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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SPEEDOMETER 
    1. Drive the vehicle and check if the speedometer in the combination meter functions normally.

      OK: Actual vehicle speed and the speed indicated on the speedometer are the same. 

      HINT:

      The vehicle speed sensor is functioning normally when the indicated speed on the speedometer is accurate.

    NG:  GO TO COMBINATION METER SYSTEM

    OK: Go to Next Step 

  2. INSPECT MULTI-DISPLAY 
    1. Disconnect the multi-display connector E25.
    2. Measure voltage.
      1. Jack up either one of the drive wheels.
      2. Move the shift lever to the neutral position.
      3. Turn the ignition switch on (IG).
        Fig 1: Disconnecting Multi-Display Connector E25
        G05006450Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Measure the voltage between terminal SPD of the multi-display and body ground when the drive wheels are turned slowly.

        OK: Voltage pulses as shown in the illustration. 

    OK : REPLACE MULTI-DISPLAY 

    Fig 2: Identifying Voltage Pulses
    G05407989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER - MULTI-DISPLAY) 
    1. Disconnect the multi-display connector E25 and combination meter connector E2.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      SPD - E2-15 Ignition switch OFF Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 3: Checking Harness And Connector (Combination Meter - Multi-Display)
    G05006452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - MULTI-DISPLAY) 
    1. Disconnect the multi-display connector E25 and combination meter connector E2.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      SPD - Body ground Ignition switch OFF 10 kΩ or higher

      HINT:

      If the resistance between terminal SPD and body ground is less than 10 kΩ, there may be a short in a wire harness, connector, or ECU.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU 

    Fig 4: Checking Harness And Connector (Combination Meter - Multi-Display)
    G05006452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : REPLACE COMBINATION METER 

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