AUTOMATIC TRANSAXLE SYSTEM Shift Paddle Switch Circuit

DESCRIPTION

When the shift lever is in D, operating the "-" (down shift) shift paddle switch will cause the transaxle to enter fixed range mode which restricts the highest gear. By operating the "+" (up shift) or "-" (down shift) shift paddle switch, the gear can be changed.

When the vehicle is being driven with the shift lever in D (fixed range mode), if the vehicle is stopped or the accelerator pedal is kept steady for a certain period of time with the transaxle in the same gear, the vehicle will change back automatically to normal D position operation.

When the shift lever is in M, it is possible to make use of the highest engine speeds by holding the vehicle in a gear. Gear hold control means that gear shifts will not be performed as long as the "+" (up shift), or "-" (down shift) shift paddle switch is not operated.

WIRING DIAGRAM

A01VWVZE02

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. According to the display on the GTS, read the Data List.


      Powertrain > Engine > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Sport Shift Up SW Sport shift up switch status ON or OFF

      • ON: Shift lever held in "+" or "+" shift paddle switch pulled

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

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

      • ON: Shift lever held in "-" or "-" shift paddle switch pulled

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

      		 -

      Powertrain > Engine > Data List
      Tester Display
      Sport Shift Up SW
      Sport Shift Down SW
      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 (SHIFT PADDLE SWITCH - ECM)


    1. Disconnect the A46 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A46-42 (SFTU) - A46-41 (ECCS) "+" (Up shift) shift paddle switch operated and held Below 2.5 Ω
      "+" (Up shift) shift paddle switch not operated 1 MΩ or higher
      A46-43 (SFTD) - A46-41 (ECCS) "-" (Down shift) shift paddle switch operated and held Below 2.5 Ω
      "-" (Down shift) shift paddle switch not operated 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) Click here

    OK

  3. CHECK WIRE HARNESS AND CONNECTORS (ECM - BODY GROUND)


    1. Disconnect the D1 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D1-53 (E1) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND)

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


    1. Disconnect the J29 spiral cable sub-assembly connector.

    2. Disconnect the A46 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A46-42 (SFTU) - J29-8 (SUP) Always Below 1 Ω
      A46-43 (SFTD) - J29-1 (SDN) Always Below 1 Ω
      A46-41 (ECCS) - J29-2 (ECC) Always Below 1 Ω
      A46-42 (SFTU) or J29-8 (SUP) - Body ground Always 10 kΩ or higher
      A46-43 (SFTD) or J29-1 (SDN) - Body ground Always 10 kΩ or higher
      A46-41 (ECCS) or J29-2 (ECC) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  5. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Inspect the spiral cable sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

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


    1. A01VUEBC10
      *a

      Component without harness connected

      (Shift Paddle Switch LH (Transmission Shift Switch Assembly))

      Remove the transmission shift switch assembly (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
      B-1 (SDN) - B-2 (ECC) "-" (Down shift) shift paddle switch operated and held Below 2.5 Ω
      "-" (Down shift) shift paddle switch not operated 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

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


    1. A01VTKBC08
      *a

      Component without harness connected

      (Shift Paddle Switch RH (Transmission Shift Switch Assembly))

      Remove the transmission shift switch assembly (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
      A-3 (SUP) - A-2 (ECC) "+" (Up shift) shift paddle switch operated and held Below 2.5 Ω
      "+" (Up shift) shift paddle switch not operated 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  8. INSPECT NO. 1 SWITCH WIRE


    1. A01VXP4C02
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      Install the transmission shift switch assembly.

      Click here

    2. Disconnect the z17 No. 1 switch wire connector from the spiral cable sub-assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z17-1 (SUP) - z17-4 (ECC) "+" (Up shift) shift paddle switch operated and held Below 2.5 Ω
      "+" (Up shift) shift paddle switch not operated 1 MΩ or higher
      z17-3 (SDN) - z17-4 (ECC) "-" (Down shift) shift paddle switch operated and held Below 2.5 Ω
      "-" (Down shift) shift paddle switch not operated 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE NO. 1 SWITCH WIRE Click here