METER / GAUGE SYSTEM Speedometer Malfunction

DTC Code DTC Name
Speedometer Malfunction

DESCRIPTION

The combination meter assembly receives vehicle speed signals from the skid control ECU via the CAN communication system. The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. The skid control ECU supplies power to the vehicle speed sensor. The skid control ECU detects vehicle speed signals based on pulses of the voltage.

Tip:

  • Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using the GTS. For details about testing and the margin of error, see the reference chart.

    Click hereClick here

  • If the vehicle speed sensor circuit has a malfunction, the skid control ECU stores DTCs. Troubleshoot the vehicle stability control system or anti-lock brake system.

    Vehicle stability control system:Click here

    Anti-lock brake system (for Type A):Click here

    Anti-lock brake system (for Type B):Click here

WIRING DIAGRAM

E143765E87

CAUTION / NOTICE / HINT

Note:

If the vehicle speed is outside the allowable range when tested, perform the on-vehicle inspection.

Click hereClick here

Tip:

Before starting the following inspection, check tire size and tire air pressure.

PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if CAN communication DTCs are output.

      Click hereClick hereClick here

    Result

    Result

    Proceed to

    CAN communication DTCs are not output.

    A

    CAN communication DTCs are output.

    B
    B

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    A

  2. PERFORM ACTIVE TEST USING GTS (SPEED METER OPERATION)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Active Test.

    5. Check the operation by referring to the table below.

      Body Electrical > Combination Meter > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Speed Meter Operation

      Speedometer

      • OFF, 0, 40, 80, 120, 160, 200, 240 km/h

      • OFF, 0, 40, 80, 120, 160 mph

      -

      Body Electrical > Combination Meter > Active Test

      Tester Display

      Speed Meter Operation

      OK

      Speedometer indication is normal.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE COMBINATION METER ASSEMBLY

    for Hatchback, Wagon:Click here

    for Sedan:Click here

    OK

  3. CHECK FOR DTC

    1. Check if vehicle stability control system or anti-lock brake system DTCs are output.

      Vehicle stability control system:Click hereClick here

      Anti-lock brake system (for Type A):Click here

      Anti-lock brake system (for Type B):Click here

      Result

      Result

      Proceed to

      DTCs are not output.

      A

      DTC are output (w/ VSC).

      B

      DTC are output (w/o VSC)

      C
    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM

    Type A:Click here

    C

    GO TO ANTI-LOCK BRAKE SYSTEM

    Type A:Click here

    Type B:Click here

    A

  4. READ VALUE USING GTS (VEHICLE SPEED, VEHICLE SPEED METER)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus:

      1. for ABS/VSC/TRC: Chassis / ABS/VSC/TRC / Data List.

      2. for Combination Meter: Body Electrical / Combination Meter / Data List.

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

      Chassis > ABS/VSC/TRC > Data List

      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

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Vehicle Speed

      Body Electrical > Combination Meter > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Vehicle Speed Meter

      Vehicle speed

      Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

      Almost the same as actual vehicle speed

      -

      Body Electrical > Combination Meter > Data List

      Tester Display

      Vehicle Speed Meter

    Result

    Result

    Proceed to

    The data list values of the ECUs match.

    A

    The data list values of the ECUs do not match.

    B
    Tip:

    • When the Data List values of the ECUs match, an internal malfunction of the combination meter assembly is suspected.

    • When the Data List values of the ECUs do not match, a signal output error of the skid control ECU or an internal malfunction of the combination meter assembly is suspected.

    A

    REPLACE COMBINATION METER ASSEMBLY

    for Hatchback, Wagon:Click here

    for Sedan:Click here

    B

  5. REPLACE COMBINATION METER ASSEMBLY

    1. Replace the combination meter assembly with a new or known good one.

      for Hatchback, Wagon:Click here

      for Sedan:Click here

      OK

      The operation of the speedometer returns to normal.

    Result

    Proceed to

    OK

    NG
    OK

    END

    NG

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

    Click hereClick here