AUTOMATIC TRANSAXLE SYSTEM Transmission Control Switch Circuit

DESCRIPTION

When the shift lever is in S and moved toward "-" or "+", it is possible to select different shift ranges (S1 to S6).

Moving the shift lever toward "+" increases the shift range by one, and moving the shift lever toward "-" decreases the shift range by one.

WIRING DIAGRAM

B00867KE11

CAUTION / NOTICE / HINT

Note


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

  • Perform registration and/or initialization when parts related to the automatic transaxle are replaced.

    Click here

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 / Sports Mode Selection SW.

    5. According to 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 (S) mode select switch status ON or OFF
      • ON: Shift lever in S, "+" or "-"

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

      -

      Powertrain > Engine and ECT > Data List
      Tester Display
      Sports Mode Selection SW
      Result
      Result Proceed to
      Data List value is normal A
      Data List value is not normal B

    B
    A
  2. READ VALUE USING GTS (SPORT SHIFT SWITCH STATUS)


    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 / Sports Shift Up SW and Sports Shift Down SW.

    5. According to 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 ON or OFF
      • ON: Shift lever held in "+" or "+" shift paddle switch operated

      • OFF: Shift lever not held in "+" and "+" shift paddle switch released

      -
      Sports Shift Down SW Sport shift down switch status ON or OFF
      • ON: Shift lever held in "-" or "-" shift paddle switch operated

      • OFF: Shift lever not held in "-" and "-" shift paddle switch released

      -

      Powertrain > Engine and ECT > Data List
      Tester Display
      Sports Shift Up SW
      Sports Shift Down SW
      Result
      Result Proceed to
      Data List values are normal A
      Data List values are not normal B

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


    1. Disconnect the K29 transmission control switch connector.

    2. B0083G5C84
      *A for LHD
      *B for RHD
      *a

      Component without harness connected

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

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

      Standard Resistance (for LHD)
      Tester Connection Condition Specified Condition
      3 (SFTU) - 2 (E) Shift lever held in "+" (Up shift) Below 1 Ω
      Shift lever not held in "+" (Up shift) 10 kΩ or higher
      1 (SFTD) - 2 (E) Shift lever held in "-" (Down shift) Below 1 Ω
      Shift lever not held in "-" (Down shift) 10 kΩ or higher
      Standard Resistance (for RHD)
      Tester Connection Condition Specified Condition
      1 (SFTU) - 2 (E) Shift lever held in "+" (Up shift) Below 1 Ω
      Shift lever not held in "+" (Up shift) 10 kΩ or higher
      3 (SFTD) - 2 (E) Shift lever held in "-" (Down shift) Below 1 Ω
      Shift lever not held in "-" (Down shift) 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

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


    1. Disconnect the K29 transmission control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K29-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

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


    1. Connect the K29 transmission control switch connector.

    2. Disconnect the A22 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A22-42 (SFTU) - Body ground Shift lever held in "+" (Up shift) Below 1 Ω
      Shift lever not held in "+" (Up shift) 10 kΩ or higher
      A22-43 (SFTD) - Body ground Shift lever held in "-" (Down shift) Below 1 Ω
      Shift lever not held in "-" (Down shift) 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

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


    1. Disconnect the K29 transmission control switch connector.

    2. B0086Y0C47
      *a

      Component without harness connected

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

      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 S, "+" or "-" Below 1 Ω
      Shift lever not in S, "+" or "-" 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG
    OK
  7. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH (POWER SOURCE))


    1. Disconnect the K29 transmission control switch connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K29-4 (IG) - Body ground Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

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


    1. Disconnect the K29 transmission control switch connector.

    2. Disconnect the A22 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A22-59 (S) - K29-5 (S) Always Below 1 Ω
      A22-59 (S) or K29-5 (S) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK
    NG