AUTOMATIC TRANSMISSION SYSTEM (for 1KD-FTV), Diagnostic DTC:P0500

DTC Code DTC Name
P0500 Vehicle Speed Sensor Malfunction

DESCRIPTION

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. The skid control ECU converts these wheel speed signals into a pulse signal and outputs it to the TCM via the combination meter. The TCM determines the vehicle speed based on the frequency of this pulse signal.

DTC Code DTC Detection Condition Trouble Area
P0500 While the vehicle is being driven, no vehicle speed sensor signal is transmitted to the TCM (2-trip detection logic).

  • Open or short in speed signal SPD1 circuit

  • Combination meter system

  • TCM

MONITOR DESCRIPTION

The TCM assumes that the vehicle is being driven when the indicated vehicle speed is more than 9 km/h (5.6 mph). If there is no speed signal from the combination meter despite this condition being met, the TCM interprets this as a malfunction in the speed signal circuit. The TCM then illuminates the MIL and stores the DTC.

WIRING DIAGRAM

A00O61CE04

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)


    1. Drive the vehicle and check whether the operation of the speedometer in the combination meter assembly is normal.

      Tech Tips


      • The vehicle speed sensor is operating normally if the speedometer reading is normal.

      • If the speedometer does not operate, check it by following the procedure described for a speedometer malfunction.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the intelligent tester on.

    5. Enter the following menus: Powertrain / ECT / Data List.

    6. Drive the vehicle.

    7. Read the value displayed on the tester.

      ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed

      Vehicle speed/

      Min.: 0 km/h (0 mph)

      Max.: 255 km/h (158 mph)

      		 Actual vehicle speed -
      OK
      Vehicle speed displayed on tester and speedometer display are equal.

    NG

    CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM) Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  2. CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)


    1. A00O34NE01
      Text in Illustration
      *a

      Component with harness connected

      (Combination Meter Assembly)

      Remove the combination meter assembly with the connector(s) still connected.

    2. Move the shift lever to N.

    3. Jack up the vehicle.

    4. Turn the ignition switch to ON.

    5. Check the signal waveform according to the condition(s) in the table below.

      Measurement Condition
      Terminal No. (Symbol) Tool Setting Condition
      G6-32 (+S) - Body ground 2 V/DIV., 20 msec./DIV. Vehicle speed 20 km/h (12 mph)
      OK
      The waveform is displayed as shown in the illustration.

    NG

    CHECK METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TCM)


    1. Disconnect the G6 combination meter assembly connector.

    2. Disconnect the G70 TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G6-32 (+S) - G70-25 (SPD1) Always Below 1 Ω
      G6-32 (+S) or G70-25 (SPD1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE TCM Click here