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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Automatic Transmission - A750F) >> Automatic Transmission System >> DTC P0717: Input Speed Sensor Circuit No Signal >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Using the intelligent tester'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 the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
  4. Turn the ignition switch ON.
  5. Turn the intelligent tester ON.
  6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
  7. Follow the instructions on the tester and read the DATA LIST.
    DATA LIST DETAIL

    Item Measurement Item/Range (Display) Normal Condition Diagnostic Note
    SPD (NT) Input turbine speed/display: 50 r/min HINT:
    • Lock-up ON (after warming up engine): Input turbine speed (NT) equal to the engine speed.
    • Lock-up OFF (idling with shift lever on N): Input turbine speed (NT) is nearly equal to engine speed.
    -

    HINT:

    • SPD (NT) is always 0 while driving: Open or short in the sensor or circuit.
    • SPD (NT) 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 NT installation.

      OK: Installation bolt is tightened properly and there is no clearance between the sensor and transmission case. 

    NG: SECURELY INSTALL SENSOR OR REPLACE SENSOR 

    Fig 1: Identifying Correct Installation Of Speed Sensor
    G04436461Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO NEXT STEP 

  2. INSPECT SPEED SENSOR NT 
    1. Disconnect the T17 sensor connector from the transmission.
    2. Measure the resistance of the sensor.

      Standard resistance 

      TERMINALS RESISTANCE SPECIFICATION

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

    NG: REPLACE SPEED SENSOR NT 

    Fig 2: Identifying Connector Terminals
    G04436462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO NEXT STEP 

  3. CHECK WIRE HARNESS (SPEED SENSOR - ECM) 
    1. Check wire harness (see ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE ECM