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Home >> Nissan-Datsun >> 2023 >> Sentra S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1 Of 2) >> Basic Inspection >> How To Erase Permanent DTC >> Work Procedure
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Work Procedure

OUTLINE 

When a DTC is stored in control module 

When a DTC is stored in control module and MIL is ON, a permanent DTC is erased with MIL shutoff if the same malfunction is not detected after performing the driving pattern for MIL shutoff three times in a raw.

GNSDB34001Courtesy of NISSAN
*1: When the same malfunction is detected in two consecutive trips, MIL will illuminate. *2: MIL will turn off after vehicle is driven 3 times (driving pattern B) without any malfunctions.

When a DTC is not stored in control module 

The erasing method depends on a permanent DTC stored in control module. Refer to the following table.

NOTE: SYMBOL If the applicable permanent DTC includes multiple groups, perform the procedure of Group B first. If the permanent DTC is not erased, perform the procedure of Group A.

x: Applicable -: Not applicable

Group* Perform "DTC CONFIRMATION PROCEDURE" for applicable DTCs. Driving pattern Reference
B D
A x - - Work Procedure (Group A)
B - x x Work Procedure (Group B)

*: For group, refer to "DTC Index" of each control module.

PERMANENT DTC ITEM 

For permanent DTC items, MIL turns ON. Refer to "DTC Index" of each control module.

PERMANENT DTC SERVICE PROCEDURE 

GNSDB33435Courtesy of NISSAN

Work Procedure (Group A) 

GNSDB37256Courtesy of NISSAN
*1: When the same malfunction is detected in two consecutive trips, MIL will illuminate.
  1. CHECK DTC 
    1. Check DTC.

    Is any DTC detected?

    YES>>

    Repair malfunction (s) and erase DTC. Refer to "DTC Index" of each control module.

    NO>>

    GO TO 2.

  2. CHECK PERMANENT DTC 
    1. SYMBOL With CONSULT:
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select "PERMANENT DTC STATUS" mode With CONSULT:
    2. SYMBOL With GST
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select Service $0A with GST.

    Is any permanent DTC detected?

    YES>>

    GO TO 3.

    NO>>

    END

  3. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Perform "DTC CONFIRMATION PROCEDURE" for DTCs which are the same as permanent DTCs stored in control module.

    >>

    GO TO 4.

  4. CHECK PERMANENT DTC 
    1. SYMBOL With CONSULT:
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select "PERMANENT DTC STATUS" mode With CONSULT:
    2. SYMBOL With GST
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select Service $0A with GST.

    Is any permanent DTC detected?

    YES>>

    GO TO 1.

    NO>>

    END

Work Procedure (Group B) 

GNSDB34079Courtesy of NISSAN
*1: When the same malfunction is detected in two consecutive trips, MIL will illuminate. *2: After experiencing driving pattern B and D, permanent DTC is erased. *3: Indication does not change unless the ignition switch is turned from ON to OFF twice even after experiencing driving pattern B or D.
NOTE: SYMBOL Drive the vehicle according to only driving patterns indicating "INCMP" in driving patterns B and D on the "PERMANENT DTC STATUS" screen.
  1. CHECK DTC 
    1. Check DTC.

    Is any DTC detected?

    YES>>

    Repair malfunction (s) and erase DTC.

    NO>>

    GO TO 2.

  2. CHECK PERMANENT DTC 
    1. SYMBOL With CONSULT:
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select "PERMANENT DTC STATUS" mode With CONSULT:
    2. SYMBOL With GST
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select Service $0A with GST.

    Is any permanent DTC detected?

    YES>>

    GO TO 3.

    NO>>

    END

  3. DRIVE DRIVING PATTERN B 
      CAUTION:
      • Always drive at a safe speed.
      • Never erase self-diagnosis results.
      • If self-diagnosis results are erased during the trip of driving pattern B or D, the counter of driving pattern B and D is reset.

    1. SYMBOL With CONSULT:

      1. Turn ignition switch ON.
      2. Start engine and warm it up to normal operating temperature.
      3. Use "PERMANENT DTC WORK SUPPORT" mode With CONSULT: to drive the vehicle according to driving pattern B. Refer to Diagnosis Description .
    2. SYMBOL With GST
      1. Turn ignition switch ON.
      2. Start engine and warm it up to normal operating temperature.
      3. Drive the vehicle according to driving pattern B. Refer to Diagnosis Description .

    >>

    GO TO 4.

  4. CHECK PERMANENT DTC 
    1. SYMBOL With CONSULT:
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select "PERMANENT DTC STATUS" mode With CONSULT:
    2. SYMBOL With GST
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select Service $0A with GST.

    Is any permanent DTC detected?

    YES>>

    GO TO 5.

    NO>>

    END

  5. DRIVE DRIVING PATTERN D 
      CAUTION:
      • Always drive at a safe speed.
      • Never erase self-diagnosis results.
      • If self-diagnosis results are erased during the trip of driving pattern B or D, the counter of driving pattern B and D is reset.
      1. Drive the vehicle according to driving pattern D. Refer to Diagnosis Description .

    >>

    GO TO 6.

  6. CHECK PERMANENT DTC 
    1. SYMBOL With CONSULT:
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select "PERMANENT DTC STATUS" mode With CONSULT:
    2. SYMBOL With GST
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.
      4. Turn ignition switch ON.
      5. Select Service $0A with GST.

    Is any permanent DTC detected?

    YES>>

    GO TO 1.

    NO>>

    END

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