STOP AND START SYSTEM, 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 0 point it detects the diagnosis code.

DTC No. DTC Detection Condition Trouble Area
P1589

The following condition continues (1 trip detection logic):


  • When the vehicle speed is 3 km/h or more and ABS communication is normal.

  • Deceleration sensor 0 point calibration incomplete for 5 seconds or more

  • The deceleration sensor 0 point calibration is performed.

  • Airbag sensor assembly (Yaw rate sensor)

  • Skid control ECU (Brake actuator assembly)

  • Engine stop and start ECU

  1. After troubleshooting, perform the following steps to recheck for DTCs.

    Tech Tips


    • If the battery terminal has been disconnected, the stop and start will be prohibited. In this case, drive the vehicle for 15 to 40 minutes to permit the stop and start operation.

    • 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 intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Start the engine and warm it up.

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

    5. Check that no DTCs are output Click here.

  2. Check if the Stop and Start system operates normally.

    Tech Tips


    • If the battery terminal has been disconnected, the stop and start will be prohibited. In this case, drive the vehicle for 15 to 40 minutes to permit the stop and start operation.

    • 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. Warm up the engine.

    2. Turn the air conditioning system off.

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

    4. Stop the vehicle with the shift lever in D and depressed the brake pedal.

    5. Check that the engine stops.

    6. Release the brake pedal and check that the engine restarts.

CAUTION / NOTICE / HINT

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.

PROCEDURE


  1. PERFORM INITIALIZATION (DECELERATION SENSOR 0 POINT CALIBRATION)

    Note


    • Stored system information cannot be overwritten unless it is cleared. Clear the stored information and then store new system information.

    • While obtaining the zero points, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)

    • Be sure to perform this procedure on a level surface (with an inclination of less than 1 degree).


    1. Clear the zero point calibration data.


      1. Turn the ignition switch off.

      2. Check that the steering wheel is in the straight-ahead position.

      3. Check that the shift lever is in P.

      4. Connect the intelligent tester to the DLC3.

      5. Turn the ignition switch to ON.

      6. Turn the intelligent tester on.

      7. Select the engine stop and start ECU to clear the zero point calibration data using the intelligent tester. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.

      8. Turn the ignition switch off.

    2. Perform zero point calibration of the deceleration sensor.


      1. Turn the ignition switch off.

      2. Check that the steering wheel is in the straight-ahead position.

      3. Check that the shift lever is in P.

      4. Connect the intelligent tester to the DLC3.

      5. Turn the ignition switch to ON.

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

      7. After operation of the Deceleration Sensor Zero Point Calibration, keep the vehicle stationary on a level surface for 5 seconds or more.

      8. Drive the vehicle and check if the stop and start cancel indicator light comes on or not.

        Tech Tips

        When 0 point is obtained, DTP P1589 is deleted automatically.

      9. Turn the ignition switch off and disconnect the intelligent tester.

      Note

      When 0 point cannot be normally obtained, start from 0 point deletion again.

      Result
      Result Proceed to
      NG A
      OK B

    B

    END

    A

  2. READ VALUE USING INTELLIGENT TESTER (GRADIENT OF ROAD SURFACE)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

      Standard
      Tester Display Measurement Item/Range Switch Condition Specified Condition
      Gradient of Road Surface

      Degree of load gradient:

      min.: -10 m/s2

      max.: 10 m/s2

      Ignition switch ON

      Stop vehicle on level surface

      -0.7 - 0.7 m/s2

      Ignition switch ON

      Stop vehicle on slope road

      -0.7 m/s2or less

      0.7 m/s2or more

    NG

    REPLACE AIR BAG SENSOR ASSEMBLY (YAW RATE SENSOR) Click here

    OK

  3. CHECK AND REPLACE ENGINE STOP AND START ECU


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


    NEXT

  4. PERFORM INITIALIZATION (DECELERATION SENSOR 0 POINT CALIBRATION)

    Note


    • Stored system information cannot be overwritten unless it is cleared. Clear the stored information and then store new system information.

    • While obtaining the zero points, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)

    • Be sure to perform this procedure on a level surface (with an inclination of less than 1 degree).


    1. Clear the zero point calibration data.


      1. Turn the ignition switch off.

      2. Check that the steering wheel is in the straight-ahead position.

      3. Check that the shift lever is in P.

      4. Connect the intelligent tester to the DLC3.

      5. Turn the ignition switch to ON.

      6. Turn the intelligent tester on.

      7. Select the engine stop and start ECU to clear the zero point calibration data using the intelligent tester. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.

      8. Turn the ignition switch off.

    2. Perform zero point calibration of the deceleration sensor.


      1. Turn the ignition switch off.

      2. Check that the steering wheel is in the straight-ahead position.

      3. Check that the shift lever is in P.

      4. Connect the intelligent tester to the DLC3.

      5. Turn the ignition switch to ON.

      6. Confirm that the stop and start cancel indicator light blinks.

        Tech Tips

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

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

      8. After operation of the Deceleration Sensor Zero Point Calibration, keep the vehicle stationary on a level surface for 5 seconds or more.

      9. Check that the stop and start cancel indicator light turns off.

        Tech Tips

        When 0 point is obtained, DTP P1589 is deleted automatically and stop and start cancel indicator turns off.

      10. Turn the ignition switch off and disconnect the intelligent tester.


    NEXT

    END

  5. REPLACE AIR BAG SENSOR ASSEMBLY (YAW RATE SENSOR)


    1. Replace the airbag sensor assembly (yaw rate sensor) Click here.


    NEXT

  6. PERFORM INITIALIZATION (DECELERATION SENSOR 0 POINT CALIBRATION)

    Note


    • Stored system information cannot be overwritten unless it is cleared. Clear the stored information and then store new system information.

    • While obtaining the zero points, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)

    • Be sure to perform this procedure on a level surface (with an inclination of less than 1 degree).


    1. Clear the zero point calibration data.


      1. Turn the ignition switch off.

      2. Check that the steering wheel is in the straight-ahead position.

      3. Check that the shift lever is in P.

      4. Connect the intelligent tester to the DLC3.

      5. Turn the ignition switch to ON.

      6. Turn the intelligent tester on.

      7. Select the engine stop and start ECU to clear the zero point calibration data using the intelligent tester. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.

      8. Turn the ignition switch off.

    2. Perform zero point calibration of the deceleration sensor.


      1. Turn the ignition switch off.

      2. Check that the steering wheel is in the straight-ahead position.

      3. Check that the shift lever is in P.

      4. Connect the intelligent tester to the DLC3.

      5. Turn the ignition switch to ON.

      6. Confirm that the stop and start cancel indicator light blinks.

        Tech Tips

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

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

      8. After operation of the Deceleration Sensor Zero Point Calibration, keep the vehicle stationary on a level surface for 5 seconds or more.

      9. Check that the stop and start cancel indicator light turns off.

        Tech Tips

        When 0 point is obtained, DTP P1589 is deleted automatically and stop and start cancel indicator turns off.

      10. Turn the ignition switch off and disconnect the intelligent tester.


    NEXT

    END