SFI SYSTEM, Diagnostic DTC:P0500

DTC Code DTC Name
P0500 Vehicle Speed Sensor

DESCRIPTION

Vehicles, which are equipped with ABS (Anti-lock Brake System), detect the vehicle speed using the brake actuator assembly (skid control ECU) and wheel speed sensor. The wheel speed sensor monitors the wheel rotation speed and sends a signal to the brake actuator assembly (skid control ECU). The brake actuator assembly (skid control ECU) converts the wheel speed signal into a 4-pulse signal and transmits it to the ECM. The ECM determines the vehicle speed based on the frequency of the pulse signal.

A331659E01

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0500

Vehicle Speed Sensor

for SFI system:

While vehicle is driven, no vehicle speed signal to ECM (3 trip detection logic).

for speed limiter system:

The vehicle speed signal from the vehicle speed sensor stops for 0.14 sec. or more while the cruise control system is controlling vehicle speed (1 trip detection logic).

  • Open or short in speed signal circuit

  • Combination meter assembly

  • Brake actuator assembly (Skid control ECU)

  • ECM

for SFI system:

Comes on

for speed limiter system:

Does not come on

DTC stored

WIRING DIAGRAM

A325760E01

CONFIRMATION DRIVING PATTERN

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

DTC P0500 is detected when the vehicle is driven for 2 seconds or more at an engine speed of 1000 rpm or higher.

CAUTION / NOTICE / HINT

Note:

After replacing the ECM, perform idle learning.

Click here

Tip:

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, 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 ignition switch to ON and turn the GTS on.

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

      Powertrain > Engine and ECT > Data List

      Tester Display

      Vehicle Speed

    4. Drive the vehicle.

    5. 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 (BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) - COMBINATION METER ASSEMBLY - ECM)

    1. Disconnect the brake actuator assembly (skid control ECU) connector.

    2. Disconnect the combination meter assembly connector.

    3. Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A39-2 (SP1) - A34-41 (SPD)

      Always

      Below 1 Ω

      A39-2 (SP1), E12-21 (SI) or A34-41 (SPD) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR 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 hereClick here

    Result

    Proceed to

    NEXT
    NEXT

  4. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

    5. Turn the ignition switch off and wait for at least 30 seconds.

    6. Start the engine.

    7. Turn the GTS on.

    8. Drive the vehicle for 2 seconds or more at an engine speed of 1000 rpm or or higher.

    9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    10. Read the DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Tip:

      If no DTCs (no pending DTCs) are output to the GTS, the repair has been successfully completed.

    Result

    Proceed to

    NEXT
    NEXT

    END