CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM Shift Paddle Switch Circuit

DESCRIPTION

When the shift lever is in M, 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

A0052L5E10

CAUTION / NOTICE / HINT

CAUTION:

Refer to the SRS precaution before troubleshooting Click here.

Note


  • Perform initialization when parts related to the continuously variable transaxle are replaced Click here.

  • Check that no DTCs are stored after performing initialization 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 / Primary.

    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 lever held in "+" (up-shift)

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

      		 -

      • ON: "+" shift paddle operated and held (up-shift)

      • OFF: "+" shift paddle not operated (up-shift)
      Sports Shift Down SW

      Sport shift down switch status/

      OFF or ON

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

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

      		 -

      • ON: "-" shift paddle operated and held (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

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

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


    1. A0054ZXE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

    2. Disconnect the D49 shift lock control unit assembly (transmission control switch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A67-42 (SFTU) - Body ground "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      A67-42 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      A67-43 (SFTD) - Body ground "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      A67-43 (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 SUB-ASSEMBLY - BODY GROUND)


    1. A005390E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      Disconnect the spiral cable 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
      D136-2 (ECC) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

    OK

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


    1. Disconnect the D136 spiral cable sub-assembly connector Click here

    2. Disconnect the A67 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D136-7 (SDN) - A67-43 (SFTD) Always Below 1 Ω
      D136-7 (SDN) or A67-43 (SFTD) - Body ground Always 10 kΩ or higher
      D136-14 (SUP) - A67-42 (SFTU) Always Below 1 Ω
      D136-14 (SUP) or A67-42 (SFTU) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

    OK

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


    1. A00590PE02
      Text in Illustration
      *a

      Steering Pad Switch Assembly Connector

      (to Spiral Cable Sub-assembly)

      Disconnect the steering pad switch assembly connector Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z25-6 (SUP) - z25-7 (ECC) "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      z25-6 (SUP) - z25-7 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z25-12 (SDN) - z25-7 (ECC) "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      z25-12 (SDN) - z25-7 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

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

    OK

  6. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Inspect the spiral cable sub-assembly Click here.


    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  7. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    PERFORM INITIALIZATION Click here

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


    1. A0059BOE09
      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
      SFTD - ECC "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      SFTD - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher
      SFTD - ECC1 "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      SFTD - ECC1 "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

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

    OK

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


    1. A0054PSE08
      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
      SFTU - ECC1 "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      SFTU - ECC1 "+" shift paddle not operated (up-shift) 1 MΩ or higher

    NG

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

    OK

  10. INSPECT NO. 1 SWITCH WIRE


    1. A0057OIE12
      Text in Illustration
      *a

      No. 1 Switch Wire

      (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
      SFTD - ECC "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      SFTD - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher
      SFTU - ECC "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      SFTU - ECC "+" shift paddle not operated (up-shift) 1 MΩ or higher

    OK

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    NG

    REPLACE NO. 1 SWITCH WIRE Click here