CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM Transmission Control Switch Circuit

DESCRIPTION

After moving the shift lever to M, it is possible to change the shift range between M1 and M8 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

B005BCZE32

CAUTION / NOTICE / HINT

Note


  • Perform initialization when parts related to the continuously variable transaxle are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

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

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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


      Powertrain > Engine and ECT > Trouble Codes

    5. Read the DTCs using the GTS .

      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 GTS (SPORTS MODE SELECTION SW)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. In accordance with the display on the GTS, read the Data List.


      Powertrain > Engine and ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Sports Mode Selection SW Sport mode select switch status OFF or ON

      • ON: Shift lever in M, "+" or "-"

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

      		 -

      Powertrain > Engine and ECT > Data List
      Tester Display
      Sports Mode Selection SW
      Result
      Result Proceed to
      Data display is within Normal Condition range A
      Data display is not within Normal Condition range B

    B

    INSPECT SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH) Click here

    A

  3. READ VALUE USING GTS (SPORTS SHIFT UP SW AND SPORTS SHIFT DOWN SW)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. In accordance with the display on the GTS, read the Data List.


      Powertrain > Engine and ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Sports Shift Up SW Sport shift up switch status OFF or ON

      • ON: Shift lever held in "+"

      • OFF: Shift lever not held in "+"

      		 -
      Sports Shift Down SW Sport shift down switch status OFF or ON

      • ON: Shift lever held in "-"

      • OFF: Shift lever not held in "-"

      		 -

      Powertrain > Engine and ECT > Data List
      Tester Display
      Sports Shift Up SW
      Sports Shift Down SW
      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 LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH)


    1. B00575KC53
      *a

      Component without harness connected

      (Shift Lever Assembly (Transmission Control Switch))

      Disconnect the shift lever assembly (transmission control switch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (SFTU) - 2 (E) Shift lever held in "+" Below 1 Ω
      3 (SFTU) - 2 (E) Shift lever in M 10 kΩ or higher
      1 (SFTD) - 2 (E) Shift lever held in "-" Below 1 Ω
      1 (SFTD) - 2 (E) Shift lever in M 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH) Click here

    OK

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


    1. B0058STC17
      *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
      A35-43 (SFTD) - Body ground Shift lever held in "-" Below 1 Ω
      A35-43 (SFTD) - Body ground Shift lever in M 10 kΩ or higher
      A35-42 (SFTU) - Body ground Shift lever held in "+" Below 1 Ω
      A35-42 (SFTU) - Body ground Shift lever in M 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

    OK

  6. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here

  7. INSPECT SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH)


    1. B00575KC12
      *a

      Component without harness connected

      (Shift Lever Assembly (Transmission Control Switch))

      Disconnect the shift lever assembly (transmission control switch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4 (IG) - 5 (S) Shift lever in M Below 1 Ω
      4 (IG) - 5 (S) Shift lever not in M 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH) Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH) POWER SOURCE)


    1. B0058ZLC38
      *a

      Front view of wire harness connector

      (to Shift Lever Assembly (Transmission Control Switch))

      Disconnect the shift lever assembly (transmission control switch) connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I23-4 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      I23-4 (IG) - Body ground Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK POWER SOURCE CIRCUIT (TRANSMISSION CONTROL SWITCH)

    OK

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


    1. Disconnect the I23 shift lever assembly (transmission control switch) connector.

    2. Disconnect the A35 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I23-5 (S) - A35-59 (S) Always Below 1 Ω
      I23-5 (S) - Body ground and other terminals Always 10 kΩ or higher
      A35-59 (S) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

    OK

  10. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here