Dtc P0500 Vehicle Speed Sensor Malfunction

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
1Gr-Fe Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

MONITOR DESCRIPTION

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

CHECK COMBINATION METER SYSTEM

CHECK HARNESS AND CONNECTOR (ECM - COMBINATION METER ASSEMBLY)

DTC P0500 Vehicle Speed Sensor Malfunction


DESCRIPTION

The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter assembly, it is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of these pulse signals.

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor Malfunction


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

MONITOR DESCRIPTION

The ECM assumes that the vehicle is being driven when the park/neutral position switch is OFF while the vehicle speed signal from the transmission indicates a speed of 9 km/h (6 mph) or more. If there is no vehicle speed signal from the combination meter for 5 seconds when the vehicle is being driven, the ECM determines this to be a malfunction of the vehicle speed sensor. The ECM then illuminates the MIL and stores the DTC.

CONFIRMATION DRIVING PATTERN


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor Malfunction

  1. Connect the intelligent tester to the DLC3.
  2. Turn the ignition switch to ON and turn the tester on.
  3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
  4. Turn the ignition switch off and wait for at least 30 seconds.
  5. Turn the ignition switch to ON and turn the tester on [A].
  6. Start the engine.
  7. Drive the vehicle at 24 km/h (15 mph) or more for a total of 30 seconds or more [B].
    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.
  8. Stop the vehicle.
  9. Enter the following menus: Powertrain / Engine and ECT / DTC [C].
  10. Read the pending DTCs.
    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P0500.
  13. Check the DTC judgment result.

    Tester Display
    		Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    N/A
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
    HINT:
    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System. Dtc P0500 Vehicle Speed Sensor Malfunction


INSPECTION PROCEDURE

HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is 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.READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the intelligent tester on.

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

  1. Drive the vehicle.

  1. Read the value displayed on the intelligent tester.

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


NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (HILUX_TGN26 RM000000PDQ0YKX.html)

2.CHECK COMBINATION METER SYSTEM

  1. Inspect the circuits that send vehicle speed signals to this system in the meter system (HILUX_TGN26 RM000002UD709OX.html).

  1. 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 (ECM - COMBINATION METER ASSEMBLY)

  1. Disconnect the ECM connector.

  1. Disconnect the combination meter assembly connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    G19-6 (+S) - G154-8 (SPD)
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (HILUX_TGN26 RM000000VW202SX.html)