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Home >> Toyota >> 2021 >> C-HR LE >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display - Diagnostic Codes & Symptom Tests >> Meter / Gauge System >> On-Vehicle Inspection [10/2017 - 05/2018] >> Procedure

On-Vehicle Inspection [10/2017 - 05/2018]: Procedure

  1. INSPECT COMBINATION METER ASSEMBLY 
    1. Check speedometer operation
      NOTE:
      • The combination meter assembly receives the vehicle speed signal from the skid control ECU (brake actuator assembly) via CAN communication. Therefore, perform the following inspection referring to values on the Data List of the skid control ECU (brake actuator assembly) because it is the source of the vehicle speed signal.
      • Data List values of the skid control ECU (brake actuator 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 Techstream to the DLC3.
      3. Turn the ignition switch ON.
      4. Turn the Techstream on.
      5. Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Data List.
      6. Read the Data List according to the display on the Techstream.

        Chassis > ABS/VSC/TRAC/EPB > Data List 

        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Vehicle Speed Maximum wheel speed sensor reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations

        Chassis > ABS/VSC/TRAC/EPB > Data List 

        Tester Display
        Vehicle Speed
        REFERENCE KM/H (W/O OCCUPANT CLASSIFICATION SYSTEM)

        Techstream Indication (km/h) Acceptable Range (km/h)
        20 21.0 to 25.0
        40 41.7 to 46.2
        60 62.7 to 67.2
        80 83.4 to 88.4
        100 104.3 to 109.3
        120 125.1 to 130.6
        140 145.8 to 151.8
        160 166.2 to 173.2
        180 186.9 to 194.5
        200 207.7 to 215.7
        220 228.4 to 236.8
        REFERENCE KM/H (W/ OCCUPANT CLASSIFICATION SYSTEM AND W/O DAYTIME RUNNING LIGHT OFF FUNCTION)

        Techstream 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
        120 120.3 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
        220 222.6 to 227.6
        REFERENCE KM/H (W/ OCCUPANT CLASSIFICATION SYSTEM AND W/ DAYTIME RUNNING LIGHT OFF FUNCTION)

        Techstream Indication (MPH) Acceptable Range (MPH)
        20 19.3 to 21.8
        40 39.5 to 42.3
        60 60 to 62.8
        80 80.2 to 83.4
        100 100.7 to 103.9
        120 121.2 to 124.4
        140 141.6 to 144.8

        OK

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

    2. Inspect tachometer
      1. Warm up the engine.
      2. Connect the Techstream to the DLC3.
      3. Turn the ignition switch ON.
      4. Turn the Techstream on.
      5. Enter the following menus: Powertrain / Engine and ECT / Data List.
      6. Read the Data List according to the display on the Techstream.

        Powertrain > Engine and ECT > Data List 

        Tester Display Measurement Item Range Normal Condition Reference Value Diagnostic Note
        Engine Speed Engine speed Min.: 0 rpm, Max.: 16383 rpm 710 to 810 rpm: Idling with warm engine - When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.

        Powertrain > Engine and ECT > Data List 

        Tester Display
        Engine Speed
        REFERENCE

        Techstream 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
        8000 (7700 to 8300)

        OK

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

    3. Check LED illumination (LED check)
      1. Check the illumination function of the warning or indicator lights listed below when turning the ignition switch ON.

        OK

        Warning or Indicator Light Control ECU Specified Condition
        Brake warning light Skid control ECU (brake actuator assembly) Warning or indicator light comes on for about 3 seconds after turning the ignition switch to ON.
        VSC OFF indicator light Skid control ECU (brake actuator assembly)
        Slip indicator light Skid control ECU (brake actuator assembly)
        ABS warning light Skid control ECU (brake actuator assembly)
        Tire pressure warning light Tire pressure warning ECU and receiver
        Master warning light Related ECUs
        EPB indicator light Skid control ECU (brake actuator assembly)
        EPB warning light Skid control ECU (brake actuator assembly)
        AHB indicator light*1 Main body ECU (Multiplex network body ECU)
        BSM indicator light*2 Blind spot monitor sensor LH
        RCTA indicator light*2 Blind spot monitor sensor LH
        SRS warning light Airbag sensor assembly Warning light comes on for about 6 seconds after turning the ignition switch to ON.
        Charge warning light ECM Warning light comes on when the ignition switch is turned ON.
        MIL (Check engine warning light) ECM
        EPS warning light Power steering ECU assembly
        1. *1: w/ Toyota Safety Sense P
        2. *2: w/ Blind Spot Monitor System
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