METER / GAUGE SYSTEM Speedometer Malfunction

DESCRIPTION

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

Tech Tips

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.

WIRING DIAGRAM

B006XYQE23
*1 Skid Control ECU (Brake Actuator Assembly)
*2 CAN Communication Line
*3 Combination Meter Assembly

CAUTION / NOTICE / HINT

Note


  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

  • Before starting the following inspection, inspect the speedometer and check that the tire size and air pressure are as specified.

    Tire size and air pressure: Click here

    Speedometer: Click here

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication DTCs are output.

      Click here

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check if vehicle stability control system DTCs are output.


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    A

  3. PERFORM ACTIVE TEST USING GTS


    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. Perform the Active Test according to the display on the GTS.


      Body Electrical > Combination Meter > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Speedometer Operation (0km/h,0MPH) Speedometer 0km/h (0mph) ON -
      Speedometer Operation (40km/h,40MPH) Speedometer 40 km/h (40 mph) ON

      The value displayed on the speedometer may deviate.

      Reference km/h*1:

      40 → 41.1 to 45.2

      Reference km/h*2:

      40 → 40.3 to 43.9

      Reference km/h*3:

      40 → 41.7 to 46.2
      Speedometer Operation (80km/h,80MPH) Speedometer 80 km/h (80 mph) ON

      The value displayed on the speedometer may deviate.

      Reference km/h*1:

      80 → 82.2 to 86.3

      Reference km/h*2:

      80 → 81.4 to 85.0

      Reference km/h*3:

      80 → 83.4 to 88.4
      Speedometer Operation (120km/h,120MPH) Speedometer 120 km/h (120 mph) ON

      The value displayed on the speedometer may deviate.

      Reference km/h*1:

      120 → 123.3 to 127.4

      Reference km/h*2:

      120 → 122.5 to 126.1

      Reference km/h*3:

      120 → 125.1 to 130.6
      Speedometer Operation (160km/h,160MPH) Speedometer 160 km/h (160 mph) ON

      The value displayed on the speedometer may deviate.

      Reference km/h*1:

      160 → 164.4 to 168.5

      Reference km/h*2:

      160 → 163.6 to 167.2

      Reference km/h*3:

      160 → 166.2 to 173.2
      Speedometer Operation (200km/h,200MPH) Speedometer 200 km/h (200 mph) ON

      The value displayed on the speedometer may deviate.

      Reference km/h*1:

      200 → 205.6 to 209.7

      Reference km/h*2:

      200 → 204.7 to 208.3

      Reference km/h*3:

      200 → 207.7 to 215.7
      Speedometer Operation (240km/h,240MPH) Speedometer 240 km/h (240 mph) ON

      The value displayed on the speedometer may deviate.

      Reference km/h*1:

      240 → 246.7 to 250.8

      Reference km/h*2:

      240 → 245.8 to 249.4

      Reference km/h*3:

      240 → 249.2 to 258.0

      • *1: for RHD, Multi-information Display (7 Inch Display) without Front Fog Light

      • *3: for RHD, Multi-information Display (4.2 Inch Display) without Front Fog Light

      • *3: for LHD, RHD with Front Fog Light


      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (0km/h,0MPH)

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (40km/h,40MPH)

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (80km/h,80MPH)

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (120km/h,120MPH)

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (160km/h,160MPH)

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (200km/h,200MPH)

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Speedometer Operation (240km/h,240MPH)
      OK
      Speedometer indication is normal.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) for RHD: Click here
    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) for LHD: Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here