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 signal is normal if the speedometer reading is normal.
   • If the speedometer does not operate, check it by following the procedure described for a speedometer malfunction.

NG → GO TO METER / GAUGE SYSTEM (SPEEDOMETER MALFUNCTION) 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed.
5. Drive the vehicle.
6. Read the value displayed on the Techstream.

   OK

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

NG → See step   3 

OK → See step   6 

1. Disconnect the combination meter assembly connector.
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

   Standard Resistance (Check for Short)

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

   HINT: 

   If the wire has a short, check the speed signal circuit in other systems related to the vehicle speed signal (e. g. tire pressure warning system, audio system, etc).

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (OTHER SYSTEMS RELATED TO SPEED SIGNAL) 

OK: Go to next step 

1. Disconnect the combination meter assembly connector.

   HINT: 

   Disconnect the ECU connectors on the other systems related to the speed signal (but the ECM connectors must be connected.)

   Fig 1: Identifying J34 Combination Meter Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the engine switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   J34-5 (+S) - Body ground	Engine switch on (IG)	4.5 to 5.5 V

4. Reconnect the combination meter assembly connector.

NG → See step   7 

OK: Go to next step 

1. Remove the combination meter assembly.
   Fig 2: Checking Combination Meter Assembly (SPD Signal Waveform)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the combination meter assembly connector.
3. Move the shift lever to neutral position.
4. Jack up the vehicle.
5. Turn the engine switch on (IG).
6. Check 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

   HINT: 

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

NG → See step   8 

OK → See step   7