ECD SYSTEM, Diagnostic DTC:P0500

DTC Code DTC Name
P0500 Vehicle Speed Sensor

DESCRIPTION

Vehicles which are equipped with a manual transmission detect the vehicle speed using the speed sensor. The speed sensor transmits a 4-pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. The 4-pulse signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter. The signal is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of the pulse signal.

B003OJ4E04
*a 4-Pulse Signal
*b Speed Sensor
*c Combination Meter
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0500 Vehicle Speed Sensor

  • Conditions (a), (b) and (c) are met for 8 seconds or more (2 trip detection logic):

    (a) Engine coolant temperature is higher than 70°C (158°F).

    (b) Injection volume is 19 mm3/st or more.

    (c) No speed signal is input to the ECM.

  • Conditions (a) and (b) are met for 5 seconds or more (2 trip detection logic):

    (a) The fuel-cut operation is being performed.

    (b) No speed signal is input to the ECM.

  • Open or short in speedometer circuit

  • Speedometer assembly

  • ECM

 Comes on DTC stored
Related Data List
DTC No. Data List
P0500 Vehicle Speed

CONFIRMATION DRIVING PATTERN

P0500
DTC Detection Drive Pattern Drive the vehicle at 10 km/h (6.3 mph) or more

WIRING DIAGRAM

B003LU3E01
*1 Combination Meter

CAUTION / NOTICE / HINT

Note

After replacing the ECM, the new ECM needs registration (See page ) and initialization Click here.

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. READ VALUE USING GTS (VEHICLE SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Vehicle Speed.


      Powertrain > Engine and ECT > Data List
      Tester Display
      Vehicle Speed

    5. Drive the vehicle.

    6. Read the value displayed on the GTS.

      Result
      Result Proceed to
      Values displayed on GTS and speedometer display not equal A
      Values displayed on GTS and speedometer display equal B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)


    1. Disconnect the combination meter assembly connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G8-19 (+S) - G140-17 (SPD) Always Below 1 Ω
      G8-19 (+S) or G140-17 (SPD) - Body ground and other terminals Always 10 kΩ or higher

    4. Reconnect the combination meter assembly connector.

    5. Reconnect the ECM connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - JUNCTION CONNECTOR)

    OK

  3. CHECK COMBINATION METER SYSTEM


    1. Check the circuits that send vehicle speed signals to this system in the combination meter system.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    3. Turn the ignition switch off.

    4. Start the engine.

    5. Drive the vehicle at 10 km/h (6.3 mph) or more.

    6. Enter the following menus: Powertrain / Engine / Trouble Codes.


      Powertrain > Engine > Trouble Codes

    7. Confirm that the pending DTC is not output again.

      Result
      Proceed to
      NEXT

    NEXT

    END