Nissan Pathfinder. Manual - part 165

AV

DIAGNOSIS AND REPAIR WORKFLOW

AV-487

< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

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OVERALL SEQUENCE

Reference 1: Refer to 

AV-413, "CONSULT Function"

.

Reference 2: Refer to 

AV-595, "Symptom Table"

.

DETAILED FLOW

1.

CHECK SYMPTOM

Check the malfunction symptoms by performing the following items. 

• Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-

tion occurred).

• Check the symptom. 

>> GO TO 2

2.

SELF-DIAGNOSIS (CONSULT)

1. Connect CONSULT and perform “SELF-DIAGNOSIS” for “MULTI AV”.

NOTE:

Skip to step 4 of the diagnosis procedure if “MULTI AV” is not displayed.

2. Check if any DTC No. is displayed in the self-diagnosis results.

AWNIA2486GB

AV-488

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DIAGNOSIS AND REPAIR WORKFLOW

Is any DTC No. displayed?

YES

>> GO TO 3

NO

>> GO TO 4

3.

CHECK SELF-DIAGNOSIS RESULTS (CONSULT)

1. Check the DTC No. indicated in the self-diagnosis results.

2. Perform the relevant diagnosis referring to the DTC No. list. Refer to 

AV-423, "DTC Index"

.

NOTE:

Start with the diagnosis for the CAN communication system if “CAN COMM CIRCUIT [U1000] or CONTROL

UNIT (CAN) [U1010]” is displayed.

>> GO TO 5

4.

PERFORM DIAGNOSIS BY SYMPTOM

Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to 

AV-595, "Symptom

Table"

.

>> GO TO 5

5.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace the identified malfunctioning parts.

NOTE:

Erase the stored self-diagnosis results after repairing or replacing the relevant components if any DTC No. has

been indicated in the self-diagnosis results. 

>> GO TO 6

6.

CHECK AFTER REPAIR

1. Perform self-diagnosis for “MULTI AV” with CONSULT after repairing or replacing the malfunctioning

parts.

2. Check if any DTC No. is displayed in the self-diagnosis results.
Is any DTC No. displayed?

YES

>> GO TO 3

NO

>> GO TO 7

7.

FINAL CHECK

Perform the operation check to confirm that the malfunction symptom is solved or that any other symptoms

are present.
Are any symptoms present?

YES

>> GO TO 4

NO

>> Inspection End.

AV

INSPECTION AND ADJUSTMENT

AV-489

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING AV CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING AV CONTROL UNIT : Description

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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 replac-

ing 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

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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 replac-

ing AV control unit.

>> GO TO 2.

2.

REPLACE AV CONTROL UNIT

Replace AV control unit. Refer to 

AV-611, "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-490, "CONFIGURATION (AV CONTROL UNIT) : Work Procedure"

.

3. If “Before Replace ECU” operation was not performed, select "After Replace ECU" or "Manual Configura-

tion" to write vehicle specification. Refer to 

AV-490, "CONFIGURATION (AV CONTROL UNIT) : Work Pro-

cedure"

.

>> GO TO 4.

4.

OPERATION CHECK

Check that the operation of the AV control unit is normal.

>> Work End.

CONFIGURATION (AV CONTROL UNIT)

AV-490

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INSPECTION AND ADJUSTMENT

CONFIGURATION (AV CONTROL UNIT) : Description

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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

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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-491, "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 con-

figuration 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.

Function

Description

"Before Replace ECU"

• Reads the vehicle configuration of current AV control unit.
• Saves the read vehicle configuration.

"After Replace ECU"

Writes the vehicle configuration with manual selection.

"Select Saved Data List"

Writes the vehicle configuration with saved data.