METER / GAUGE SYSTEM ON-VEHICLE INSPECTION


  1. INSPECT SPEEDOMETER


    1. Check speedometer operation.

      Note


      • The meter ECU receives the vehicle speed signal from the skid control ECU via CAN communication. Therefore, perform the following inspection referring to values on the Data List of the skid control ECU because it is the source of the vehicle speed signal.

      • The Data List values of the skid control ECU are used for this inspection. Therefore, make sure to perform the inspection after confirming that no DTCs are output from the brake control system.

      • 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 the inspection after checking that the tire size, tire inflation pressure and tire wear are in the specified range.


      1. Before starting the following inspection, check if the Brake Control System outputs the DTCs.

      2. Check the values by referring to the table below.

        ABS/VSC/TRC
        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
        Reference
        Intelligent Tester Indication (km/h) Acceptable Range (km/h)
        20 20.5 to 24.6
        40 40.9 to 45.3
        60 61.3 to 66.0
        80 81.7 to 86.7
        100 102.1 to 107.5
        120 122.5 to 128.2
        140 142.9 to 148.9

  2. INSPECT TACHOMETER


    1. Check the operation.


      1. Connect the intelligent tester, and start the engine.

      2. Compare the test results with the tachometer indications.

        Reference
        Intelligent Tester 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