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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System (Except 12.3 Inch Display) - Diagnostic Codes & Symptom Tests (1 Of 2) >> METER / GAUGE SYSTEM (except 12.3 Inch Display) >> On-Vehicle Inspection [12/2019 - ] >> Procedure

On-Vehicle Inspection [12/2019 - ]: Procedure

  1. INSPECT SPEEDOMETER 
    NOTE:
    • The combination meter assembly receives the vehicle speed signal from the skid control ECU (brake booster with master cylinder assembly) via CAN communication. Therefore, perform the following inspection referring to values on the Data List of the skid control ECU (brake booster with master cylinder assembly) because it is the source of the vehicle speed signal.
    • Data List values of the skid control ECU (brake booster with master cylinder assembly) are used for this inspection. Therefore, make sure to perform this inspection after confirming that DTCs are not output.
    • If the tire size or tire inflation pressure is not within the specified range, or the tires are excessively worn, the speedometer indication error will increase. Therefore, make sure to perform this inspection after checking that the tire size, tire inflation pressure and tire wear are in the specified range.
    1. Warm up the engine.
    2. Connect the GTS to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the GTS on.
    5. Enter the following menus: Chassis / Brake/EPB / Data List.
    6. Read the Data List according to the display on the GTS.

      Chassis > Brake/EPB > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Vehicle Speed Vehicle speed Min.: 0.0 km/h (0.0 mph)
      Max.: 6553.5 km/h (4072 mph)      		 Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations

      Chassis > Brake/EPB > Data List 

      Tester Display
      Vehicle Speed
      REFERENCE (FOR SPEEDOMETER WITH IMPERIAL UNITS FOR MAIN SCALE):

      GTS Indication (mph) Acceptable Range (mph)
      20 19.3 to 21.8
      40 39.5 to 42.3
      60 60.0 to 62.8
      80 80.2 to 83.4
      100 100.7 to 103.9
      120 121.1 to 124.3
      REFERENCE (FOR SPEEDOMETER WITH METRIC UNITS FOR MAIN SCALE):

      GTS Indication (km/h) Acceptable Range (km/h)
      20 18.5 to 22.5
      40 38.7 to 43.2
      60 59.2 to 63.7
      80 79.3 to 84.3
      100 99.8 to 104.8
      120 120.2 to 125.3
      140 140.7 to 145.7
      160 161.2 to 166.2
      180 181.6 to 186.6
      200 202.1 to 207.1

      OK

      Speedometer reading is within the acceptable range at each vehicle speed.

  2. INSPECT TACHOMETER (for Gasoline Model) 
    1. Warm up the engine.
    2. Connect the GTS to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the GTS on.
    5. Enter the following menus: Powertrain / Engine / Data List.
    6. Read the Data List according to the display on the GTS.

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Engine Speed Engine speed Min.: 0 rpm, Max.: 16383 rpm 650 to 750 rpm: Idling (shift lever in N, engine warmed up and A/C off) When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.

      Powertrain > Engine > Data List 

      Tester Display
      Engine Speed
      REFERENCE:

      GTS Indication (rpm) Acceptable Range (rpm)
      Data in () is for Reference
      700 630 to 770
      1000 900 to 1100
      2000 1850 to 2150
      3000 2800 to 3200
      4000 3800 to 4200
      5000 4800 to 5200
      6000 5750 to 6250
      7000 6700 to 7300

      OK

      Tachometer reading is within the acceptable range at each engine speed.

  3. INSPECT WARNING OR INDICATOR LIGHT ILLUMINATION (INITIAL CHECK) 
    1. for HV Model
      1. Turn the ignition switch off.
      2. Turn the ignition switch to ON or ON (READY), and check the operation of the warning and indicator lights in the following table.

        HINT: 

        The illumination of each warning light and indicator light varies.

        OK

        All of the lights illuminate and then turn off.

        Warning or Indicator Light
        SRS warning light
        EPS warning light
        MIL (Check engine warning light)
        Charge warning light
        Brake warning light/red (malfunction)
        Brake warning light/yellow (minor malfunction)
        Brake hold standby indicator light
        ABS warning light
        VSC OFF indicator light
        Slip indicator light
        Tire pressure warning light
        PCS warning light
        Clearance sonar OFF indicator light*1
        PKSB OFF indicator light*1, *2
        BSM OFF indicator light*3
        1. *1: w/ Intuitive Parking Assist System
        2. *2: w/ Parking Support Brake System
        3. *3: w/ Blind Spot Monitor System
    2. for Gasoline Model
      1. Turn the ignition switch off.
      2. Turn the ignition switch to ON, and check the operation of the warning and indicator lights in the following table.

        HINT: 

        The illumination of each warning light and indicator light varies.

        OK

        All of the lights illuminate and then turn off.

        Warning or Indicator Light
        SRS warning light
        EPS warning light
        MIL (Check engine warning light)
        Charge warning light
        Brake warning light/red (malfunction)
        Brake warning light/yellow (minor malfunction)
        Brake hold standby indicator light
        ABS warning light
        VSC OFF indicator light
        Slip indicator light
        Tire pressure warning light
        Stop and start off indicator light*1
        Stop and start indicator light*1
        Eco driving indicator light
        PCS warning light
        Clearance sonar OFF indicator light*2
        PKSB OFF indicator light*2, *3
        BSM OFF indicator light*4
        Downhill assist control indicator light
        1. *1: w/ Stop and Start System
        2. *2: w/ Intuitive Parking Assist System
        3. *3: w/ Parking Support Brake System
        4. *4: w/ Blind Spot Monitor System
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