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

  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.

2.Check dtc

  1. Check dtc
  2. Perform the following procedure if dtc is detected.
  1. Check related service bulletins for information.

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.

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.

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 detected dtc, and then check that dtc is detected again. At this time, always connect consult to the vehicle, and check self diagnostic results in real time.

If two or more dtcs are detected, refer to bcs-48, "dtc inspection priority chart" and determine trouble diagnosis order.

Note:

Is dtc detected? Yes >> go to 7.

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

6.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.

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

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

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 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 detected, erase it.

>> GO TO 9.

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.

Wiring diagram
Power door lock system Wiring diagram Intelligent key system Wiring diagram Trunk lid opener Wiring diagram ...

DTC/circuit diagnosis
U1000 CAN COMM CIRCUIT Description Refer to lan-7, "can communication system : system description". Dtc logic Dtc detection logic Note: U1000 can be set if a module harness was disconn ...

Other materials:

Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injur ...

Power supply and ground circuit
Bcm (body control system) (with intelligent key system) BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis Procedure Regarding Wiring Diagram information, refer to BCS-51, "Wiring Diagram". 1.CHECK FUSES AND FUSIBLE LINK Check that the following fuses and fusible link ...

Washer fluid level switch circuit
Description Transmits the washer level switch signal to the combination meter. Diagnosis procedure Regarding Wiring Diagram information, refer to MWI-28, "Wiring Diagram". 1.Check washer level switch signal circuit Turn ignition switch off. Disconnect combination meter connecto ...

© 2014-2019 Copyright www.nisentra.com