Nissan Sentra manuals

Nissan Sentra Service Manual: Basic inspection

Diagnosis and repair workflow

Work Flow

Detailed flow

1.Interview from the customer

Clarify customer complaints before inspection. First of all, perform an interview utilizing stc-20, "diagnostic work sheet" and reproduce symptoms as well as fully understand it. Ask customer about his/her complaints carefully. Check symptoms by driving vehicle with customer, if necessary.

Caution:

Customers are not professional. Never guess easily like “maybe the customer means that...,” Or “maybe the customer mentions this symptom”.

>> Go to 2.

2.Check symptom

Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by interview. Also check that the symptom is not caused by protection function. Refer to STC-13, "Protection Function".

Caution:

When the symptom is caused by normal operation, fully inspect each portion and obtain the understanding of customer that the symptom is not caused by a malfunction.

>> Go to 3.

3.Perform self-diagnosis

Perform self-diagnosis. With consult


Perform self-diagnosis.

Is any dtc detected? Yes >> record or print dtc and freeze frame data (ffd). Go to 4.

No >> go to 6.

4.Recheck symptom

With consult


  1. Erase self-diagnostic results.

  2. Perform dtc confirmation procedures for the malfunctioning system.

Note:

If some DTCs are detected at the same time, determine the order for performing the diagnosis based on STC- 14, "DTC Inspection Priority Chart".

Is any dtc detected? Yes >> go to 5.

No >> check harness and connectors based on the information obtained by interview. Refer to gi-39, "intermittent incident".

5.Repair or replace malfunctioning parts

>> Go to 7.

6.Identify malfunctioning system by symptom diagnosis

Estimate malfunctioning system based on symptom diagnosis and perform inspection.

Can the malfunctioning system be identified?

Yes >> go to 7.

No >> check harness and connectors based on the information obtained by interview. Refer to gi-39, "intermittent incident".

7.Final check

With consult


  1. Check the reference value for eps control unit.

  2. Recheck the symptom and check that symptom is not reproduced on the same conditions.

Is the symptom reproduced? YES >> GO TO 3.

NO >> Inspection End.

Diagnostic Work Sheet

Description

Interview sheet sample


DTC/circuit diagnosis


Wiring diagram
Power steering control system Wiring Diagram ...

DTC/circuit diagnosis
...

Other materials:

Basic inspection
Diagnosis and repair work flow Work flow Detailed flow 1.Obtain information about symptom Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurs. >> GO TO 2. 2.Check symptom Check the symptom based ...

Structure and operation
TRANSAXLE TRANSAXLE : Cross-Sectional View Converter housing Oil pump Counter drive gear Control valve Oil pan Primary pulley Steel belt Secondary pulley Planetary gear (auxiliary gearbox) Side cover Transaxle case Differential case Final gear Reduction gear Cou ...

Preparation
Special Service Tools The actual shape of the tools may differ from those illustrated here. Commercial Service Tools Clip list Descriptions for Clips Replace any clips which are damaged during removal or installation. ...

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