Nissan Sentra manuals

Nissan Sentra Service Manual: Basic inspection

Diagnosis and repair work flow

Work flow

Overall sequence

Detailed flow


Detailed flow

1.Get information for symptom

Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the “diagnostic work sheet”. (Refer to ec-129, "diagnostic work sheet".) >> Go to 2.

2.Check dtc in ecm

  1. Check dtc in ecm.
  2. If a dtc is detected, perform the following steps, and after this, erase dtc.
  1. Check related Service Bulletins

Are any symptoms described and any DTCs 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.

3.Confirm the symptom

Try to confirm the symptom described by the customer.

Also study the normal operation and fail-safe related to the symptom. Refer to ec-473, "symptom table" and ec-90, "fail safe".

Diagnosis work sheet is useful to verify the incident.

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

>> Go to 5.

4.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.

5.Perform dtc confirmation procedure

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

If two or more DTCs are detected, refer to EC-93, "DTC Inspection Priority Chart" and determine trouble diagnosis order.

Note:

Is DTC detected? YES >> GO TO 7.

NO >> Check SPORT mode system. Refer to DMS-57, "Component Function Check".

6.Detect malfunctioning part 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 symptoms.

Is the symptom described? Yes >> go to 7.

No >> monitor input data from related sensors or check voltage of related ecm terminals using consult.

Refer to ec-77, "reference value".

7.Detect malfunctioning part by diagnosis procedure

Inspect according to diagnosis procedure of the system.

Is a malfunctioning part detected? Yes >> go to 8.

No >> check intermittent incident. Refer to gi-39, "intermittent incident".

8.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 displayed, erase it.

>> Go to 9.

9.Final check

When dtc was detected in step 3, perform dtc confirmation procedure or component function check again, and then check that the malfunction have been completely repaired.

When symptom was described from the customer, refer to confirmed symptom in step 4 or 5, 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.

Wiring diagram
Sport mode system Wiring diagram ...

Dtc/circuit diagnosis
Sport mode switch Component function check 1. Check sport mode switch operation Turn ignition switch on. Check SPORT mode indicator lamp turns ON/OFF on combination meter when turn SPORT mo ...

Other materials:

Rear door
Door assembly DOOR ASSEMBLY : Removal and Installation CAUTION: Use two people when removing or installing the rear door assembly due to its heavy weight. When removing and installing rear door assembly, support rear door with a suitable tool. REMOVAL   Remove rear do ...

Overdrive control switch
Component Function Check 1.CHECK SPORT INDICATOR LAMP FUNCTION Check OD OFF indicator lamp turns ON for approx. 2 seconds when ignition switch turns ON. Is the inspection result normal? YES >> GO TO 2. NO >> Go to TM-239, "Diagnosis Procedure". 2.CHECK SPORT MODE SW ...

Symptom diagnosis
Multi av system Symptom table Related to audio Related to hands-free phone Before performing diagnosis, confirm that the cellular phone being used by the customer is compatible with the vehicle. It is possible that a malfunction is occurring due to a version change of th ...

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