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 "+" selects the next higher shift range, and moving the shift lever toward "-" selects the next lower shift range.

WIRING DIAGRAM

A01VZN2E66

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 (SPORT SHIFT SWITCH STATUS)


    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 / Data List.

    5. Read the Data List according to the display on the GTS.

      Engine
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Sport Shift Up SW

      Sport shift up switch status/

      ON or OFF

      • ON: Continuously shift to "+" (Up shift)

      • OFF: Release "+" (Up shift)

      		 -
      Sport Shift Down SW

      Sport shift down switch status/

      ON or OFF

      • ON: Continuously shift to "-" (Down shift)

      • OFF: Release "-" (Down shift)

      		 -
      Result
      Result Proceed to
      Data List values are not normal A
      Data List values are normal B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

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


    1. Disconnect the H33 transmission control switch connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H33-4 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H33-2 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT LOWER SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH)


    1. A01W0USE33
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Control Switch (Lower Shift Lever 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
      3 (SFTU) - 2 (E)

      Shift lever held in "+"

      (Up shift)

      		 Below 1 Ω
      Shift lever not held in "+" 10 kΩ or higher
      1 (SFTD) - 2 (E)

      Shift lever held in "-"

      (Down shift)

      		 Below 1 Ω
      Shift lever not held in "-" 10 kΩ or higher

    NG

    REPLACE LOWER SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH) Click here

    OK

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


    1. Connect the H33 transmission control switch connector.

    2. Disconnect the A75 ECM connector.

    3. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A75-59 (S) - Body ground

      • Engine switch on (IG)

      • Shift lever in S, "+" or "-"

      		 11 to 14 V
      A75-59 (S) - Body ground

      • Engine switch on (IG)

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

      		 Below 1 V

    5. Turn the engine switch off.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A75-42 (SFTU) - Body ground

      Shift lever held in "+"

      (Up shift)

      		 Below 1 Ω
      Shift lever not held in "+" 10 kΩ or higher
      A75-43 (SFTD) - Body ground

      Shift lever held in "-"

      (Down shift)

      		 Below 1 Ω
      Shift lever not held in "-" 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR