DTC    P1589    Acceleration Sensor Learning Value

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DESCRIPTION

The ECM stores DTC P1589 if the ECM or other components are replaced that require the yaw rate and acceleration sensor to be calibrated (deceleration sensor 0 point calibration) and calibration is terminated or the vehicle is driven before calibration is complete.

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P1589
  1. The vehicle speed is 2 km/h (1.2 mph) or more.
  2. The deceleration sensor 0 point calibration is not completed.
  3. -
  4. 1-trip detection logic
  1. The deceleration sensor 0 point calibration is performed.
  1. The deceleration sensor 0 point calibration is performed.
  2. The learned values of the deceleration sensor 0 point calibration are abnormal (out of position).
  3. -
  4. 1-trip detection logic
  1. Vehicle is stabilized during the deceleration sensor 0 point calibration
  2. Yaw rate and acceleration sensor
  3. ECM

INSPECTION PROCEDURE

1.PERFORM INITIALIZATION (DECELERATION SENSOR 0 POINT CALIBRATION)

NOTICE:
  1. If the CVT oil pressure calibration is performed before the deceleration sensor 0 point calibration, DTC P1589 is stored. In this case, perform steps *1, *2, *3, *4 and *5 to return the system to normal.
  2. Always perform the 0 point calibration with the vehicle on level ground.
  3. Do not shake or vibrate the vehicle during the 0 point calibration.

  1. Turn the ignition switch off.*1

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

  1. Turn the ignition switch to ON.*3

    NOTICE:
    Do not start the engine.

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

  1. Enter the following menus: Powertrain / ECT / Utility / Deceleration Sensor 0 Point Calibration.*5

    HINT:
    1. When "Complete" is displayed on the screen, the deceleration sensor 0 point calibration is completed.
    2. If "Error" is displayed on the screen and the MIL illuminates, the yaw rate and acceleration sensor circuit may have a malfunction.
    3. Shaking or vibrating the vehicle during the 0 point calibration may cancel the calibration. If "Error" is displayed on the screen and the MIL does not illuminate, perform step *5 again.

    Result 
    Result
    		Proceed to
    Deceleration sensor 0 point calibration is completed normally
    		A
    The MIL illuminates again
    		B



B
Go to step 3
A


2.PERFORM CVT OIL PRESSURE CALIBRATION

NOTICE:
Do not initialize the learned values.

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

  1. Turn the ignition switch to ON and wait at least 2 seconds.

    NOTICE:
    Do not start the engine.

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

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

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

    HINT:
    1. During the CVT oil pressure calibration, the engine idle speed will increase.
    2. When "Complete" is displayed on the screen, the CVT oil pressure calibration is completed.
    3. The learned values cannot be cleared by only disconnecting and reconnecting the cable to the negative (-) battery terminal.

  1. Check for DTCs again.


NEXT

END 

3.CHECK YAW RATE AND ACCELERATION SENSOR

  1. Check the yaw rate and acceleration sensor for any inclination, bracket deformation or installation clearance.

    OK:
    The yaw rate and acceleration sensor is installed correctly.



NG
SECURELY INSTALL YAW RATE AND ACCELERATION SENSOR
OK


4.READ VALUE USING INTELLIGENT TESTER (G SENSOR)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List.

  1. In accordance with the display on the tester, read the Data List.

    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    G sensor
    		Converted output voltage of yaw rate and acceleration sensor/
    min.: 0 V
    max.: 5 V
    		Vehicle on level ground: 2.31 V to 2.69 V
    		-
    Result 
    Result
    		Proceed to
    Data display is not within Normal Condition range
    		A
    Data display is within Normal Condition range
    		B



NG
Go to step 7
OK


5.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


6.PERFORM INITIALIZATION

NOTICE:
  1. Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:
    Replaced Part
    1. Continuously variable transaxle assembly
    2. ECM
    3. Oil pressure sensor
    4. Yaw rate and acceleration sensor
  2. After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.
  3. Always perform the 0 point calibration with the vehicle on level ground.
  4. Do not shake or vibrate the vehicle during the 0 point calibration.

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

  1. Check for DTCs again (Click here).


NEXT

END 

7.REPLACE YAW RATE AND ACCELERATION SENSOR

  1. Replace the yaw rate and acceleration sensor (Click here).


NEXT


8.PERFORM INITIALIZATION

NOTICE:
  1. Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:
    Replaced Part
    1. Continuously variable transaxle assembly
    2. ECM
    3. Oil pressure sensor
    4. Yaw rate and acceleration sensor
  2. After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.
  3. Always perform the 0 point calibration with the vehicle on level ground.
  4. Do not shake or vibrate the vehicle during the 0 point calibration.

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

  1. Check for DTCs again (Click here).


NEXT

END