Click here

METER / GAUGE SYSTEM Speedometer Malfunction

Click here
Click here
DTC Code DTC Name
  Speedometer Malfunction
Click here

DESCRIPTION

The meter CPU receives vehicle speed signals from the skid control ECU via the CAN communication system (CAN V1 Bus). 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 the pulses of the voltage.

Tip:

  • Factors that affect the indicated vehicle speed include tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using a speedometer tester (calibrated chassis dynamometer). For details about testing and the margin of error, see the reference chart (Click here).

  • If the vehicle speed sensor circuit has a malfunction, the skid control ECU stores the DTCs. Troubleshoot the Vehicle Stability Control System.


Table 1. *1 Skid Control ECU *2 CAN Communication Line *3 Combination Meter Assembly
Click here

WIRING DIAGRAM

Click here

CAUTION / NOTICE / HINT

CAUTION:

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

Tip:

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

Click here

PROCEDURE


  1. Click here

    CHECK CAN COMMUNICATION SYSTEM


    1. Check if a CAN communication DTC is output (Click here).

      Table 2. Result
      Result Proceed to
      CAN communication DTC is not output A
      CAN communication DTC is output B

  2. Click here

    PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SPEED METER OPERATION)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

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

    5. According to the display on the intelligent tester, perform the Active Test.

      Table 3. Combination Meter
      Tester Display Test Part Control Range Diagnostic Note
      Speed Meter Operation Speedometer 0, 40, 80, 120, 160, 200, 240 (km/h) Vehicle is stopped and the engine idling
      OK
      Speedometer indication is normal.

  3. Click here

    READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED METER)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Combination Meter / Data List.

    5. According to the display on the intelligent tester, read the Data List.

      Table 4. Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed Meter

      Vehicle speed/

      Min.: 0 (0)

      Max.: 255 (158)

      		 Approximately same as actual vehicle speed (When vehicle is being driven) Unit: km/h (mph)
      OK
      Vehicle speed displayed on the intelligent tester is almost the same as the speedometer indication.

  4. Click here

    CHECK BRAKE CONTROL SYSTEM


    1. Check if a brake control DTC is output.


      Table 5. Result
      Result Proceed to
      Vehicle stability control DTC is not output A
      Brake control DTC is output (w/o VSC) B
      Brake control DTC is output (w/ VSC (for TMC Made)) C
      Brake control DTC is output (w/ VSC (for TMMF Made)) D