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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 230 (Automatic Transmission - U241E) >> Automatic Transaxle System >> DTC P0717 Input Speed Sensor Circuit No Signal >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Using Techstream's Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.

NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
  1. Warm up the engine.
  2. Turn the ignition switch OFF.
  3. Connect Techstream to the DLC3.
  4. Turn the ignition switch ON and turn the tester ON.
  5. Enter the following menus: Powertrain / Engine and ECT / Data List.
  6. Follow the instructions on the tester and read the Data List.
    DATA LIST

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    SPD (NT) Input turbine speed/ Min.: 0 rpm
    Max.: 12,750 rpm
    • Lock-up ON (after warming up engine):

      Input turbine speed (NT) equal to engine speed.

    • Lock-up OFF (idling with shift lever on N):

      Input turbine speed (NT) is nearly equal to engine speed.

    		 Data is displayed in increments of 50 rpm

    HINT:

    • SPD (NT) is always 0 rpm while driving:

      Open or short in the sensor or circuit.

    • SPD (NT) is always more than 0 rpm 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 NT installation.

      OK: 

      Installation bolt is tightened properly and there is no clearance between the sensor and transaxle case. 

      Fig 1: Identifying Clearance Between Sensor And Transaxle Case
      G05584100Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: SECURELY INSTALL SENSOR OR REPLACE SPEED SENSOR 

    OK: go to next step 

  2. INSPECT SPEED SENSOR NT 
    1. Disconnect the B28 sensor connector from the transaxle.
      2. Fig 2: Identifying Terminals Of Speed Sensor (NT) B28 Connector
      G05584101Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the sensor.

      Standard resistance 

      TERMINALS RESISTANCE REFERENCE

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

    NG: REPLACE SPEED SENSOR NT 

    OK: go to next step 

  3. CHECK WIRE HARNESS (SPEED SENSOR - ECM) 
    1. Disconnect the B30 ECM connector.
      Fig 3: Identifying Terminals Of B30 ECM Connector
      G05584102Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TERMINALS RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      B30-125 (NT+) - B30-124 (NT-) 20°C (68°F) 560 to 680 Ω
      B30-125 (NT+) - Body ground 20°C (68°F) 10 kΩ or higher
      B30-124 (NT-) - Body ground 20°C (68°F) 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE ECM 

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