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 M7 using the transmission control switch. Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" once lowers the shift range by one.

WIRING DIAGRAM

A0058DVE04

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 ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: 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 ignition switch to ON.

    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.

      Engine and ECT
      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 "-"

      		 -
      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 GTS (SPORTS SHIFT UP SW AND SPORTS SHIFT DOWN SW)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    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.

      Engine and ECT
      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 "+" (up-shift)

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

      		 -

      • ON: "+" shift paddle operated and held (up-shift)

      • OFF: "+" shift paddle not operated (up-shift)
      Sports Shift Down SW

      Sport shift down switch status/

      OFF or ON

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

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

      		 -

      • ON: "-" shift paddle operated and held (down-shift)

      • OFF: "-" shift paddle not operated (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. A0057FSE45
      Text in Illustration
      *a

      Component without harness connected

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

      Disconnect the shift lock control unit 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
      5 (SFTU) - 11 (E) Shift lever held in "+" Below 1 Ω
      5 (SFTU) - 11 (E) Shift lever in M 10 kΩ or higher
      4 (SFTD) - 11 (E) Shift lever held in "-" Below 1 Ω
      4 (SFTD) - 11 (E) Shift lever in M 10 kΩ or higher

    NG

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

    OK

  5. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - BODY GROUND)


    1. A0053GAE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the shift lock control unit 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
      D49-11 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - BODY GROUND)

    OK

  6. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM)


    1. A0058VAE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

    2. w/ Shift Paddle Switch:

      Disconnect the D136 spiral cable sub-assembly connector Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A67-43 (SFTD) - Body ground Shift lever held in "-" Below 1 Ω
      A67-43 (SFTD) - Body ground Shift lever in M 10 kΩ or higher
      A67-42 (SFTU) - Body ground Shift lever held in "+" Below 1 Ω
      A67-42 (SFTU) - Body ground Shift lever in M 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM)

    OK

  7. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    PERFORM INITIALIZATION Click here

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


    1. A0057FSE44
      Text in Illustration
      *a

      Component without harness connected

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

      Disconnect the shift lock control unit 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
      6 (IG) - 13 (S) Shift lever in M, "+" or "-" Below 1 Ω
      6 (IG) - 13 (S) Shift lever not in M, "+" or "-" 10 kΩ or higher

    NG

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

    OK

  9. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH (POWER SOURCE))


    1. A00531ZE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the shift lock control unit 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
      D49-6 (IG) - Body ground Ignition switch ON 11 to 14 V
      D49-6 (IG) - Body ground Ignition switch off Below 1 V

    NG

    CHECK POWER SOURCE CIRCUIT (TRANSMISSION CONTROL SWITCH)

    OK

  10. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM)


    1. Disconnect the D49 shift lock control unit assembly (transmission control switch) connector.

    2. Disconnect the A67 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D49-13 (S) - A67-59 (S) Always Below 1 Ω
      D49-13 (S) - Body ground and other terminals Always 10 kΩ or higher
      A67-59 (S) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM)

    OK

  11. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    PERFORM INITIALIZATION Click here