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lan

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LAN SYSTEM

K ELECTRICAL

SECTION LAN LAN SYSTEM
B

E
CONTENTS
CAN IPDM E/R Ignition Relay Circuit Check ................. 38 . F
Component Inspection ........................................... 38 .
PRECAUTIONS ......................................................... 3 . ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
Precautions for Supplemental Restraint System TION ................................................................... 38
. G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CAN SYSTEM (TYPE 2) .......................................... 39 .
SIONER" ................................................................. 3
. System Description ................................................ 39 .
Precautions When Using CONSULT-II .................... 3 . Component Parts and Harness Connector Location 39 ...
CHECK POINTS FOR USING CONSULT-II ........ 3 . H
Schematic .............................................................. 40
.
Precautions For Trouble Diagnosis ......................... 3 . Wiring Diagram - CAN - ......................................... 41 .
CAN SYSTEM ...................................................... 3 . Work Flow .............................................................. 44
.
Precautions For Harness Repair ............................. 4 . CHECK SHEET .................................................. 45 . I
CAN SYSTEM ...................................................... 4 . CHECK SHEET RESULTS (EXAMPLE) ............ 47 .
CAN COMMUNICATION ........................................... 5 . Circuit Check Between Data Link Connector and
System Description ................................................. 5 . VDC/TCS/ABS Control Unit ................................... 56 . J
CAN Communication Unit ....................................... 5 . ECM Circuit Check ................................................ 57 .
TYPE 1 ................................................................. 5
. Data Link Connector Circuit Check ....................... 57 .
TYPE 2 ................................................................. 7
. Combination Meter Circuit Check .......................... 58 .
TYPE 3 ................................................................. 9
. LAN
BCM Circuit Check ................................................ 58 .
CAN SYSTEM (TYPE 1) ...........................................11 . Steering Angle Sensor Circuit Check .................... 59 .
System Description ................................................11 . VDC/TCS/ABS Control Unit Circuit Check ............ 59 .
Component Parts and Harness Connector Location ....11 IPDM E/R Circuit Check ........................................ 60 . L
Schematic ............................................................. 12
. CAN Communication Circuit Check ....................... 61 .
Wiring Diagram - CAN - ........................................ 13 . IPDM E/R Ignition Relay Circuit Check ................. 63 .
Work Flow ............................................................. 16
. Component Inspection ........................................... 63 . M
CHECK SHEET .................................................. 17 . ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
CHECK SHEET RESULTS (EXAMPLE) ............ 19 . TION ................................................................... 63
.
Circuit Check Between TCM and Data Link Con- CAN SYSTEM (TYPE 3) .......................................... 64 .
nector .................................................................... 30
. System Description ................................................ 64 .
Circuit Check Between Data Link Connector and Component Parts and Harness Connector Location 64 ...
VDC/TCS/ABS Control Unit .................................. 31 . Schematic .............................................................. 65
.
ECM Circuit Check ................................................ 32 . Wiring Diagram - CAN - ......................................... 66 .
TCM Circuit Check ................................................ 32 . Work Flow .............................................................. 69
.
Data Link Connector Circuit Check ....................... 33 . CHECK SHEET .................................................. 70 .
Combination Meter Circuit Check ......................... 33 . CHECK SHEET RESULTS (EXAMPLE) ............ 72 .
BCM Circuit Check ................................................ 34 . Circuit Check Between TCM and Data Link Con-
Steering Angle Sensor Circuit Check .................... 34 . nector ..................................................................... 84
.
VDC/TCS/ABS Control Unit Circuit Check ............ 35 . Circuit Check Between Data Link Connector and
IPDM E/R Circuit Check ........................................ 35 . VDC/TCS/ABS Control Unit ................................... 85 .
CAN Communication Circuit Check ...................... 36 . ECM Circuit Check ................................................ 86 .
AWD Control Unit Circuit Check ............................ 86 .

LAN-1
TCM Circuit Check ................................................ 87
. IPDM E/R Circuit Check .........................................90 .
Data Link Connector Circuit Check ........................ 87 . CAN Communication Circuit Check .......................90 .
Combination Meter Circuit Check .......................... 88 . IPDM E/R Ignition Relay Circuit Check ..................93 .
BCM Circuit Check ................................................ 88
. Component Inspection ...........................................93 .
Steering Angle Sensor Circuit Check .................... 89 . ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
VDC/TCS/ABS Control Unit Circuit Check ............ 89 . TION ...................................................................93
.

LAN-2
PRECAUTIONS
[CAN]
PRECAUTIONS
[CAN] PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS00AAG

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 AKS00A8N

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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