TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM Clutch Switch Circuit

DESCRIPTION

While depressing the clutch pedal, the clutch start switch assembly sends a signal to terminal MTN of the 4 wheel drive control ECU. While the signal is input, switching between H4 and L4 is possible.

WIRING DIAGRAM

B003PWXE01

PROCEDURE


  1. READ VALUE USING GTS (CLUTCH START SWITCH)


    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the GTS on.

    4. Turn the ignition switch to ON.

    5. Enter the following menus: Powertrain / Four Wheel Drive / Data List.

    6. According to the display on the GTS, read the Data List.


      Powertrain > Four Wheel Drive > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Clutch SW Clutch start switch status ON or OFF

      ON: Clutch pedal depressed

      OFF: Clutch pedal released

      Used only for vehicles with a manual transmission.

      Displays OFF for vehicles with an automatic transmission.

      Powertrain > Four Wheel Drive > Data List
      Tester Display
      Clutch SW
      OK
      The display changes according to the clutch pedal operation.
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. CHECK ECD SYSTEM


    1. Check that the ECD system operates normally.

      Click here

      OK
      ECD system operates normally.
      Result
      Proceed to
      OK
      NG

    NG

    CHECK ECD SYSTEM Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - CLUTCH START SWITCH ASSEMBLY)


    1. Disconnect the C60 4 wheel drive control ECU connector.

    2. Disconnect the B2 clutch start switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C60-18 (MTN) - B2-2 Always Below 1 Ω
      C60-18 (MTN) or B2-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR