Dtc P0500 Vehicle Speed Sensor Malfunction

Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
A750F Automatic Transmission Transaxle. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (VEHICLE SPEED)

CHECK COMBINATION METER SYSTEM

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TCM)

CHECK HARNESS AND CONNECTOR (JUNCTION CONNECTOR - TCM)

DTC 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).
  1. Open or short in speed signal SPD1 circuit
  2. Combination meter system
  3. 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


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A750F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe). Dtc P0500 Vehicle Speed Sensor Malfunction


INSPECTION PROCEDURE

1.READ VALUE USING GTS (VEHICLE SPEED)

  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 for a speedometer malfunction.

  1. Connect the GTS to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

  1. Enter the following menus: Powertrain / ECT / Data List.

  1. Drive the vehicle.

  1. Read the value displayed on the GTS.

    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 the GTS and speedometer display are equal.


NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (HILUX_TGN26 RM000004QR7005X.html)

2.CHECK COMBINATION METER SYSTEM

  1. Inspect the circuits that send vehicle speed signals to this system in the meter system (HILUX_TGN26 RM000002UD7086X.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 (COMBINATION METER ASSEMBLY - TCM)

  1. Disconnect the combination meter assembly connector.

  1. Disconnect the TCM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G19-6 (+S) - G41-25 (SPD1)
    		Always
    		Below 1 Ω


NG
Go to step 4
OK

REPLACE TCM (HILUX_TGN26 RM0000048F3005X.html)

4.CHECK HARNESS AND CONNECTOR (JUNCTION CONNECTOR - TCM)

  1. Disconnect the junction connector.

  1. Disconnect the TCM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2Q-10 - G41-25 (SPD1)
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPAIR OR REPLACE JUNCTION CONNECTOR