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

A01XHVEE02
*a from Skid Control ECU
*b No. 3 Junction Block
*c No. 4 Junction Block
*d Combination Meter Assembly

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)


    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: Powertrain / ECT / Data List.

    5. Drive the vehicle.

    6. 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.

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. CHECK COMBINATION METER SYSTEM


    1. Inspect the circuits that send vehicle speed signals to this system in the meter system Click here.

    2. During inspection for the meter section, if there is an instruction that indicates to go back to inspections for each system, proceed to the next step.


    NEXT

  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

    OK

    REPLACE TCM Click here

    NG

  4. CHECK HARNESS AND CONNECTOR (NO. 4 JUNCTION BLOCK - TCM)


    1. Disconnect the 4B No. 4 junction block 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
      4B-1 - G70-25 (SPD1) Always Below 1 Ω

    OK

    REPAIR OR REPLACE NO. 4 JUNCTION BLOCK

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR