DTC P0500: Vehicle Speed Sensor "A": Procedure

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.
   • If the speedometer does not operate, check it by following the procedure described for a speedometer malfunction.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG).
4. Turn the Techstream on.
5. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed.
6. Drive the vehicle.
7. Read the value displayed on the Techstream.

   OK

   Vehicle speeds displayed on the Techstream and speedometer display are equal.

NG → See step   2 

OK → See step   7 

1. Inspect the combination meter assembly using an oscilloscope.
   Fig 1: Checking Combination Meter Assembly (SPD Signal & Waveform)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Move the shift lever to N.
   2. Jack up the vehicle.
   3. Turn the engine switch on (IG).
   4. Measure the voltage between the terminal of the combination meter assembly and the body ground while the wheel is turned slowly.

      Standard Voltage

      Tester Connection	Switch Condition	Specified Condition
      J34-5 (+S) - Body ground	Engine switch on (IG)	Voltage generated intermittently

      TEXT IN ILLUSTRATION
      
      

      *1	Component with harness connected (Combination Meter Assembly)
      *2	Turn Wheel

      HINT: 

      The output voltage should fluctuate up and down, similarly to the diagram, when the wheel is turned slowly.

NG → See step   4 

OK: Go to next step 

1. Disconnect the combination meter assembly connector.
   Fig 2: Checking Harness And Connector (Combination Meter Assembly - ECM)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   J34-5 (+S) - A5-22 (SPD)	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1

   Front view of wire harness connector (to Combination Meter Assembly)

   *2

   Front view of wire harness connector (to ECM)

4. Reconnect the combination meter assembly connector.
5. Reconnect the ECM connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5 

1. Disconnect the combination meter assembly connector.
   Fig 3: Checking Harness And Connector (Combination Meter Assembly - ECM)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   J34-5 (+S) or A5-22 (SPD) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1

   Front view of wire harness connector (to Combination Meter Assembly)

   *2

   Front view of wire harness connector (to ECM)

4. Reconnect the combination meter assembly connector.
5. Reconnect the ECM connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6