Nissan Pathfinder (2005 year). Manual - part 288

LAN-3

LAN

2005 Pathfinder

CHECK SHEET RESULTS (EXAMPLE) ........... 229

CAN SYSTEM (TYPE 8) ......................................... 256

System Description .............................................. 256
Component Parts and Harness Connector Location. 256
Schematic ............................................................ 257
Wiring Diagram - CAN - ....................................... 258

CHECK SHEET .................................................... 261

CHECK SHEET RESULTS (EXAMPLE) ........... 263

LAN-4

[CAN]

PRECAUTIONS

2005 Pathfinder

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

UKS0017I

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 injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions When Using CONSULT-II

UKS0017J

When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

CHECK POINTS FOR USING CONSULT-II

Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?

–

If YES, GO TO 2.

–

If NO, GO TO 5.

Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?

–

If YES, GO TO 3.

–

If NO, GO TO 4.

Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.

Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefore, erase the self-diagnosis results.

Diagnose CAN communication system. Refer to

LAN-6, "TROUBLE DIAGNOSES WORK FLOW"

Precautions For Trouble Diagnosis

UKS0017K

CAN SYSTEM

●

Do not apply voltage of 7.0 V or higher to the measurement terminals.

●

Use the tester with its open terminal voltage being 7.0 V or less.

●

Be sure to turn ignition switch off and disconnect negative battery terminal before checking the circuit.

PRECAUTIONS

LAN-5

[CAN]

LAN

2005 Pathfinder

Precautions For Harness Repair

UKS0017L

CAN SYSTEM

●

Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in).]

●

Do not perform bypass wire connections for the repair parts.
(The spliced wire will become separated and the characteristics
of twisted line will be lost.)

PKIA0306E

PKIA0307E

LAN-6

[CAN]

TROUBLE DIAGNOSES WORK FLOW

2005 Pathfinder

TROUBLE DIAGNOSES WORK FLOW

PFP:00004

When Displaying CAN Communication System Errors

UKS003GH

WHEN A MALFUNCTION IS DETECTED BY CAN COMMUNICATION SYSTEM

●

CAN communication line is open. (CAN H, CAN L, or both)

●

CAN communication line is shorted. (Ground, between CAN lines, or other harnesses)

●

The areas related to CAN communication of unit is malfunctioning.

WHEN A MALFUNCTION IS DETECTED EXCEPT CAN COMMUNICATION SYSTEM

●

Removal and installation of parts : When the units that perform CAN communication or the sensors
related to CAN communication are removed and installed, malfunction may be detected (or DTC other
than CAN communication may be detected).

●

Fuse blown out (removed): CAN communication of the unit may be stopped at such time.

●

Low voltage : If the voltage decreases because of battery discharge when IGN is ON, malfunction may be
detected by self-diagnosis according to the units.

TROUBLE DIAGNOSES WORK FLOW

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[CAN]

LAN

2005 Pathfinder

TROUBLE DIAGNOSIS FLOW CHART

●

Step 1 : Refer to

LAN-8, "SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE)"

●

Step 2 : Refer to

LAN-9, "ACQUISITION OF DATA BY CONSULT-II"

●

Step 3 : Refer to

LAN-10, "HOW TO USE CHECK SHEET TABLE"

●

Step 4 : Refer to

LAN-11, "Example of Filling in Check Sheet When Initial Conditions Are Reproduced"

●

Step 5 : Check and repair according to system diagnosis.

SKIB3224E

LAN-8

[CAN]

TROUBLE DIAGNOSES WORK FLOW

2005 Pathfinder

Diagnosis Procedure

UKS003GI

SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE)

Determine CAN system type from the equipment of the vehicle to select applicable check sheet.

SKIB3225E

TROUBLE DIAGNOSES WORK FLOW

LAN-9

[CAN]

LAN

2005 Pathfinder

ACQUISITION OF DATA BY CONSULT-II

Attach the data acquired by CONSULT-II on the check sheet determined according to CAN system type.(For
display control unit, transfer the data from the display screen of the vehicle to the CAN diagnosis support mon-
itor check sheet

AV-139, "CAN Communication Line Check"

SKIB3226E

LAN-10

[CAN]

TROUBLE DIAGNOSES WORK FLOW

2005 Pathfinder

HOW TO USE CHECK SHEET TABLE

Unit names displayed on CONSULT-II

“No indication” : Put a check mark to it if the unit name described in step 1 is not displayed on “SELECT
SYSTEM” screen of CONSULT-II. (Unit communicating with CONSULT-II via CAN communication line)
“–” : Column not used (Unit communicating with CONSULT-II excluding CAN communication line)

“NG” : Display “NG” when malfunction is detected in the initial diagnosis of the diagnosed unit. Replace
the unit if “NG” is displayed.
“–” : Column not used (Initial diagnosis is not performed.)

“UNKWN” : Display “UNKWN” when the diagnosed unit does not transmit the data normally. Put a check
mark to it if “UNKWN” is displayed on CONSULT-II.

“UNKWN” : Display “UNKWN” when the diagnosed unit does not receive the data normally. Put a check
mark to it if “UNKWN” is displayed on CONSULT-II.
“–” : Column not used (It is not necessary for CAN communication trouble diagnosis.)

NOTE:
CAN communication diagnosis checks if CAN communication works normally. (Contents of data are not diag-
nosed.)

●

When the initial conditions are reproduced. Refer to

LAN-11, "Example of Filling in Check Sheet When Ini-

tial Conditions Are Reproduced"

●

when the initial conditions are not reproduced. Refer to

LAN-15, "Example of Filling in Check Sheet When

Initial Conditions Are Not Reproduced"

SKIB3227E

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