AUTOMATIC TRANSMISSION SYSTEM (for 2TR-FE) Transmission Control Switch Circuit

DESCRIPTION

After moving the shift lever to S, it is possible to switch the shift range between "1" (S1 range) and "6" (S6 range) 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

B007R9ZE01

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. 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.

    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/

      ON or OFF

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

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

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

    B

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

    A

  2. 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.

    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/

      ON or OFF

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

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

      		 -
      Sports Shift Down SW

      Sport shift down switch status/

      ON or OFF

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

      • OFF: Shift lever not 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

    B

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

    A

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

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


    1. B007PPLE21
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Control Switch)

      Disconnect the 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 "+"

      (Up-shift)

      		 Below 1 Ω
      4 (SFTD) - 11 (E)

      Shift lever held in "-"

      (Down-shift)

      		 Below 1 Ω
      5 (SFTU) - 11 (E) Shift lever not held in "+" 10 kΩ or higher
      4 (SFTD) - 11 (E) Shift lever not held in "-" 10 kΩ or higher

    NG

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

    OK

  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)


    1. B007U0WE37
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

      Disconnect the transmission control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H72-11 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. B007TIFE01
      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
      B94-42 (SFTU) - Body ground

      Shift lever held in "+"

      (Up-shift)

      		 Below 1 Ω
      B94-43 (SFTD) - Body ground

      Shift lever held in "-"

      (Down-shift)

      		 Below 1 Ω
      B94-42 (SFTU) - Body ground Shift lever not held in "+" 10 kΩ or higher
      B94-43 (SFTD) - Body ground Shift lever not held in "-" 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

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


    1. B007PPLE20
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Control Switch)

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

    NG

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

    OK

  7. CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)


    1. B007U0WE36
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

      Disconnect the 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
      H72-6 (IG) - Body ground Ignition switch ON 11 to 14 V
      H72-6 (IG) - Body ground Ignition switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the H72 transmission control switch connector.

    2. Disconnect the B94 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H72-13 (S) - B94-59 (S) Always Below 1 Ω
      H72-13 (S) - Body ground Always 10 kΩ or higher
      B94-59 (S) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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