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On-Vehicle Inspection

  1. INSPECT SPEEDOMETER 
    1. Check the operation.
      1. Using a speedometer tester, check the speedometer indication according to the table below.
        REFERENCE: MPH (U.S.A.)

        Chassis dynamometer indication Acceptable range
        20 mph 20.0 to 23.0 mph
        40 mph 40.0 to 43.5 mph
        60 mph 60.0 to 64.0 mph
        80 mph 80.0 to 84.5 mph
        100 mph 100.0 to 105.0 mph
        120 mph 120.0 to 125.5 mph
        140 mph 140.0 to 146.0 mph
        160 mph 160.0 to 166.5 mph
        REFERENCE: KM/H (CANADA)

        Chassis dynamometer indication Acceptable range
        Data in ( ) is for reference
        20 km/h (17.5 to 21.5 km/h)
        40 km/h 38.0 to 42.0 km/h
        60 km/h 58.0 to 63.0 km/h
        80 km/h 78.0 to 84.0 km/h
        100 km/h 98.5 to 104.5 km/h
        120 km/h 119.0 to 125.0 km/h
        140 km/h 139.0 to 146.0 km/h
        160 km/h 159.0 to 167.0 km/h
        180 km/h 179.0 to 188.0 km/h
        200 km/h 199.0 to 209.0 km/h
        220 km/h 219.0 to 230.0 km/h
        240 km/h 239.0 to 251.0 km/h
        NOTE:

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

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

        Reference

        Below 0.5 km/h (0.3 mph)

  2. INSPECT OUTPUT SIGNAL OF VEHICLE SPEED 
    1. Check for the signal.
      Fig 1: Identifying Combination Meter Assembly Wire Harness View
      GTY150472Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. While driving the vehicle at 10 km/h, check the voltage between terminals C9-1 and C9-18 of the combination meter assembly.

        OK

        Fluctuation between 1V or less and 7.7 to 14 V is repeated 7 times within 1 sec.

        NOTE:

        Check it with the ignition switch turned to the ON position and the connector connected.

  3. INSPECT TACHOMETER 
    1. Check operation.
      1. Connect the tune-up test tachometer, and start the engine.
        NOTE:
        • Reversing the connection of the tachometer will damage the transistors and the insides of the diodes.
        • When removing or installing the tachometer, be careful not to drop or subject it to heavy shocks.
      2. Compare the result of the test with the standard indication.
        DC 13.5 V, 25°C (77°F)

        Techstream indication (rpm) Acceptable range (rpm)
        Data in ( ) is for reference
        700 580 - 720
        1,000 (900 - 1100)
        2,000 (1850 - 2150)
        3,000 2800 - 3200
        4,000 (3800 - 4200)
        5,000 4800 - 5200
        6,000 (5750 - 6250)
        7,000 6700 - 7300
        8,000 (7700 - 8300)
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