Dtc P0500 Vehicle Speed Sensor A


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK OPERATION OF SPEEDOMETER

READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

CHECK HARNESS AND CONNECTOR

CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)

REPLACE ECM

CHECK SPEEDOMETER CIRCUIT

REPLACE COMBINATION METER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P0500 Vehicle Speed Sensor "A"


DESCRIPTION

Vehicles which are equipped with a manual transaxle 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 transaxle 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.

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System. Dtc P0500 Vehicle Speed Sensor A


P0500
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Drive the vehicle at 10 km/h (6.3 mph) or more
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.
  1. Open or short in speedometer circuit
  2. Speedometer assembly
  3. ECM
Drive the vehicle at 10 km/h (6.3 mph) or more
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.

Related Data List
DTC No.
Data List
P0500
Vehicle Speed

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System. Dtc P0500 Vehicle Speed Sensor A


INSPECTION PROCEDURE

NOTICE:
After replacing the ECM, the new ECM needs registration (LandCruiser RM0000012XK0ARX.html) and initialization (LandCruiser RM000000TIN08CX.html).
HINT:
Read freeze frame data using the intelligent tester. 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.
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:
    The vehicle speed sensor is operating normally if the speedometer reading is normal.
    OK:
    The vehicle speed sensor is operating normally.


NG
Go to step 7
OK


2.READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and start the engine.

  1. Turn the tester 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 tester.

    OK:
    Vehicle speed displayed on tester and speedometer display are equal.


OK
Go to step 10

NG
Go to step 3

3.CHECK HARNESS AND CONNECTOR
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System. Dtc P0500 Vehicle Speed Sensor A

  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
    		Ignition switch ON
    		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, Gdj150,155.1Kd-Ftv Engine Control.Ecd System. Dtc P0500 Vehicle Speed Sensor A

  1. Move the shift lever to neutral.

  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
    		Ignition switch ON
    		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 the wheel is turned slowly.
    Result
    Result
    		Proceed to
    OK
    		A
    NG
    		B


A
Go to step 6

B
Go to step 8

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):
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) - G58-30 (SPD)
    		Always
    		Below 1 Ω
    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) or G58-30 (SPD) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the combination meter assembly connector.

  1. Reconnect the ECM connector.



NG
Go to step 9
OK


6.REPLACE ECM

  1. Replace the ECM (LandCruiser RM0000013Z002CX.html).



NEXT
Go to step 10

7.CHECK SPEEDOMETER CIRCUIT

  1. Check the speedometer circuit (LandCruiser RM0000012GD0BAX.html).

    HINT:
    Inspect the brake actuator assembly and speed sensor.


NEXT
Go to step 10

8.REPLACE COMBINATION METER ASSEMBLY

  1. Replace the combination meter assembly (LandCruiser RM000003QKY01CX.html).



NEXT
Go to step 10

9.REPAIR OR REPLACE HARNESS OR CONNECTOR

  1. Repair or replace the harness or connector.


NEXT


10.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (LandCruiser RM000000PDK1DJX.html).

  1. Turn the ignition switch off.

  1. Start the engine.

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

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

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


NEXT

END