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Nissan Armada 2025-2026 Service and Repair Manual: Diagnosis and Repair Work Flow

Nissan Armada 2025-2026 Service and Repair Manual / Restraints / Srs Airbag Control System / Diagnosis and Repair Work Flow

Work Flow

OVERALL SEQUENCE

DETAILED FLOW

GET INFORMATION FOR SYMPTOM

  1. Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurs).

  2. Check operation condition of the function that is malfunctioning.

>>

GO TO 2.

CHECK DTC

  1. Check DTC.

  2. Perform the following procedure if DTC is detected.

    • Record DTC (Print them out using CONSULT).

    • Erase DTC.

    • Study the relationship between the cause detected by DTC and the symptom described by the customer.

Are any symptoms described and any DTC detected?

Symptom is described, DTC is detected>>

GO TO 3.

Symptom is described, DTC is not detected>>

GO TO 4.

Symptom is not described, DTC is detected>>

GO TO 5.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.

Verify relation between the symptom and the condition when the symptom is detected.

>>

GO TO 5.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.

Verify relation between the symptom and the condition when the symptom is detected.

>>

GO TO 6.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected again.

Is DTC detected?

YES>>

GO TO 7.

NO>>

Check according to Intermittent Incident.

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.

>>

GO TO 7.

DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

Inspect according to Diagnosis Procedure of the system.

Is malfunctioning part detected?

YES>>

GO TO 8.

NO>>

Check according to Intermittent Incident.

REPAIR OR REPLACE THE MALFUNCTIONING PART

  1. Repair or replace the malfunctioning part.

  2. Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replacement.

  3. Check DTC. If DTC is detected, erase it.

>>

GO TO 9.

FINAL CHECK

When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the malfunction is repaired securely.

When symptom is described by the customer, refer to confirmed symptom in step 3 or 4, and check that the symptom is not detected.

Is DTC detected and does symptom remain?

YES-1>>

DTC is detected: GO TO 7.

YES-2>>

Symptom remains: GO TO 4.

NO>>

Before returning the vehicle to the customer, always erase DTC.

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