STOP AND START SYSTEM(for 2WW), Diagnostic DTC:P1589

DTC Code DTC Name
P1589 G Sensor Zero Point Calibration Incomplete

DESCRIPTION

In case of driving the vehicle before performing calibration of the deceleration sensor zero point, the engine stop and start ECU stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
P1589 G Sensor Zero Point Calibration Incomplete

Both of the following conditions are met for 5 seconds or more (1 trip detection logic):


  • The vehicle speed is 3 km/h (2 mph) or more and brake actuator assembly communication is normal.

  • Deceleration sensor zero point calibration is incomplete

  • The deceleration sensor zero point calibration is not performed.

  • Deceleration sensor (airbag sensor assembly)

  • Brake actuator assembly

  • Engine stop and start ECU

 Blinks DTC stored

CONFIRMATION DRIVING PATTERN

Tech Tips

DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.

Click here


  1. CONFIRMATION AFTER TROUBLESHOOTING

    Tech Tips


    • If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. In this case, drive the vehicle approximately 5 to 60 minutes until refresh charge is completed and stop and start control operation is permitted.

    • Allow the engine to idle for 3 minutes after the engine warms up and check that the engine speed is within 50 rpm of the target idle speed.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Clear the DTCs.

      Click here


      Powertrain > Stop and Start > Clear DTCs

    4. Start the engine and warm it up.

    5. Drive the vehicle at 3 km/h (1.9 mph) or more for 5 seconds or more.

    6. Check that DTCs are not output.

      Click here


      Powertrain > Stop and Start > Trouble Codes

  2. STOP AND START SYSTEM OPERATION CHECK

    Tech Tips

    If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. In this case, drive the vehicle approximately 5 to 60 minutes until refresh charge is completed and stop and start control operation is permitted.


    1. Start the engine and warm it up.

    2. Turn the air conditioning system off.

    3. Drive the vehicle at 7 km/h (4.3 mph) or more.

      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

    4. Stop the vehicle, move the shift lever to neutral and release the clutch pedal.

    5. Allow the engine to stop by stop and start control.

    6. Depress the clutch pedal and start the engine.

CAUTION / NOTICE / HINT

Note


  • Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.

    Click here

  • After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.

    Click here

  • After replacing the engine stop and start ECU or airbag sensor assembly, perform deceleration sensor zero point clear and calibration.

    Click here

Tech Tips

Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

Click here

PROCEDURE


  1. PERFORM REGISTRATION (DECELERATION SENSOR ZERO POINT CLEAR, DECELERATION SENSOR ZERO POINT CALIBRATION)

    Note


    • Once the zero point is stored, it cannot be overwritten until the data is cleared. Be sure to perform zero point clear and calibration after replacing the airbag sensor assembly.

    • Park the vehicle on a level surface (grade: +/-1%). Do not shake the vehicle body or open/close any of the doors during zero point calibration. To avoid vibrations caused by the engine idling, do not start the engine.


    1. Clear the deceleration sensor zero point calibration data.


      1. Turn the ignition switch off.

      2. Connect the GTS to the DLC3.

      3. Move the shift lever to neutral and apply the parking brake.

      4. Turn the ignition switch to ON.

        Tech Tips

        Do not start the engine.

      5. Turn the GTS on.

      6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Clear

        Note

        When the deceleration sensor zero point is cleared, the system information stored in the engine stop and start ECU is also cleared. If the vehicle is driven for 5 seconds or more at 3 km/h (2 mph) or more in this condition, the engine stop and start ECU stores DTC P1589 and blinks the stop and start cancel indicator light.

      7. Turn the ignition switch off.

    2. Perform zero point calibration of the deceleration sensor.


      1. Check the shift lever in neutral.

      2. Connect the GTS to the DLC3.

      3. Check that the parking brake is applied.

      4. Turn the ignition switch to ON.

        Tech Tips

        Do not start the engine.

      5. Turn the GTS on.

      6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Calibration.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Calibration

        Tech Tips

        If DTC P1589 is stored, the stop and start cancel indicator light blinks.

      7. While keeping the vehicle stationary, follow the prompts on the GTS screen. Check that "Complete" is displayed on the GTS screen.

        Note

        If zero point calibration fails, perform again from "CLEAR THE ZERO POINT CALIBRATION DATA".

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  2. READ VALUE USING GTS (GRADIENT OF ROAD SURFACE)


    1. Enter the following menus: Powertrain / Stop and Start / Data List / Gradient of Road Surface.

    2. Check the road gradient displayed on the GTS.


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Gradient of Road Surface Degree of road gradient

      Min.: -10.24 m/s2

      Max.: 10.16 m/ s2


      • -0.7 to 0.7 m/s2(Vehicle is stopped on level surface)

      • -0.7 m/s2or less / 0.7 m/s2or more (Vehicle is stopped on slope road)

      		 -

      Powertrain > Stop and Start > Data List
      Tester Display
      Gradient of Road Surface
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    OK

  3. CHECK AND REPLACE ENGINE STOP AND START ECU


    1. Check and replace the engine stop and start ECU.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. PERFORM REGISTRATION (DECELERATION SENSOR ZERO POINT CLEAR, DECELERATION SENSOR ZERO POINT CALIBRATION)

    Note


    • Once the zero point is stored, it cannot be overwritten until the data is cleared. Be sure to perform zero point clear and calibration after replacing the airbag sensor assembly.

    • Park the vehicle on a level surface (grade: +/-1%). Do not shake the vehicle body or open/close any of the doors during zero point calibration. To avoid vibrations caused by the engine idling, do not start the engine.


    1. Clear the deceleration sensor zero point calibration data.


      1. Turn the ignition switch off.

      2. Connect the GTS to the DLC3.

      3. Move the shift lever to neutral and apply the parking brake.

      4. Turn the ignition switch to ON.

        Tech Tips

        Do not start the engine.

      5. Turn the GTS on.

      6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Clear

        Note

        When the deceleration sensor zero point is cleared, the system information stored in the engine stop and start ECU is also cleared. If the vehicle is driven for 5 seconds or more at 3 km/h (2 mph) or more in this condition, the engine stop and start ECU stores DTC P1589 and blinks the stop and start cancel indicator light.

      7. Turn the ignition switch off.

    2. Perform zero point calibration of the deceleration sensor.


      1. Check the shift lever in neutral.

      2. Connect the GTS to the DLC3.

      3. Check that the parking brake is applied.

      4. Turn the ignition switch to ON.

        Tech Tips

        Do not start the engine.

      5. Turn the GTS on.

      6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Calibration.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Calibration

        Tech Tips

        If DTC P1589 is stored, the stop and start cancel indicator light blinks.

      7. While keeping the vehicle stationary, follow the prompts on the GTS screen. Check that "Complete" is displayed on the GTS screen.

        Note

        If zero point calibration fails, perform again from "CLEAR THE ZERO POINT CALIBRATION DATA".

      Result
      Proceed to
      NEXT

    NEXT

    END

  5. REPLACE AIRBAG SENSOR ASSEMBLY


    1. Replace the airbag sensor assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. PERFORM REGISTRATION (DECELERATION SENSOR ZERO POINT CLEAR, DECELERATION SENSOR ZERO POINT CALIBRATION)

    Note


    • Once the zero point is stored, it cannot be overwritten until the data is cleared. Be sure to perform zero point clear and calibration after replacing the airbag sensor assembly.

    • Park the vehicle on a level surface (grade: +/-1%). Do not shake the vehicle body or open/close any of the doors during zero point calibration. To avoid vibrations caused by the engine idling, do not start the engine.


    1. Clear the deceleration sensor zero point calibration data.


      1. Turn the ignition switch off.

      2. Connect the GTS to the DLC3.

      3. Move the shift lever to neutral and apply the parking brake.

      4. Turn the ignition switch to ON.

        Tech Tips

        Do not start the engine.

      5. Turn the GTS on.

      6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Clear

        Note

        When the deceleration sensor zero point is cleared, the system information stored in the engine stop and start ECU is also cleared. If the vehicle is driven for 5 seconds or more at 3 km/h (2 mph) or more in this condition, the engine stop and start ECU stores DTC P1589 and blinks the stop and start cancel indicator light.

      7. Turn the ignition switch off.

    2. Perform zero point calibration of the deceleration sensor.


      1. Check the shift lever in neutral.

      2. Connect the GTS to the DLC3.

      3. Check that the parking brake is applied.

      4. Turn the ignition switch to ON.

        Tech Tips

        Do not start the engine.

      5. Turn the GTS on.

      6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Calibration.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Calibration

        Tech Tips

        If DTC P1589 is stored, the stop and start cancel indicator light blinks.

      7. While keeping the vehicle stationary, follow the prompts on the GTS screen. Check that "Complete" is displayed on the GTS screen.

        Note

        If zero point calibration fails, perform again from "CLEAR THE ZERO POINT CALIBRATION DATA".

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE ENGINE STOP AND START ECU Click here