CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM Pattern Select Switch Sport Mode Circuit

DTC Code DTC Name
Pattern Select Switch Sport Mode Circuit

DESCRIPTION

The ECM memory contains the programs for the normal and sport shift patterns.

By following the programs corresponding to the signals from the pattern select switch assembly, the park/neutral position switch and other various sensors, the ECM switches the shift control solenoid valves on and off, and controls the transaxle gear ratio.

WIRING DIAGRAM

C264643E05

PROCEDURE

  1. READ VALUE USING GTS (PATTERN SWITCH (PWR/M))

    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.

      Powertrain > Engine and ECT > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Pattern Switch (PWR/M)

      Pattern select switch (SPORT) status

      OFF or ON

      • OFF: Sport mode off

      • ON: Sport mode on

      -

    Result

    Result

    Proceed to

    Data display is within Normal Condition range

    A

    Data display is not within Normal Condition range

    B
    B

    INSPECT PATTERN SELECT SWITCH ASSEMBLYClick here

    A

  2. REPLACE ECM

    1. Replace the ECM.

    Result

    Proceed to

    NEXT
    NEXT

  3. PERFORM INITIALIZATION

    Note:

    • Performing Reset Memory will clear the learned value of the yaw rate and acceleration sensor (deceleration sensor zero point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform Reset Memory, yaw rate and acceleration sensor zero 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

      • Airbag sensor assembly (Yaw rate and acceleration sensor)

    • After performing Reset Memory, always perform yaw rate and acceleration sensor (deceleration sensor zero point) calibration first, and then CVT oil pressure calibration.

    • Always perform calibration with the vehicle on level ground.

    • Do not shake or vibrate the vehicle during calibration.

    1. Using the GTS, perform Reset Memory, deceleration sensor zero point calibration and CVT oil pressure calibration.

      Click here

    2. Check for DTCs again.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    END

  4. INSPECT PATTERN SELECT SWITCH ASSEMBLY

    1. C264692C03

      *a

      Component without harness connected

      (Pattern select switch assembly)

      Remove the pattern select switch assembly.

      Click here

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      6 (MSW1) - 3 (MSW2)

      Pattern select switch on

      Below 1 Ω

      6 (MSW1) - 3 (MSW2)

      Pattern select switch off

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE PATTERN SELECT SWITCH ASSEMBLY

    Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - BODY GROUND)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E83-3 (MSW2) - Body ground

      Always

      Below 1 Ω

    2. Install the pattern select switch assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - BODY GROUND)

    OK

  6. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - ECM)

    1. Disconnect the A50 ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A50-57 (PWMS) - Body ground

      Pattern select switch on

      Below 1 Ω

      A50-57 (PWMS) - Body ground

      Pattern select switch off

      10 kΩ or higher

    3. Connect the A50 ECM connector.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - ECM)

    OK

  7. REPLACE ECM

    1. Replace the ECM.

    Result

    Proceed to

    NEXT
    NEXT

  8. PERFORM INITIALIZATION

    Note:

    • Performing Reset Memory will clear the learned value of the yaw rate and acceleration sensor (deceleration sensor zero point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform Reset Memory, yaw rate and acceleration sensor zero 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

      • Airbag sensor assembly (Yaw rate and acceleration sensor)

    • After performing Reset Memory, always perform yaw rate and acceleration sensor (deceleration sensor zero point) calibration first, and then CVT oil pressure calibration.

    • Always perform calibration with the vehicle on level ground.

    • Do not shake or vibrate the vehicle during calibration.

    1. Using the GTS, perform Reset Memory, deceleration sensor zero point calibration and CVT oil pressure calibration.

      Click here

    2. Check for DTCs again.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    END