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СИСТЕМА БЕССТУПЕНЧАТОЙ ТРАНСМИССИИ, Diagnostic DTC:P1589

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DTC Code DTC Name
P1589 Acceleration Sensor Learning Value
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DESCRIPTION

The ECM stores this DTC if Deceleration Sensor Zero Point Calibration is not performed or has failed after system components such as the ECM have been replaced.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P1589 Acceleration Sensor Learning Value

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other


  1. DTC Detection Condition 1:

  2. The vehicle speed is 2 km/h (1.2 mph) or more.

  3. Deceleration Sensor Zero Point Calibration has not been completed.

  4. Immediately

  5. 1-trip detection logic


  1. DTC Detection Condition 2:

  2. Deceleration Sensor Zero Point Calibration is performed.

  3. The learned values of Deceleration Sensor Zero Point Calibration are abnormal (out of normal range).

  4. Immediately

  5. 1-trip detection logic

DTC Detection Condition 1:


  • Deceleration Sensor Zero Point Calibration has not been performed.

DTC Detection Condition 2:


  • Vehicle was not stable during Deceleration Sensor Zero Point Calibration.

  • Airbag ECU assembly (Yaw rate and acceleration sensor)

  • ECM

 Does not come on DTC stored
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CAUTION / NOTICE / HINT

Note:

  • Perform initialization after replacing any parts related to the continuously variable transaxle system.

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  • Check that no DTCs are stored after performing initialization.

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Tip:

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Drive the vehicle at 2 km/h (1 mph) or more.

  2. Check for DTCs again.

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PROCEDURE


  1. Click here

    PERFORM INITIALIZATION (DECELERATION SENSOR ZERO POINT CALIBRATION)

    Note:

    • If CVT Oil Pressure Calibration is performed before Deceleration Sensor Zero Point Calibration, DTC P1589 will be stored. In this case, perform steps *1, *2, *3, *4 and *5 to return the system to normal.

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

    • Do not shake or vibrate the vehicle during calibration.


    1. Turn the engine switch off.*1

    2. Move the shift lever to P and apply the parking brake.*2

    3. Connect the GTS to the DLC3.

    4. Turn the engine switch on (IG).*3

      Note:

      Do not start the engine.

    5. Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory.*4


      1. Powertrain > Engine > Utility
        Tester Display
        Reset Memory




    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Deceleration Sensor Zero Point Calibration.*5


      1. Powertrain > Engine > Utility
        Tester Display
        Deceleration Sensor Zero Point Calibration




      Tip:

      • When "Complete" is displayed on the screen, Deceleration Sensor Zero Point Calibration is complete.

      • If "Error" is displayed on the screen, there may be a malfunction in the airbag ECU assembly (yaw rate and acceleration sensor) circuit.

      • Shaking or vibrating the vehicle during Deceleration Sensor Zero Point Calibration may cancel calibration. If "Error" is displayed on the screen, perform step *5 again.

    7. If "Error" is displayed on the GTS, read the DTCs using the GTS.

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      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      Deceleration Sensor Zero Point Calibration is completed normally A
      DTC P1589 is output B

  2. Click here

    PERFORM CVT OIL PRESSURE CALIBRATION

    Note:

    Do not perform Reset Memory and clear the learned values.


    1. Turn the engine switch off and wait at least 30 seconds.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and wait at least 2 seconds.

      Note:

      Do not start the engine.

      Tip:

      CVT Oil Pressure Sensor Zero Point Calibration is performed when the engine switch is turned on (IG) (engine stopped). However, CVT Oil Pressure Sensor Zero Point Calibration will not be performed under the following conditions:


      • Oil pressure sensor value is 0.065 MPa (0.663 kgf/cm2, 9.43 psi) or more.

      • CVT oil temperature is -5°C (23°F) or less or 120°C (248°F) or more.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility.

    5. Start the engine and wait at least 5 seconds.

      Note:

      • Start the engine with the shift lever in P.

      • After starting the engine, do not operate the accelerator pedal.

    6. Enter the following menus: Powertrain / Engine and ECT / Utility / CVT Oil Pressure Calibration


      1. Powertrain > Engine > Utility
        Tester Display
        CVT Oil Pressure Calibration




      Tip:

      • When performing CVT Oil Pressure Calibration, the engine idle speed will increase.

      • When "Complete" is displayed on the screen, CVT Oil Pressure Calibration is complete.

      • The learned values cannot be cleared by only disconnecting and reconnecting the cable to the negative (-) battery terminal.

    7. Check for DTCs again.

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      1. Powertrain > Engine > Trouble Codes


      Result
      Proceed to
      NEXT

    • NEXT

      END

  3. Click here

    CHECK AIRBAG ECU ASSEMBLY


    1. Check the airbag ECU assembly (yaw rate and acceleration sensor) for any inclination, bracket deformation or installation clearance.

      OK
      The airbag ECU assembly (yaw rate and acceleration sensor) is installed correctly.
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      SECURELY INSTALL AIRBAG ECU ASSEMBLY w/o Navigation System:Click here

      SECURELY INSTALL AIRBAG ECU ASSEMBLY w/ Navigation System:Click here

  4. Click here

    READ VALUE USING GTS (G SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    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.


      1. Powertrain > Engine > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        G Sensor Converted output voltage of G sensor

        min.: 0 V

        max.: 79.998 V

        • 2.31 to 2.69 V: Vehicle on level ground

        • 1.88 to 2.5 V: Decelerating

        • 2.5 to 3.11 V: Accelerating

        • Stuck at 1.87 V: G sensor malfunction

        • Stuck at 1.87 V: Communication malfunction

        		 -



      1. Powertrain > Engine > Data List
        Tester Display
        G Sensor




      Result
      Result Proceed to
      Data List value is normal A
      Data List value is not normal B

  5. Click here

    REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

  6. Click here

    REPLACE AIRBAG ECU ASSEMBLY


    1. Replace the airbag ECU assembly (yaw rate and acceleration sensor).

      w/o Navigation System:Click here

      w/ Navigation System:Click here

      Result
      Proceed to
      NEXT