buckle switch Front Seat Inner Belt Assembly Direct Line Combination Meter Assembly
      Front passenger side seat belt warning light Combination Meter Assembly Direct Line Accessory Meter Assembly*1, Radio Receiver Assembly*2 or Multi-media Module Receiver Assembly*3

      • *1: w/o Multi-display

      • *2: w/o Navigation System

      • *3: w/ Navigation System

      • *4: w/ Sliding Roof

      • *5: w/ Dynamic Radar Cruise Control System