AUTOMATIC TRANSMISSION SYSTEM(for 2GD-FTV) Shift Paddle Switch Circuit

DESCRIPTION

When the shift lever is in S, the shift range can be changed using the shift paddle switches. It is also possible to select the shift range when the vehicle is being driven with the shift lever in D by operating the shift paddle switches.

WIRING DIAGRAM

B003QXFE03

CAUTION / NOTICE / HINT

CAUTION:

Refer to the SRS precaution before troubleshooting.

Click here

PROCEDURE


  1. 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.


      Powertrain > Engine > 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 paddle operated (up-shift)

      • OFF: "+" shift paddle not operated (up-shift)

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

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

      • OFF: "-" shift paddle not operated (down-shift)

      		 -

      Powertrain > Engine > 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

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

    B

  2. INSPECT SHIFT PADDLE SWITCH (TRANSMISSION SHIFT SWITCH ASSEMBLY)


    1. B003Q2MC04
      *a

      Rear view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

    2. Disconnect the I1 transmission control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G49-21 (SFTU) - Body ground "+" shift paddle operated and held (up-shift) Below 3 Ω
      G49-20 (SFTD) - Body ground "-" shift paddle operated and held (down-shift) Below 3 Ω
      G49-21 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      G49-20 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    GO TO TRANSMISSION CONTROL SWITCH CIRCUIT Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND)


    1. B003M0MC19
      *a

      Front view of wire harness connector

      (to Spiral Cable with Sensor Sub-assembly)

      Disconnect the spiral cable with sensor sub-assembly connector.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G4-2 (ECC) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - ECM)


    1. Disconnect the G49 ECM connector.

    2. Disconnect the G4 spiral cable with sensor 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
      G49-20 (SFTD) - G4-7 (SDN) Always Below 1 Ω
      G49-21 (SFTU) - G4-14 (SUP) Always Below 1 Ω
      G49-20 (SFTD) or G4-7 (SDN) - Body ground Always 10 kΩ or higher
      G49-21 (SFTU) or G4-14 (SUP) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - SHIFT PADDLE SWITCH)


    1. B003S40C20
      *a

      Steering Pad Switch Assembly Connector

      (to Spiral Cable with Sensor Sub-assembly)

      Disconnect the steering pad switch connector.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z2-6 (SUP) - z2-7 (ECC) "+" shift paddle operated and held (up-shift) Below 3 Ω
      z2-12 (SDN) - z2-7 (ECC) "-" shift paddle operated and held (down-shift) Below 3 Ω
      z2-6 (SUP) - z2-7 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z2-12 (SDN) - z2-7 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Click here

    OK

  6. INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY


    1. Inspect the spiral cable with sensor sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here

  7. INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)


    1. B003OADC06
      *1 Shift Paddle Switch LH

      Remove the shift paddle switch LH.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      SDN - ECC "-" shift paddle operated and held (down-shift) Below 3 Ω
      SDN - ECC1 "-" shift paddle operated and held (down-shift) Below 3 Ω
      SDN - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher
      SDN - ECC1 "-" shift paddle not operated (down-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Click here

    OK

  8. INSPECT SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)


    1. B003NSCC06
      *1 Shift Paddle Switch RH

      Remove the shift paddle switch RH.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      SUP - ECC1 "+" shift paddle operated and held (up-shift) Below 3 Ω
      SUP - ECC1 "+" shift paddle not operated (up-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Click here

    OK

  9. INSPECT NO. 1 SWITCH WIRE


    1. B003PVAC08
      *a

      Front view of wire harness connector

      (to Steering Pad Switch Assembly)

      Disconnect the No. 1 switch wire connector.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      SUP - ECC "+" shift paddle operated and held (up-shift) Below 3 Ω
      SDN - ECC "-" shift paddle operated and held (down-shift) Below 3 Ω
      SUP - ECC "+" shift paddle not operated (up-shift) 1 MΩ or higher
      SDN - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    NG

    REPLACE NO. 1 SWITCH WIRE Click here