Dtc P0500 Vehicle Speed Sensor Malfunction


DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

CHECK COMBINATION METER SYSTEM

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TCM)

CHECK HARNESS AND CONNECTOR (NO. 4 JUNCTION BLOCK - 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


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.A750F Automatic Transmission Transaxle.Automatic Transmission System (For 1Kd-Ftv). Dtc P0500 Vehicle Speed Sensor Malfunction


INSPECTION PROCEDURE

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


NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (LandCruiser RM000003YMJ00XX.html)

2.CHECK COMBINATION METER SYSTEM

  1. Inspect the circuits that send vehicle speed signals to this system in the meter system (LandCruiser RM000002UD70E2X.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 G6 combination meter assembly connector.

  1. Disconnect the G70 TCM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G6-32 (+S) - G70-25 (SPD1)
    		Always
    		Below 1 Ω


NG
Go to step 4
OK

REPLACE TCM (LandCruiser RM0000048F300JX.html)

4.CHECK HARNESS AND CONNECTOR (NO. 4 JUNCTION BLOCK - TCM)

  1. Disconnect the 4B No. 4 junction block connector.

  1. Disconnect the G70 TCM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    4B-1 - G70-25 (SPD1)
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPAIR OR REPLACE NO. 4 JUNCTION BLOCK