CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM(for 1ZR-FAE) 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 SPORT switch (combination 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

C290726E04
C290726E03

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.

    5. According to 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)

      SPORT mode switch status

      OFF or ON

      • OFF: SPORT mode off

      • ON: SPORT mode on

      -

      Powertrain > Engine and ECT > Data List

      Tester Display

      Pattern Switch (PWR/M)

    Result

    Result

    Proceed to

    Data List values are normal

    A

    Data List values are not normal

    B
    B

    CHECK VEHICLE CONDITIONClick here

    A

  2. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here

  3. CHECK VEHICLE CONDITION

    1. Choose the model to be inspected.

    Result

    Result

    Proceed to

    for Hatchback, Wagon

    A

    for Sedan

    B
    B

    INSPECT PATTERN SELECT SWITCH ASSEMBLYClick here

    A

  4. INSPECT COMBINATION SWITCH ASSEMBLY

    1. A231050C11

      *a

      Component without harness connected

      (SPORT Switch (Combination Switch Assembly))

      Remove the SPORT switch (combination switch assembly).

      Click here

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      8 - 3

      Switch being pushed

      Below 50 Ω

      8 - 3

      Switch not being pushed

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE COMBINATION SWITCH ASSEMBLY

    Click here

    OK

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

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E136-3 - Body ground

      Always

      Below 1 Ω

    2. Install the SPORT switch (combination switch assembly).

      Click here

    Result

    Proceed to

    OK

    NG
    NG

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

    OK

  6. CHECK HARNESS AND CONNECTOR (COMBINATION 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

      Switch being pushed

      Below 50 Ω

      A50-57 (PWMS) - Body ground

      Switch not being pushed

      10 kΩ or higher

    3. Connect the A50 ECM connector.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)

    OK

  7. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here

  8. INSPECT PATTERN SELECT SWITCH ASSEMBLY

    1. C264692C05

      *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 - 3

      Pattern select switch pushed in

      Below 1 Ω

      6 - 3

      Pattern select switch not pushed in

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE PATTERN SELECT SWITCH ASSEMBLY

    Click here

    OK

  9. 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 - 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

  10. 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 pushed in

      Below 1 Ω

      A50-57 (PWMS) - Body ground

      Pattern select switch not pushed in

      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

  11. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here