CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM Transmission Control Switch Circuit

DESCRIPTION

After moving the shift lever to M, it is possible to switch the shift range between "1" (M1 range) and "7" (M7 range) using the transmission control switch. Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" lowers the shift range by one.

WIRING DIAGRAM

A01VJD7E02

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC.

    5. Read the DTCs using the tester.

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DTC CHART Click here

    A

  2. READ VALUE USING INTELLIGENT TESTER (SPORT MODE SELECTION SW)


    1. Enter the following menus: Powertrain / Engine and ECT / Data List.

    2. In accordance with the display on the tester, read the Data List.

      Engine and ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Sports Mode Selection SW

      Sport mode select switch status/

      OFF or ON

      OFF: Shift lever not in M, "+" or "-"

      ON: Shift lever position; M, "+" or "-"

      		 -
      Result
      Result Proceed to
      Data display is within Normal Condition range A
      Data display is not within Normal Condition range B

    B

    INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) Click here

    A

  3. READ VALUE USING INTELLIGENT TESTER (SPORT SHIFT UP SW / SPORT SHIFT DOWN SW)


    1. Enter the following menus: Powertrain / Engine and ECT / Data List.

    2. In accordance with the display on the tester, read the Data List.

      Engine and ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Sports Shift Up SW

      Sport shift up switch status/

      OFF or ON

      OFF: Shift lever not held in "+" (up shift)

      ON: Shift lever held in "+" (up shift)

      		 -
      Sports Shift Down SW

      Sport shift down switch status/

      OFF or ON

      OFF: Shift lever not held in "-" (down shift)

      ON: Shift lever held in "-" (down shift)

      		 -
      Result
      Result Proceed to
      Data display is within Normal Condition range A
      Data display is not within Normal Condition range B

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  4. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)


    1. A01VJF4E16
      Text in Illustration
      *a

      Component without harness connected

      (Shift Lock Control Unit Assembly (Transmission Control Switch))

      Disconnect the transmission control switch connector of the shift lock control unit assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      5 (SFTU) - 11 (E) Shift lever held in "+" (Up-shift) Below 1 Ω
      Shift lever in M 10 kΩ or higher
      4 (SFTD) - 11 (E) Shift lever held in "-" (Down-shift) Below 1 Ω
      Shift lever in M 10 kΩ or higher

    3. Reconnect the transmission control switch connector of the shift lock control unit assembly.


    NG

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

    OK

  5. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)


    1. A01VJPUE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-42 (SFTU) - Body ground Shift lever held in "+" (Up-shift) Below 1 Ω
      Shift lever in M 10 kΩ or higher
      A58-43 (SFTD) - Body ground Shift lever held in "-" (Down-shift) Below 1 Ω
      Shift lever in M 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  6. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  7. PERFORM INITIALIZATION


    1. Perform the initialization Click here.

    2. Check for DTCs again Click here.


    NEXT

    END

  8. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)


    1. A01VJF4E08
      Text in Illustration
      *a

      Component without harness connected

      (Shift Lock Control Unit Assembly (Transmission Control Switch))

      Disconnect the transmission control switch connector of the shift lock control unit assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      6 (IG) - 13 (S) Shift lever in M, "+" or "-" Below 1 Ω
      Shift lever in D 10 kΩ or higher

    NG

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

    OK

  9. CHECK HARNESS AND CONNECTOR (IG POWER SUPPLY)


    1. A01VL7GE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Shift Lock Control Unit Assembly (Transmission Control Switch))

      Turn the ignition switch to ON.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F25-6 (IG) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)


    1. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F25-13 (S) - A58-41 (S) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  11. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  12. PERFORM INITIALIZATION


    1. Perform the initialization Click here.

    2. Check for DTCs again Click here.


    NEXT

    END