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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Steering Control System (DTCS) (2 Of 2) >> DAST 2 (Steering Angle Sub Control Module) >> DTC C13EB-00: Booting Angle Processing >> DTC Diagnosis Procedure >> Direct Adaptive Steering System
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Direct Adaptive Steering System

  1. CHECK THE SELF-DIAGNOSTIC RESULT 

    SYMBOL With CONSULT

    1. Start the engine.
      CAUTION: Never drive the vehicle.
    2. Perform self-diagnosis for "EPS/DAST 3" and "DAST 1".
    3. Check the diagnostic result for "EPS/DAST 3", "DAST 1" and "DAST 2".

    What is DTC detected?

    Except C13E9-00, C13EB-00, C13EE-00, C13EF-00, C13F0-00, C13F1-00 or C13F2-00

    Refer to DTC Index (EPS/DAST 3), DTC Index (DAST 1) or DTC Index (DAST 2).

    C13EE-00, C13EF-00, C13F0-00, C13F1-00 or C13F2-00

    GO TO 4.

    C13E9-00 or C13EB-00

    GO TO 2.

  2. AUTO ADJUSTING MODE (1) 
    1. Drive straight ahead at around 32 km/h (20 MPH) or more for more than 5 seconds.
      CAUTION:
      • Check the safety operation of the vehicle before driving.
      • Bumps, pot holes, or other steering input may affect the calibration. Drive on a straight flat road.
      • Keep the steering wheel, so the vehicle stays in a straight line.
      • Traffic condition that requires steering input may affect the calibration. Drive on a road with very light or no traffic.
      NOTE: Drive at 65 km/h (40 MPH) or less, as much as possible. It is easy to succeed with the work.
    2. Stop the vehicle.
    3. Turn the ignition switch OFF, and then turn it ON again.

    Does the power steering warning lamp turn OFF?

    YES

    WORK END

    NO

    Repeat the step 1-3 (driving - turning ignition switch OFF/ON) 5 times until the warning lamp turns OFF. When the waning lamp does not turn OFF, GO TO 3.

    NO

    GO TO 3.

  3. AUTO ADJUSTING MODE (2) 
    1. When the vehicle has not yet stopped, stop the vehicle on the safety place.
    2. Turn the ignition switch OFF, and then turn it ON again.
    3. Turn the steering wheel to the center position.
    4. Turn the steering wheel to left/right 90 degree or more from center position 2 times.
    5. Drive straight ahead at around 32 km/h (20 MPH) or more for more than 5 seconds.
      CAUTION:
      • Check the safety operation of the vehicle before driving.
      • Bumps, pot holes, or other steering input may affect the calibration. Drive on a straight flat road.
      • Keep the steering wheel, so the vehicle stays in a straight line.
      • Traffic condition that requires steering input may affect the calibration. Drive on a road with very light or no traffic.
      NOTE: Drive at 65 km/h (40 MPH) or less, as much as possible. It is easy to succeed with the work.
    6. During driving the vehicle, turn the steering wheel to the center position slowly.
    7. Stop the vehicle.
    8. Turn the ignition switch OFF, and then turn it ON again.

    Does the power steering warning lamp turn OFF?

    YES

    WORK END

    NO

    Repeat the step 3-8 (driving - turning ignition switch OFF/ON) 5 times until the warning lamp turns OFF. When the waning lamp does not turn OFF, GO TO 4.

  4. PREPARATION 
    1. Set the front wheel on the turn table.
      NOTE: Do not lift up the vehicle during "DAST CALIBRATION (MODE1)"
    2. Connect the 12 V battery charger to protect the 12 V battery.
      NOTE: Much electricity is used in "DAST CALIBRATION (MODE1)".
    3. Connect the CONSULT.
    4. Turn the ignition switch ON.
      CAUTION: Never state or start the engine.

    GO TO 5.

  5. ECU CONFIGURATION 

    SYMBOL With CONSULT

    1. Perform configuration for steering force control module. Refer to Work Procedure .
      NOTE: The replacement of control module included in configuration is not required.
    2. Perform configuration for steering angle main control module. Refer to Work Procedure .
      NOTE: The replacement of control module included in configuration is not required.
    3. Perform configuration for steering angle sub control module. Refer to Work Procedure .
      NOTE: The replacement of control module included in configuration is not required.

    GO TO 6.

  6. DAST CALIBRATION (MODE1) [CLUTCH PHASE LEARNING] 

    SYMBOL With CONSULT

    1. Perform "DAST CALIBRATION (MODE1)". Refer to Work Procedure .
    2. Turn the ignition switch OFF.
      CAUTION: Be sure to perform this step.

    GO TO 7.

  7. DAST CALIBRATION (MODE1) [STEERING RACK NEUTRAL POSITION LEARNING] 

    SYMBOL With CONSULT

    1. Turn the ignition switch ON.
      CAUTION: Never state or start the engine.
    2. Perform "DAST CALIBRATION (MODE1)". Refer to Work Procedure .

    GO TO 8.

  8. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION 

    SYMBOL With CONSULT

    1. On the CONSULT screen, select "ABS">>"WORK SUPPORT">>"ST ANGLE SENSOR ADJUSTMENT".
    2. Touch START.
      CAUTION: Never touch steering wheel while adjusting steering angle sensor.
    3. After approximately 10 seconds, select "END".
    4. Turn ignition switch OFF, and then turn it ON again.
      CAUTION: Be sure to perform this step.

    GO TO 9.

  9. PERFORM SELF-DIAGNOSIS 

    SYMBOL With CONSULT

    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Start the engine.
      CAUTION: Never drive the vehicle.
    3. Perform self-diagnosis for "DAST 2".

    Is DTC "C13E9-00" detected?

    YES

    Replace steering angle main control module, steering angle sub control module and steering force control module. Refer to STEERING ANGLE MAIN CONTROL MODULE : Removal & Installation , STEERING ANGLE SUB CONTROL MODULE : Removal & Installation and STEERING FORCE CONTROL MODULE : Removal & Installation . After replacing the control modules, confirm that DTC "C13E9-00" is not detected.

    NO

    WORK END

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