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K ELECTRICAL

B
SECTION
LAN SYSTEM C

E
CONTENTS
CAN MNTR" SCREEN FOR ABS ACTUATOR AND F
ELECTRIC UNIT (CONTROL UNIT) .................. 22 .
PRECAUTIONS ......................................................... 3 . DESCRIPTION OF "CAN DIAG SUPPORT
Precautions for Supplemental Restraint System MNTR" SCREEN FOR IPDM E/R ...................... 23 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DESCRIPTION OF "CAN DIAG SUPPORT
SIONER" ................................................................. 3
. MNTR" SCREEN FOR DISPLAY CONTROL
Precautions When Using CONSULT-II .................... 3 . UNIT ................................................................... 24
.
CHECK POINTS FOR USING CONSULT-II ........ 3 . H
CAN COMMUNICATION .......................................... 25 .
Precautions for Trouble Diagnosis .......................... 3 . System Description ................................................ 25.
CAN SYSTEM ...................................................... 3 . Component Parts and Harness Connector Location 25 ...
Precautions for Harness Repair .............................. 4 . Schematic .............................................................. 26
. I
CAN SYSTEM ...................................................... 4 . Wiring Diagram -- CAN -- .................................... 27 .
TROUBLE DIAGNOSES WORK FLOW ................... 5 . CAN Communication Unit ...................................... 30 .
When Displaying CAN Communication System TYPE 1/TYPE 2/TYPE 3/TYPE 4 ....................... 31 . J
Errors ...................................................................... 5
. TYPE 5/TYPE 6 .................................................. 35 .
WHEN A MALFUNCTION IS DETECTED BY TYPE 7/TYPE 8/TYPE 9/TYPE 10 ..................... 37 .
CAN COMMUNICATION SYSTEM ...................... 5 . CAN SYSTEM (TYPE 1) .......................................... 41 .
WHEN A MALFUNCTION IS DETECTED LAN
Component Parts and Harness Connector Location 41 ...
EXCEPT CAN COMMUNICATION SYSTEM ....... 5 . Schematic .............................................................. 41
.
TROUBLE DIAGNOSIS FLOW CHART .............. 6 . Wiring Diagram -- CAN -- .................................... 41 .
Diagnosis Procedure ............................................... 7 . Check Sheet .......................................................... 42
. L
SELECTING CAN SYSTEM TYPE (HOW TO CHECK SHEET RESULTS (EXAMPLE) ............ 44 .
USE SPECIFICATION TABLE) ............................ 7 . CAN SYSTEM (TYPE 2) .......................................... 55 .
ACQUISITION OF DATA BY CONSULT-II ........... 8 . Component Parts and Harness Connector Location 55 ... M
HOW TO USE CHECK SHEET TABLE ............... 9 . Schematic .............................................................. 55
.
CAN Diagnostic Support Monitor .......................... 16 . Wiring Diagram -- CAN -- .................................... 55 .
DESCRIPTION OF "CAN DIAG SUPPORT Check Sheet .......................................................... 56
.
MNTR" SCREEN FOR ECM .............................. 16 . CHECK SHEET RESULTS (EXAMPLE) ............ 58 .
DESCRIPTION OF "CAN DIAG SUPPORT CAN SYSTEM (TYPE 3) .......................................... 69 .
MNTR" SCREEN FOR TCM .............................. 17 . Component Parts and Harness Connector Location 69 ...
DESCRIPTION OF "CAN DIAG SUPPORT Schematic .............................................................. 69
.
MNTR" SCREEN FOR BCM .............................. 17 . Wiring Diagram -- CAN -- .................................... 69 .
DESCRIPTION OF "CAN DIAG SUPPORT Check Sheet .......................................................... 70
.
MNTR" SCREEN FOR METER ......................... 18 . CHECK SHEET RESULTS (EXAMPLE) ............ 72 .
DESCRIPTION OF "CAN DIAG SUPPORT CAN SYSTEM (TYPE 4) .......................................... 84 .
MNTR" SCREEN FOR TRANSFER CONTROL Component Parts and Harness Connector Location 84 ...
UNIT ................................................................... 19
. Schematic .............................................................. 84
.
DESCRIPTION OF "CAN DIAG SUPPORT Wiring Diagram -- CAN -- .................................... 84 .
MNTR" SCREEN FOR DRIVER SEAT CON- Check Sheet .......................................................... 85
.
TROL UNIT ........................................................ 21 . CHECK SHEET RESULTS (EXAMPLE) ............ 87 .
DESCRIPTION OF "CAN DIAG SUPPORT

Revision: September 2005 LAN-1 2006 Pathfinder
CAN SYSTEM (TYPE 5) ........................................ 101 . Wiring Diagram -- CAN -- .................................. 161 .
Component Parts and Harness Connector Location 101 . Check Sheet ........................................................ 162 .
Schematic ............................................................ 101
. CHECK SHEET RESULTS (EXAMPLE) ........... 164 .
Wiring Diagram -- CAN -- .................................. 101 . CAN SYSTEM (TYPE 10) ....................................... 177 .
Check Sheet ........................................................ 102
. Component Parts and Harness Connector Location .177
CHECK SHEET RESULTS (EXAMPLE) .......... 104 . Schematic ............................................................ 177.
CAN SYSTEM (TYPE 6) ........................................ 116 . Wiring Diagram -- CAN -- .................................. 177 .
Component Parts and Harness Connector Location 116 . Check Sheet ........................................................ 178 .
Schematic ............................................................ 116
. CHECK SHEET RESULTS (EXAMPLE) ........... 180 .
Wiring Diagram -- CAN -- .................................. 116 . TROUBLE DIAGNOSIS FOR SYSTEM ................. 195 .
Check Sheet ........................................................ 117
. Inspection Between TCM and Data Link Connector
CHECK SHEET RESULTS (EXAMPLE) .......... 119 . Circuit ................................................................... 195
.
CAN SYSTEM (TYPE 7) ........................................ 131 . Inspection Between Data Link Connector and ABS
Component Parts and Harness Connector Location 131 . Actuator and Electric Unit (Control Unit) Circuit ... 196 .
Schematic ............................................................ 131
. ECM Circuit Inspection ........................................ 197 .
Wiring Diagram -- CAN -- .................................. 131 . TCM Circuit Inspection ......................................... 197 .
Check Sheet ........................................................ 132
. Display Control Unit Circuit Inspection ................. 198 .
CHECK SHEET RESULTS (EXAMPLE) .......... 134 . Front Air Control Circuit Inspection ...................... 198 .
CAN SYSTEM (TYPE 8) ........................................ 146 . Steering Angle Sensor Circuit Inspection ............. 199 .
Component Parts and Harness Connector Location 146 . Data Link Connector Circuit Inspection ................ 199 .
Schematic ............................................................ 146
. BCM Circuit Inspection ........................................ 200 .
Wiring Diagram -- CAN -- .................................. 146 . Combination Meter Circuit Inspection .................. 200 .
Check Sheet ........................................................ 147
. Transfer Control Unit Circuit Inspection ............... 201 .
CHECK SHEET RESULTS (EXAMPLE) .......... 149 . Driver Seat Control Unit Circuit Inspection .......... 202 .
CAN SYSTEM (TYPE 9) ........................................ 161 . ABS Actuator and Electric Unit (Control Unit) Circuit
Component Parts and Harness Connector Location 161 . Inspection ............................................................. 202
.
Schematic ............................................................ 161
. IPDM E/R Circuit Inspection ................................ 203 .
CAN Communication Circuit Inspection ............... 203 .
IPDM E/R Ignition Relay Circuit Inspection .......... 204 .

Revision: September 2005 LAN-2 2006 Pathfinder
PRECAUTIONS
[CAN]
PRECAUTIONS PFP:00001
A
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 B
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 C
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: D
q 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. E
q 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. F
q 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.
G
Precautions When Using CONSULT-II UKS0017J

When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
H
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.
I
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?

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