METER / GAUGE SYSTEM ON-VEHICLE INSPECTION


  1. INSPECT SPEEDOMETER


    1. Check the operation.


      1. Using a speedometer tester (calibrated chassis dynamometer), check the speedometer indication according to the table below.

        Reference: km/h
        Chassis Dynamometer Indication (km/h)

        Acceptable Range (km/h)

        Data in ( ) is for reference
        20 (17.5 to 21.5)
        40 38.0 to 42.0
        60 58.0 to 63.0
        80 78.0 to 84.0
        100 98.5 to 104.5
        120 119.0 to 125.0
        140 139.0 to 146.0
        160 159.0 to 167.0
        180 179.0 to 188.0
        200 199.0 to 209.0

        Note

        Tire wear as well as over or under inflation will cause errors.

      2. Check the deviation of the speedometer indication from the acceptable range.

        Reference
        Less than 0.5 km/h (0.3 mph)

        Tech Tips

        If the indication is not as specified, go to Problem Symptoms Table Click here.

  2. INSPECT TACHOMETER


    1. Connect the GTS, and start the engine.

    2. Compare the test results with the tachometer indications.

      DC 13.5 V, at 25°C (77°F)
      GTS Indication (r/min)

      Acceptable Range

      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

      Tech Tips

      If the indication is not as specified, go to Problem Symptoms Table Click here.