METER / GAUGE SYSTEM SYSTEM DESCRIPTION


  1. OUTLINE OF THE COMBINATION METER

    A015ZKYE01

    1. Meter/Gauge

      Item Detail
      Speedometer Indicates the vehicle speed based on a signal received from the Skid Control ECU. (Direct Line)
      Tachometer Indicates the engine speed based on a signal received from the ECM. (Direct Line)
      Fuel gauge Indicates the fuel level based on a fuel level signal received from the fuel sender gauge (main and sub) (Direct Line) and a fuel injection signal and an ST signal from the ECM. (CAN-BEAN)
      Engine coolant temperature receiver gauge Indicates the engine coolant temperature based on a signal received from the ECM. (CAN-BEAN)
      Engine oil temperature gauge Indicates the engine oil temperature based on a signal received from the engine oil temperature sensor. (Direct Line)
      Voltage meter Indicates the battery voltage based on the power source voltage supplied to the meter CPU. (Direct Line)

    2. Warning/Indicator

      Item Detail
      Turn Receives a turn signal from the turn signal flasher. (Direct Line)
      Beam Receives a beam signal from the main body ECU RH (Cowl Side Junction Block RH). (BEAN)
      Charge Receives a charge signal from the ECM. (CAN-BEAN)
      Check engine Receives a MIL (check engine indicator light) signal from the ECM. (Direct Line)
      Door Open door indicator light comes on receiving a door condition signal from the main body ECU RH (Cowl Side Junction Block RH). (BEAN)
      Driver side seat belt Receives a driver side seat belt signal from the center airbag sensor assembly. (CAN-BEAN)
      Front passenger side seat belt Receives a front passenger side seat belt signal from the front passenger side front seat inner belt assembly (Direct Line) and transmits a front passenger side seat belt condition signal to the integration control and panel assembly*1 or multi-display*2. (Direct Line)
      Tail Receives a headlight or taillight signal from the main body ECU RH (Cowl Side Junction Block RH). (BEAN)
      A/T shift Receives an A/T shift condition signal from the park/neutral position switch and the ECM. (CAN-BEAN)
      Sport Receives a sport signal from the ECM. (CAN-BEAN)
      Snow Receives an snow signal from the ECM. (CAN-BEAN)
      A/T fluid temperature Receives an A/T fluid temperature signal from the ECM. (CAN-BEAN)
      Fuel Receives a fuel signal from the fuel sender gauges (main and sub). (Direct Line)
      ABS Receives an ABS signal from the skid control ECU. (CAN-BEAN)
      Slip Receives a SLIP signal from the skid control ECU. (CAN-BEAN)
      Brake Receives a BRAKE signal from the skid control ECU. (CAN-BEAN)
      VSC OFF Receives a VSC OFF signal from the skid control ECU. (CAN-BEAN)
      Cruise Receives a cruise signal from the ECM. (CAN-BEAN)
      Airbag Receives an airbag signal from the center airbag sensor assembly. (CAN-BEAN)
      AFS OFF Receives an AFS OFF signal from the AFS ECU. (BEAN)
      EPS Receives an EPS signal from the EPS ECU. (CAN-BEAN)
      PCS*3 Receives a PCS signal from the seat belt control ECU. (CAN-BEAN)
      Front fog Receives a front fog signal from the main body ECU RH (Cowl side junction block ECU RH). (BEAN)
      Rear fog Receives a rear fog signal from the main body ECU RH (Cowl side junction block ECU RH). (BEAN)
      Sonar*4 Receives a sonar signal from the clearance warning ECU. (BEAN)
      Master Master caution indicator light comes on when the warning display appears.

      • *1: w/o Navigation System

      • *2: w/ Navigation System

      • *3: w/ Pre-crash Safety System

      • *: w/ Lexus Parking Assist-sensor System

    3. Multi-information Display

      Tech Tips


      • The multi-information display is located in the upper center of the combination meter.

      • The display shows a message or animation for each of the functions described in the table below.

      Item Detail
      Cruise information display Outside temperature

      Seven types of information (outside temperature, average fuel consumption, average fuel consumption after refueling, average vehicle speed, possible running distance, instant fuel consumption, and A/T shift position) can be displayed.

      The display can be switched by using the DISP switch.
      Average fuel consumption
      Average fuel consumption after refueling
      Average vehicle speed
      Possible running distance
      Instant fuel consumption
      A/T shift position
      Warning display Door warning Interrupts the multi-information display immediately when a warning occurs.
      Each system warning
      Satellite switch

      In the satellite switch mode, 4 functions (Sonar ON/OFF*2, Intrusion Sensor*3, AFS ON/OFF, PCS brake*4) can be displayed.

      The function can be changed using the satellite switch (RH switch, ON/OFF switch, LH switch).
      Dynamic Radar Cruise Display*1 Displays the operating condition of the dynamic radar cruise control.
      Parking Assist-sensor Display*2 Displays the location of an obstacle and the approximate distance between the vehicle and the obstacle and displays malfunction warning messages about sensor freezing or presence of dirt on the sensors.
      DTC (Diagnostic Trouble Code) display Displays 2 digit DTCs pertaining to the VSC function.

      • *1: w/ Dynamic Radar Cruise Control System

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

      • *3: w/ Intrusion Sensor

      • *4: w/ Pre-crash Brake

    4. ODO/TRIP Display

      Item Display
      ODO/TRIP display This display switches between odometer, trip meter A, and trip meter B in accordance with the operation of the TRIP meter reset knob.

  2. MULTI-INFORMATION DISPLAY FLOW CHART


    1. Multi-information display flow chart

      A015ZH7E01

    2. Each warning indication

      Tech Tips

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

      A01622YE01

  3. VOLTAGE METER

    A0162Q9E03

    1. The voltage meter displays the battery voltage using one bar. If the battery voltage is too low (below 10 V), the first bar will blink to inform the driver. If the voltage is too high (17 V or higher), the seventh bar will blink. When turning the engine switch on (IG), the meter CPU determines the battery voltage based on the power source voltage supplied to it.

  4. ENGINE OIL TEMPERATURE GAUGE

    A0162M1E02

    1. The meter CPU uses the engine oil temperature sensor to determine the temperature of the engine oil. The resistance of the engine oil temperature sensor will vary between approximately 30 kΩ or higher with the engine oil temperature is 0°C (32°F), and approximately 0.3 kΩ with the engine oil temperature is 155°C (311°F). Voltage measured at this point will vary as the engine temperature is changed.

      The engine oil temperature gauge displays the engine oil temperature using seven bars. The meter CPU calculates the engine oil temperature based on signals from the engine oil temperature sensor via the direct line. When the engine oil temperature becomes 140°C (284°F) or higher, all the bars blink and the warning message is displayed in the multi-information display.

      Tech Tips


      • If the circuit is open, the lowest bar blinks.

      • If the circuit is shorted, all the bars blink and engine oil temperature warning light comes on.

  5. DIAGNOSIS SYSTEM


    1. Display example

      A015YYL

    2. The combination meter indicates diagnosis mode by blinking the warning light or the warning message in the multi-information display.

    Tech Tips


    • The multi-information display shows "DIAG" when the engine switch is on (IG) Click here.


    • Diagnosis information can be displayed on the multi-information display after connecting a jumper wire between TC (J21-13) and CG (J21-4) of the DLC3 connector.

  6. SATELLITE SWITCH


    1. A0162R6

      By using the satellite switch (RH switch, ON/OFF switch, LH switch), 4 different switch functions can be displayed and changed (Intrusion sensor*1, Sonar*2, AFS, PCS brake*3).


      • *1: w/ Intrusion Sensor

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

      • *3: w/ Pre-crash Brake

      Tech Tips


      • When the engine switch on (IG) while driving at 3 mph (5 km/h) or less, the switch except for Lexus parking assist-sensor system*2 can be displayed as shown in the illustration below.

      • The switch functions displayed are changed in the order shown in the illustration using the satellite switch (RH switch, LH switch). The function can be set using the ON/OFF switch.

      • The display automatically returns to the previous display 6 seconds after the satellite switch is operated. It will return to the previous display immediately if the DISP switch is operated.


      1. A015YZTE01

        Display example

  7. LED INITIAL CHECK


    1. The illumination function of the warning, indicator, or reminder light listed below can be confirmed when turn the engine switch on (IG).