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

A0056HCE04

PROCEDURE


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


    1. A0054PDE02
      Text in Illustration
      *1

      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
      D5-2 (ECC) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. A00572GE01
      Text in Illustration
      *1

      Component without harness connected

      (Spiral Cable Sub-assembly)

      Remove the spiral cable sub-assembly Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z6-2 (SUP) - D5-9 (SUP) Always Below 1 Ω
      z6-3 (SDN) - D5-10 (SDN) Always Below 1 Ω
      z6-6 (ECC) - D5-2 (ECC) Always Below 1 Ω

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  3. INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY (LH (-) AND RH (+))


    1. A00558BE04
      Text in Illustration
      *1

      Component without harness connected

      (Transmission Shift Switch Assembly)
      *2 for LH
      *3 for RH

      Remove the transmission shift switch assembly Click here.

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

      Standard Resistance
      for LH
      Tester Connection Switch Condition Specified Condition
      SDN - ECC "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      SDN - ECC "-" shift paddle not operated (down-shift) 1 MΩ or higher
      for RH
      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 Click here

    OK

  4. INSPECT NO. 1 SWITCH WIRE


    1. A0053ZGE22
      Text in Illustration
      *1

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

    NG

    REPLACE NO. 1 SWITCH WIRE Click here

    OK

  5. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. A00580UE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      Disconnect the steering pad switch assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      z6-2 (SUP) - z6-6 (ECC) "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      z6-3 (SDN) - z6-6 (ECC) "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      z6-2 (SUP) - z6-6 (ECC) "+" shift paddle not operated (up-shift) 1 MΩ or higher
      z6-3 (SDN) - z6-6 (ECC) "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

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


    1. A0055XEE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A40-16 (SFTU) - Body ground "+" shift paddle operated and held (up-shift) Below 2.5 Ω
      A40-51 (SFTD) - Body ground "-" shift paddle operated and held (down-shift) Below 2.5 Ω
      A40-16 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 MΩ or higher
      A40-51 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 MΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  8. PERFORM INITIALIZATION

    Note


    • Performing reset memory will clear the learned values of both the yaw rate sensor (deceleration sensor 0 point calibration) and CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate sensor 0 point calibration and CVT oil pressure calibration when replacing any of the parts shown in the following table:

      Replaced Part

      • Continuously variable transaxle assembly

      • ECM

      • Oil pressure sensor

      • Yaw rate sensor

    • After performing reset memory, always perform yaw rate sensor (deceleration sensor 0 point) calibration first, and then CVT oil pressure calibration.

    • Always perform 0 point calibration with the vehicle on level ground (Inclination: 0 +/-0.25°).

    • Do not shake or vibrate the vehicle during 0 point calibration.


    1. Using the intelligent tester, perform reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration Click here.

    2. Check that no DTC is stored.


    NEXT

    END