Inspection Procedure

HINT:

According to the DATA LIST displayed by the OBD II scan tool or hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one method to shorten labor time.

1. Warm up the engine.
2. Turn the ignition switch off.
3. Connect the OBD II scan tool or hand-held tester to the DLC3.
4. Turn the ignition switch to the ON position.
5. Push the "ON" button of the OBD II scan tool or the hand-held tester.
6. When you use hand-held tester:

   Select the item "DIAGNOSIS/ENHANCED OBD II/DATA LIST".

7. According to the display on tester, read the "DATA LIST".
   Fig 1: Item Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

• SPD (NC) is always 0 while driving: Open or short in the sensor or circuit.
• SPD (NC) is always more than 0 and less than 300 RPM while driving the vehicle at 50 km/h (31 mph) or more:

  Sensor trouble, improper installation, or intermittent connection trouble of the circuit.

1. INSPECT SPEED SENSOR INSTALLATION 
   1. Check the speed sensor installation.

      OK: The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case. 

      Fig 2: Inspecting Speed Sensor Installation

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE SPEED SENSOR (NC) 
   2. OK: GO TO NEXT STEP. 
2. INSPECT SPEED SENSOR (NC) 
   1. Disconnect the speed sensor connector from the transaxle.
   2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TOYOTA made: 

      SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition 20°C (68°F)
      1 - 2	500 to 620Ω

      Fig 3: Inspecting Speed Sensor (NC)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      AISIN made: 

      SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition 20°C (68°F)
      1 - 2	560 to 680Ω

   1. NG: REPLACE SPEED SENSOR (NC) 
   2. OK: GO TO NEXT STEP. 
3. CHECK HARNESS AND CONNECTOR (SPEED SENSOR - ECM) 
   1. Connect the speed sensor connector.
   2. Disconnect the ECM connector.
   3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TOYOTA made: 

      SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition 20°C (68°F)
      E8 - 26 (NC+) - E8 - 34 (NC-)	500 to 620Ω

      Fig 4: Tester Specification

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      AISIN made: 

      SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition 20°C (68°F)
      E8-26 (NC+) - E8 - 34 (NC-)	560 to 680Ω

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

      Standard (Check for short): 

      Fig 5: Checking Harness And Connector (Speed Sensor - ECM)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
   2. OK: REPLACE ECM (See  REPLACEMENT  )