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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 224 (Automatic Transmission - U151E) >> Automatic Transaxle System >> DTC P0793 Intermediate Shaft Speed Sensor "A" >> 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.

    ECM: 

    DATA LIST - ECM

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    SPD (NC) Counter gear speed/ Min.: 0 rpm
    Max.: 12,750 rpm
    3rd gear when shift lever is on D (after warming up the engine); Intermediate shaft speed (NC) becomes close to the engine speed Data is displayed in increments of 50 rpm

HINT:

  1. INSPECT SPEED SENSOR (INSTALLATION) 
    1. Check the speed sensor NC installation.

      OK: 

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

      Fig 1: Identifying Speed Sensor Installation Clearance
      G05289551Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SPEED SENSOR NC 

    OK: Go to next step 

  2. INSPECT SPEED SENSOR NC 
    1. Disconnect the B24 sensor connector from the transaxle.
    2. Measure the resistance of the sensor.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 560 to 680 Ω
      Fig 2: Inspecting Speed Sensor NC
      G05289552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SPEED SENSOR NC 

    OK: Go to next step 

  3. CHECK WIRE HARNESS (SPEED SENSOR - ECM) 
    1. Disconnect the B30 ECM connector.
    2. Fig 3: Identifying B30 ECM Connector
      G05583492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      B30-4 (NC+) - B30-3 (NC-) 560 to 680 Ω
      B30-4 (NC+) - Body ground 10 kΩ or higher
      B30-3 (NC-) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE ECM