Nissan Sentra Service Manual: Basic inspection

Diagnosis and repair workflow

Work flow

OVERALL SEQUENCE

DETAILED FLOW

1.GET INFORMATION FOR SYMPTOM

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

>> GO TO 2

2.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. Refer to AV-393, "Symptom Table".

>> GO TO 3

3.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the system.

Is malfunctioning part detected? YES >> GO TO 4

NO >> GO TO 2

4.REPAIR OR REPLACE THE MALFUNCTIONING PART

1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure.

>> GO TO 5

5.FINAL CHECK

Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.

Was the repair confirmed? YES >> Inspection End.

NO >> GO TO 2

Inspection and adjustment

Additional service when replacing av control unit

Additional service when replacing av control unit : description

BEFORE REPLACEMENT

When replacing AV control unit, save or print current vehicle specification with CONSULT configuration before replacement.

NOTE:

If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replacing AV control unit.

AFTER REPLACEMENT

CAUTION:

When replacing AV control unit, you must perform “After Replace ECU” with CONSULT.

• Complete the procedure of “After Replace ECU” in order.

• If you set incorrect “After Replace ECU”, incidents might occur.

• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.

Additional service when replacing av control unit : work procedure

1.SAVING VEHICLE SPECIFICATION

-CONSULT

Enter “Re/Programming, Configuration” and perform “Before Replace ECU” to save or print current vehicle specification.

NOTE:

If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replacing AV control unit.

>> GO TO 2.

2.REPLACE AV CONTROL UNIT

Replace AV control unit. Refer to AV-406, "Removal and Installation".

>> GO TO 3.

3.WRITING VEHICLE SPECIFICATION

CONSULT

1. Enter "Re/Programming, Configuration".
2. If “Before Replace ECU” operation was performed, automatically an "Operation Log Selection" screen will be displayed. Select the applicable file from the "Saved Data List" and press “Confirm” to write vehicle specification. Refer to AV-350, "CONFIGURATION (AV CONTROL UNIT) : Work Procedure".
3. If “Before Replace ECU” operation was not performed, select "After Replace ECU" or "Manual Configuration" to write vehicle specification. Refer to AV-350, "CONFIGURATION (AV CONTROL UNIT) : Work Procedure".

>> GO TO 4.

4.OPERATION CHECK

Check that the operation of the AV control unit and camera images (fixed guide lines) are normal.

>> Work End.

Configuration (av control unit)

Configuration (av control unit) : description

Vehicle specification needs to be written with consult because it is not written after replacing av control unit.

Configuration has three functions as follows:

Caution:

• When replacing av control unit, you must perform “select saved data list” or "after replace ecu" with consult.

• Complete the procedure of “select saved data list” or "after replace ecu" in order.

• If you set incorrect “select saved data list” or "after replace ecu", incidents might occur.

• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.

• Never perform “select saved data list” or "after replace ecu" except for new av control unit.

Configuration (av control unit) : work procedure

1.Writing mode selection

Consult

Select “Reprogramming, Configuration” of AV control unit.

When writing saved data>>GO TO 2.

When writing manually>>GO TO 3.

2.Perform “saved data list”

Consult

Automatically “Operation Log Selection” window will display if “Before Replace ECU” was performed. Select applicable file from the “Save Data List” and press “Confirm”.

>> Work End.

3.Perform “after replace ecu” or “manual configuration”

Consult

1. Select “after replace ecu” or “manual configuration”.
2. Identify the correct model and configuration list. Refer to AV-351, "CONFIGURATION (AV CONTROL UNIT) : Configuration List".
3. Confirm and/or change setting value for each item.

Caution:

Thoroughly read and understand the vehicle specification. Ecu control may not operate normally if the setting is not correct.

4. Select “Next”.

Caution:

Make sure to select “next”, confirm each setting value and press “ok” even if the indicated configuration of brand new av control unit is same as the desirable configuration. If not, configuration which is set automatically by selecting vehicle model can not be memorized.

5. When "completed", select "end".

>> Go to 4.

4.Operation check

Confirm that each function controlled by av control unit operates normally.

>> Work end.

Configuration (av control unit) : configuration list

Caution:

Thoroughly read and understand the vehicle specification. Incorrect settings may result in abnormal control of ecu.

⇔: Items which confirm vehicle specifications

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