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Work Flow

Fig 1: Diagnosis And Repair Work Flow Chart
G05735295Courtesy of NISSAN MOTOR CO., U.S.A.
  1. GET INFORMATION FOR SYSTEM

    Interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred) as much as possible when the customer brings the vehicles in.

    GO TO 2.

  2. STUDY AND UNDERSTAND THE SYSTEM DESCRIPTION

    Understand the operation condition or non-operation condition of pre-crash seat belt. Refer to "SYSTEM DESCRIPTION ".

    GO TO 3.

  3. CHECK DTC

    Perform "Self-diagnosis procedure" of appropriate DTC to check if DTC is detected again.

    At this time, always connect CONSULT-III to the vehicle, and then check the diagnosis results in real time on "DATA MONITOR (AUTO RECORD)".

    There is no priority for each DTC. Record them based on the following rules.

    Current malfunction: Record all DTCs detected.

    Past malfunction: Record up to 5 DTCs. When the 6th DTC is detected, it is overwritten to the first recorded DTC.

    Is DTC detected? 

    YES: GO TO 4.

    NO: Follow the diagnosis simulation test to check. Refer to "INTERMITTENT INCIDENT ".

  4. PERFORM PRELIMINARY CHECK

    Perform Pre-Diagnosis Inspection. Refer to "DESCRIPTION ".

    GO TO 5.

  5. DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS

    Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step 4, and determine the trouble diagnosis order based on possible causes and symptom.

    With CONSULT-III: GO TO 6.

    Without CONSULT-III: GO TO  7 (Parts system).

    Without CONSULT-III: GO TO  8 (Power supply, ground system).

  6. PERFORM DTC CONFIRMATION PROCEDURE

    Perform the inspection with "DTC REPRODUCTION PROCEDURE" of the applicable system.

    GO TO 7.

  7. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

    Identify the malfunctioning part with "Diagnosis Procedure".

    Are malfunctioning parts detected? 

    YES: GO TO  10.

    NO: GO TO  9.

  8. PERFORM COMPONENT FUNCTION CHECK

    Identify the malfunctioning part with "Component Parts Function Inspection".

    Are malfunctioning parts detected? 

    YES: GO TO  10.

    NO: GO TO 9.

  9. PERFORM COMPONENT INSPECTION

    Perform the inspection with "Component Parts Inspection".

    GO TO 10.

  10. REPAIR OR REPLACE THE MALFUNCTIONING PART

    Repair or replace the specified malfunctioning parts.

    GO TO 11.

  11. FINAL CHECK

    Perform "CONSULT-III function" again to check that the repair is performed correctly.

    Check that malfunctions are not reproduced when obtaining the malfunction information from the customer, referring to the symptom inspection result in step 4.

    Are all malfunctions corrected? 

    YES:

    • Before delivering the vehicle to the customer, check that DTC is erased.
    • INSPECTION END

      NO: DTC is reproduced: GO TO  6.