Nissan Pathfinder (2007 year). Manual - part 286

TROUBLE DIAGNOSES WORK FLOW

LAN-19

[CAN FUNDAMENTAL]

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2007 Pathfinder

CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION CHART)

Determine CAN system type based on vehicle equipment. Then choose the correct diagnosis sheet.

NOTE:
There are two styles for CAN system type specification charts. Depending on the number of available system
types, either style A or style B may be used.

CAN System Type Specification Chart (Style A)

NOTE:
CAN system type is easily checked with the vehicle equipment identification information shown in the chart.

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TROUBLE DIAGNOSES WORK FLOW

2007 Pathfinder

CAN System Type Specification Chart (Style B)

NOTE:
CAN system type is easily checked with the vehicle equipment identification information shown in the chart.

SKIB8889E

TROUBLE DIAGNOSES WORK FLOW

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2007 Pathfinder

CREATE INTERVIEW SHEET

Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview
sheet.

Interview Sheet (Example)

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TROUBLE DIAGNOSES WORK FLOW

2007 Pathfinder

CREATE DATA SHEET
Create CONSULT-II Data Attachment Sheet

Print out the following CONSULT-II screens, and attach them to the CONSULT-II data attachment sheet.

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SELECT SYSTEM

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SELF-DIAG RESULTS

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CAN DIAG SUPPORT MNTR

NOTE:
Some items may not be needed depending on CAN system type of vehicle.

SKIB8721E

TROUBLE DIAGNOSES WORK FLOW

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2007 Pathfinder

Create On-board Diagnosis Copy Sheet

Display the trouble diagnosis result of CAN communication with the on-board diagnosis function on the vehicle
monitor, etc. Copy them on the on-board diagnosis copy sheet.

NOTE:

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For some models, CAN communication diagnosis result is received from the vehicle monitor. (CONSULT-
II is not available.)

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For the details, refer to 

LAN-63, "ON-BOARD DIAGNOSIS COPY SHEET"

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[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

2007 Pathfinder

CREATE DIAGNOSIS SHEET

NOTE:
Be sure to use the diagnosis sheet for the correct CAN system type.

Print Diagnosis Sheet

Print the diagnosis sheet for the applicable CAN system type.

Check of Received Data

Check the created data sheet for missing information.

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For abbreviations, refer to 

LAN-41, "Abbreviation List"

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TROUBLE DIAGNOSES WORK FLOW

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2007 Pathfinder

DETECT THE ROOT CAUSE

Identify the root cause using the created diagnosis sheet.

Identifying the root cause

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Draw a line on the diagnosis sheet to indicate the possible cause. Narrow the search.

NOTE:

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Color-code when drawing lines.

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Do not draw a line onto a existing line.

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Drawing a line is not necessary if the circuit is shorted. Refer to 

LAN-32, "Present Error — Short Circuit —

"

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LAN-39, "Past Error — Short Circuit —"

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Refer to the following for details of the trouble diagnosis procedure.

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LAN-26, "Present Error — Open Circuit —"

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LAN-32, "Present Error — Short Circuit —"

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LAN-33, "Past Error — Open Circuit —"

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LAN-39, "Past Error — Short Circuit —"

NOTE:
When the root cause appears to be a branch line or short circuit, be sure to check the control unit as well as
the communication line.

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TROUBLE DIAGNOSES WORK FLOW

2007 Pathfinder

Present Error — Open Circuit —

Identify the error circuit using information from the “SELECT SYSTEM” and “CAN DIAG SUPPORT MNTR”
screens.

1.

SELECT SYSTEM: Check the items indicated in “SELECT SYSTEM”. Draw a line on the diagnosis sheet
to indicate the error circuit.

NOTE:
CAN communication line has no error if units other than Diag on CAN units are indicated. An error may be
on the power supply of the control unit, DDL1 line or DDL2 line.

a.

“TRANSMISSION” which is Diag on CAN unit, is not indicated on “SELECT SYSTEM” screen. This indi-
cates that DLC is not receiving a signal from TCM. Draw a line to indicate an error between DLC and TCM
(line 1-a in the figure).

NOTE:

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Diag on CAN units are not indicated on the “SELECT SYSTEM” screen when the CAN line between
Diag on CAN unit and the data link connector is open.

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For a description of Diag on CAN, refer to 

LAN-6, "Diag on CAN"

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