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 / ECT / Data List / Vehicle Speed.
6. Drive the vehicle.
7. Read the value displayed on the Techstream.

   OK

   Vehicle speeds displayed on tester and speedometer display are equal.

NG → See step   2 

OK → See step   6 

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
      I18-9 (+S) - Body ground	Engine switch on (IG)	Voltage generated intermittently

      TEXT IN ILLUSTRATION
      
      

      *a	Component with harness connected (Combination Meter Assembly)

      HINT: 

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

NG → See step   5 

OK: Go to next step 

1. Disconnect the combination meter assembly connector.
2. Disconnect the TCM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   I18-9 (+S) - E7-3 (SPD)	Always	Below 1 Ω

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER ASSEMBLY - TCM) 

OK → See step   4