Dtc P0500 Vehicle Speed Sensor


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK OPERATION OF SPEEDOMETER

READ VALUE USING GTS (VEHICLE SPEED)

CHECK COMBINATION METER ASSEMBLY (+S VOLTAGE)

CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)

DTC P0500 Vehicle Speed Sensor


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 4-pulse signal and outputs it to the ECM via the combination meter assembly. The ECM determines the vehicle speed based on the frequency of this pulse signal.

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor


DTC No.
DTC Detection Condition
Trouble Area
P0500
While the vehicle is being driven, no vehicle speed sensor signal is transmitted to the ECM (2 trip detection logic).
  1. Open or short in speed signal circuit
  2. Combination meter assembly
  3. ECM

WIRING DIAGRAM

  1. for Automatic Transmission

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor

  1. for Manual Transmission

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor


INSPECTION PROCEDURE

HINT:
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, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
1.CHECK OPERATION OF SPEEDOMETER

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

    HINT:
    1. The vehicle speed sensor is operating normally if the speedometer reading is normal.
    2. If the speedometer does not operate, check it by following the procedure described in Speedometer Malfunction (LandCruiser RM0000012GD0BAX.html).


NG
GO TO MALFUNCTION IN SPEEDOMETER (LandCruiser RM0000012GD0BAX.html)
OK


2.READ VALUE USING GTS (VEHICLE SPEED)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

  1. Drive the vehicle.

  1. Read the value displayed on the GTS.

    OK:
    Vehicle speeds displayed on GTS and speedometer display are equal.


NG
Go to step 3
OK

CHECK FOR INTERMITTENT PROBLEMS (LandCruiser RM000000PDQ18TX.html)

3.CHECK COMBINATION METER ASSEMBLY (+S VOLTAGE)
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor

  1. Disconnect the combination meter assembly connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G6-32 (+S) - Body ground
    		Engine switch on (IG)
    		4.5 to 5.5 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to combination meter assembly)

  1. Reconnect the combination meter assembly connector.



NG
Go to step 5
OK


4.CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor

  1. Move the shift lever to N.

  1. Jack up the vehicle.

  1. Check the voltage between the terminal of the combination meter assembly and the body ground while a wheel is turned slowly.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G6-32 (+S) - Body ground
    		Engine switch on (IG)
    		Voltage generated intermittently
    Text in Illustration
    *a
    		Component with harness connected
    (combination meter assembly)
    HINT:
    The output voltage should fluctuate up and down, similarly to the diagram, when a wheel is turned slowly.


NG
REPLACE COMBINATION METER ASSEMBLY (LandCruiser RM000003QKY01CX.html)
OK


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

  1. Disconnect the combination meter assembly connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    for Automatic Transmission
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) - G56-12 (SPD)
    		Always
    		Below 1 Ω
    for Manual Transmission
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) - G55-18 (SPD)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Open):
    for Automatic Transmission
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) or G56-12 (SPD) - Body ground
    		Always
    		10 kΩ or higher
    for Manual Transmission
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) or G55-18 (SPD) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the combination meter assembly connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (LandCruiser RM00000329203TX.html)