AUTOMATIC TRANSMISSION SYSTEM 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

A01WTR3E02

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 engine switch on (IG).

    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/

      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)

      		 -
      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. A01WW3OE02
      Text in Illustration
      *1 *1: for LHD
      *2 *2: for RHD
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

    2. Disconnect the E52 transmission control switch (transmission floor shift assembly) connector.

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

      Standard Resistance
      for LHD:
      Tester Connection Condition Specified Condition
      A85-38 (SFTU) - Body ground "+" shift paddle operated (up-shift) Below 2.5 Ω
      A85-37 (SFTD) - Body ground "-" shift paddle operated (down-shift) Below 2.5 Ω
      A85-38 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      A85-37 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 MΩ or higher
      for RHD:
      Tester Connection Condition Specified Condition
      A86-38 (SFTU) - Body ground "+" shift paddle operated (up-shift) Below 2.5 Ω
      A86-37 (SFTD) - Body ground "-" shift paddle operated (down-shift) Below 2.5 Ω
      A86-38 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      A86-37 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 MΩ or higher

    OK

    GO TO TRANSMISSION CONTROL SWITCH CIRCUIT Click here

    NG

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


    1. A01WUXHE01
      Text in Illustration
      *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
      E102-2 (ECC) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the E102 spiral cable with sensor sub-assembly connector Click here

    2. Disconnect the A85 ECM connector (for LHD).

    3. Disconnect the A86 ECM connector (for RHD).

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

      Standard Resistance
      for LHD:
      Tester Connection Condition Specified Condition
      E102-1 (SDN) - A85-37 (SFTD) Always Below 1 Ω
      E102-8 (SUP) - A85-38 (SFTU) Always Below 1 Ω
      E102-1 (SDN) or A85-37 (SFTD) - Body ground Always 10 kΩ or higher
      E102-8 (SUP) or A85-38 (SFTU) - Body ground Always 10 kΩ or higher
      for RHD:
      Tester Connection Condition Specified Condition
      E102-1 (SDN) - A86-37 (SFTD) Always Below 1 Ω
      E102-8 (SUP) - A86-38 (SFTU) Always Below 1 Ω
      E102-1 (SDN) or A86-37 (SFTD) - Body ground Always 10 kΩ or higher
      E102-8 (SUP) or A86-38 (SFTU) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT NO. 1 SWITCH WIRE


    1. A01WWBME01
      Text in Illustration
      *a

      No. 1 Switch Wire

      (to Spiral Cable with Sensor Sub-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
      z64-1 (SUP) - z64-4 (ECC) "+" shift paddle operated (up-shift) Below 2.5 Ω
      z64-3 (SDN) - z64-4 (ECC) "-" shift paddle operated (down-shift) Below 2.5 Ω
      z64-1 (SUP) - z64-4 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z64-3 (SDN) - z64-4 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

    INSPECT SHIFT PADDLE SWITCH RH (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.


    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 RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)


    1. A01WPQCE10
      Text in Illustration
      *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 - ECC "+" shift paddle operated (up-shift) Below 2.5 Ω
      SUP - ECC "+" shift paddle not operated (up-shift) 1 MΩ or higher

    NG

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

    OK

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


    1. B0019SAE06
      Text in Illustration
      *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 (down-shift) Below 2.5 Ω
      SDN - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher

    OK

    REPLACE NO. 1 SWITCH WIRE Click here

    NG

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