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On-Vehicle Inspection

  1. CHECK SPEEDOMETER 
    1. Check operation.
      1. Using a speedometer tester, check that the speedometer reading is within the allowable range shown in the table below. Also, check for proper operation of the odometer.

        Reference 

        SPEEDOMETER TESTING REFERENCE CHART

        Standard Indication Allowable Range
        20 km/h 19.0 to 21.5 mph
        40 km/h 38 to 41.0 mph
        60 km/h 57.5 to 61.0 mph
        80 km/h 77.5 to 81.5 mph
        100 km/h 97 to 102.0 mph
        120 km/h -
        NOTE: Do not use worn, under inflated or overinflated tires, as the speedometer reading will be inaccurate.
      2. Check the deflection width of the speedometer indicator.

        Reference: Allowable range +- 0.5 km/h (0.3 mph) 

        If the result is not as specified, the speedometer may have a malfunction.

  2. CHECK OUTPUT SIGNAL OF VEHICLE SPEED 
    1. Check the output signal waveform.
      1. Remove the combination meter, but do not disconnect the connector.
      2. Using an oscilloscope, check the waveform of the combination meter.
        TESTER CONNECTION AND VEHICLE CONDITION

        Tester Connection Tool Setting Vehicle Condition
        C6-27 -Body ground 5 V / DIV., 20 msec. / DIV. Driving at approx. 20 km/h (12.4 mph)
        Fig 1: Identifying Combination Meter Connector Terminals
        G04224331Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        OK: Refer to the illustration. 

        HINT:

        As vehicle speed increases, the wavelength shortens.

  3. CHECK TACHOMETER 
    1. Check operation.
      1. Connect a tune-up test tachometer, and start the engine.
        NOTE:
        • Do not reverse the connections of the tachometer. This will damage its transistors and diodes.
        • When removing or installing the tachometer, be careful not to drop or strike it.
      2. Compare the test tachometer values and vehicle tachometer values under the following conditions:
        • Vehicle battery voltage is 13.5 V
        • Ambient temperature is 25°C (77°F)

          OK 

          TACHOMETER TESTING REFERENCE CHART

          Standard Tachometer Indication (rpm) Acceptable Range (rpm)
          Data in ( ) are for reference only
          700 630 to 770
          1,000 (900 to 1,100)
          2,000 (1,850 to 2,150)
          3,000 2,800 to 3,200
          4,000 (3,800 to 4,200)
          5,000 4,800 to 5,200
          6,000 (5,750 to 6,250)
          7,000 6,700 to 7,300
          8,000 7,700 to 8,300

          If the result is not as specified, the tachometer may have a malfunction.

  4. CHECK FUEL SENDER GAUGE ASSEMBLY 
    1. Disconnect the F9 gauge connector.
    2. Turn the ignition switch ON, and then check the position of the receiver gauge needle.
      Fig 2: Identifying F9 Gauge Connector Terminals
      G04224332Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Fuel receiver gauge indicates E 

    3. Connect terminals 2 and 3 of the wire harness side connector.
    4. Turn the ignition switch ON, and then check the position of the receiver gauge needle.

      OK: Fuel receiver gauge indicates F 

      If the result is not as specified, the combination meter may have a malfunction.

  5. CHECK FUEL LEVEL WARNING LIGHT 
    1. Disconnect the F9 pump and gauge connector.
    2. Turn the ignition switch ON, and then check that the fuel receiver gauge indicates E and that the fuel level warning light turns on.
      Fig 3: Identifying F9 Pump And Gauge Connector Terminals
      G04224333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Fuel level warning light turns on 

      If the result is not as specified, the combination meter may have a malfunction.

  6. CHECK ENGINE COOLANT TEMPERATURE RECEIVER GAUGE ASSEMBLY 
    1. Disconnect the E2 gauge connector.
    2. Turn the ignition switch ON, and check the position of the receiver gauge needle.
      Fig 4: Identifying E2 Gauge Connector Terminals
      G04224334Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Needle position is on (COOL). 

    3. Connect between terminals of the wire harness side connector, and then check the position of the receiver gauge needle.

      OK: Needle position is on (HOT). 

  7. CHECK LOW OIL PRESSURE WARNING LIGHT 
    1. Disconnect the E3 switch connector.
    2. Connect the E3-1 terminal of the wire harness side connector to the body ground.
    3. Turn the ignition switch ON, and then check that the low oil pressure warning light turns on.
      Fig 5: Identifying E3 Switch Connector Terminals
      G04224335Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Low oil pressure warning light turns on 

      If the result is not as specified, the combination meter may have a malfunction.

  8. CHECK BRAKE WARNING LIGHT 
  1. Check the parking brake warning light.
    1. Disconnect the P6 switch connector.
    2. Connect the P6-1 terminal of the wire harness side connector to the body ground.
    3. Turn the ignition switch ON, and then check that the warning light turns on.
      Fig 6: Identifying P6 Switch Connector Terminals
      G04224336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Warning light turns on. 

  2. Check the brake fluid level warning light.
    1. Disconnect the B2 switch connector.
    2. Connect the B2-1 and B2-2 terminals of the wire harness side connector.
    3. Turn the ignition switch ON, and then check that the warning light turns on.
      Fig 7: Identifying B2 Switch Connector Terminals
      G04224337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Warning light turns on. 

      If the result is not as specified, the combination meter may have a malfunction.

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