AUTOMATIC 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

A01KARZE01

CAUTION / NOTICE / HINT

CAUTION:

Refer to the SRS precaution before troubleshooting.

Click here

Tech Tips


  • Refer to the inspection procedure for the CAN communication system.

  • If the CAN communication malfunctions, the TCM cannot receive current data from the ECM. In this case, the freeze frame data output from the TCM has not been updated, so the data will not be useful for the inspection. However, reading the Data List as the first step in troubleshooting is an effective way to find malfunctions.

  • The malfunctioning area can be confirmed using the Bus Check function of the GTS.

    for LHD:

    Click here

    for RHD:

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BODY GROUND)


    1. A01KCNOC01
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      Disconnect the spiral cable connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G8-2 (ECC) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Remove the spiral cable sub-assembly.

      Click here

      A01KCSIC01
      *1 Spiral Cable Sub-assembly - -

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


      1. After setting the spiral cable to the center position, rotate the spiral cable 2.5 times clockwise and measure the resistance. Then rotate the spiral cable 2.5 times counterclockwise and measure the resistance.

      2. After setting the spiral cable to the center position, rotate the spiral cable 2.5 times clockwise. Then while rotating the spiral cable 5 times counterclockwise, measure the resistance.

        Standard Resistance
        Tester Connection Condition Specified Condition
        G8-14 (SUP) - z1-6 (SUP) Always Below 1 Ω
        G8-7 (SDN) - z1-12 (SDN) Always Below 1 Ω
        G8-2 (ECC) - z1-7 (ECC) Always Below 1 Ω
        G8-14 (SUP) or z1-6 (SUP) - All other terminals Always 10 kΩ or higher
        G8-7 (SDN) or z1-12 (SDN) - All other terminals Always 10 kΩ or higher
        G8-2 (ECC) or z1-7 (ECC) - All other terminals Always 10 kΩ or higher

        Note

        As the spiral cable may break, do not rotate the spiral cable more than the specified amount.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

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


    1. A01KBAKC01
      *1

      Shift Paddle Switch LH

      (Transmission Shift Switch Assembly)

      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 Switch Condition Specified Condition
      SFTD - ECC "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      SFTD - ECC1 "-" 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 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

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


    1. A01KCYBC01
      *1

      Shift Paddle Switch RH

      (Transmission Shift Switch Assembly)

      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 Switch 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
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  5. INSPECT NO. 1 SWITCH WIRE


    1. A01KDSUC01
      *a No. 1 Switch Wire (Steering Pad Switch Side)

      Disconnect the No. 1 switch wire connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      SFTD - ECC "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      SFTU - ECC "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      SFTD - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher
      SFTU - ECC "+" shift paddle not operated (up-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 SWITCH WIRE Click here

    OK

  6. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. A01KC4DC02
      *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 Switch Condition Specified Condition
      z1-6 (SUP) - z1-7 (ECC) "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      z1-12 (SDN) - z1-7 (ECC) "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      z1-6 (SUP) - z1-7 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z1-12 (SDN) - z1-7 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  7. INSPECT HARNESS AND CONNECTOR (SPIRAL CABLE - ECM)


    1. A01KCDLC05
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B76-61 (SFTU) - Body ground "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      A61-28 (SFTD) - Body ground "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      B76-61 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      A61-28 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 MΩ or higher
      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