Dtc P0500 Vehicle Speed Sensor Malfunction

Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
A340F Automatic Transmission Transaxle. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

CHECK COMBINATION METER ASSEMBLY (SPD1 SIGNAL WAVEFORM)

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TCM)

DTC P0500 Vehicle Speed Sensor Malfunction


DESCRIPTION

The vehicle speed sensor (SPD1) 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, it is then transmitted to the TCM. The TCM determines the vehicle speed based on the frequency of these pulse signals.

DTC Code
DTC Detection Condition
Trouble Area
P0500
All conditions below are detected 500 times or more continuously (2-trip detection logic):
(a) No signal from vehicle speed sensor (SPD1) is input to TCM while 48 pulses of speed sensor (SP2) signal are sent
(b) Vehicle speed is 9 km/h (6 mph) or more for at least 4 seconds
(c) PNP switch is off (shift lever not in P or N)
  1. Open or short in vehicle speed sensor (SPD1) circuit
  2. Vehicle speed sensor (SPD1)
  3. Combination meter assembly
  4. TCM

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A340F Automatic Transmission Transaxle.Automatic Transmission 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, 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 / ECT / Data List.

  1. Drive the vehicle.

  1. Read the value displayed on the tester.

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


NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (HILUX_TGN26 RM000004QR7002X.html)

2.CHECK COMBINATION METER ASSEMBLY (SPD1 SIGNAL WAVEFORM)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A340F Automatic Transmission Transaxle.Automatic Transmission System. Dtc P0500 Vehicle Speed Sensor Malfunction

  1. Remove the combination meter assembly with the connector(s) still connected.

  1. Move the shift lever to N.

  1. Jack up the vehicle.

  1. Turn the ignition switch to ON.

  1. Check the signal waveform according to the condition(s) in the table below.

    Measurement Condition:
    Terminal No. (Symbol)
    		Tool Setting
    		Condition
    G19-6 (+S) - Body ground
    		5 V/DIV., 20 msec./DIV.
    		Vehicle speed 20 km/h (12 mph)
    OK:
    The waveform is displayed as shown in the illustration.
    Text in Illustration
    *a
    		Component with harness connected
    (Combination Meter Assembly)


NG
GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT) (HILUX_TGN26 RM000002UD705SX.html)
OK


3.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TCM)

  1. Disconnect the G19 combination meter assembly connector.

  1. Disconnect the G41 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
    G19-6 (+S) or G41-25 (SPD1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TCM (HILUX_TGN26 RM000004ROZ00CX.html)