AUTOMATIC TRANSMISSION SYSTEM (for 1UR-FE) 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

A01EOYIE01

INSPECTION PROCEDURE

PROCEDURE


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


    1. A01ERJ3E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable with Sensor 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
      E102-2 (ECC) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY


    1. Remove the spiral cable with sensor sub-assembly Click here.

      A01ESF0E01

    2. Set the spiral cable to the center position.

    3. Measure the resistance between the terminals of the spiral cable.


      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
        z54-6 (SUP) - E102-14 (SUP) Always Below 1 Ω
        z54-12 (SDN) - E102-7 (SDN) Always Below 1 Ω
        z54-7 (ECC) - E102-2 (ECC) Always Below 1 Ω

        Note

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

        Text in Illustration
        *a

        Component without harness connected

        (Spiral Cable with Sensor Sub-assembly)

    NG

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here

    OK

  3. INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY RH (+)


    1. A01EQ8LE01
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Shift Switch Assembly RH (+))

      Remove the transmission shift switch assembly RH (+) Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      SUP - ECC "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      SUP - ECC "+" shift paddle not operated (up-shift) 1 MΩ or higher

    NG

    REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY RH (+) Click here

    OK

  4. INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY LH (-)


    1. A01EPTTE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (Transmission Shift Switch Assembly LH (-))

      Disconnect the transmission shift switch assembly LH (-) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      z55-2 (SUP) - z55-7 (ECC) "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      z55-3 (SDN) - z55-7 (ECC) "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      z55-2 (SUP) - z55-7 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z55-3 (SDN) - z55-7 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

    REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY LH (-) Click here

    OK

  5. INSPECT NO. 1 SWITCH WIRE


    1. A01ERVCE14
      Text in Illustration
      *a

      Component without harness connected

      (No. 1 Switch Wire)

      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
      z54-6 (SUP) - z54-7 (ECC) "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      z54-12 (SDN) - z54-7 (ECC) "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      z54-6 (SUP) - z54-7 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z54-12 (SDN) - z54-7 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

    REPLACE NO. 1 SWITCH WIRE Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM)


    1. A01ERA7E71
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A53-38 (SFTU) - Body ground "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      A53-27 (SFTD) - Body ground "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      A53-38 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      A53-27 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here