2006 INFINITI FX35 Intelligent key system

PRECAUTIONS GI-3
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Revision: 2006 December 2006 FX35/FX45
PRECAUTIONSPFP:00001
DescriptionNAS0005V
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NAS0005W
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 Necessary for Steering Wheel Rotation After Battery DisconnectNAS0005Y
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.

CONSULT-II CHECKING SYSTEM GI-37
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Revision: 2006 December 2006 FX35/FX45
CONSULT-II CHECKING SYSTEMPFP:00000
DescriptionNAS0006J

CONSULT-II is a hand-held type tester. When it is connected with a diagnostic connector equipped on the
vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various
kinds of diagnostic tests.

Refer to “CONSULT-II Software Operation Manual” for more information.
Function and System Application NAS0006K
x: Applicable
*:IVIS (NATS) INFINITI Vehicle Immobilizer System (Nissan Anti-theft System)
NOTE:
This item is indicated, but it is what it does not use.
Diagnostic test
mode Function
ENGINE
A/T
AIR BAG
REARVIEW CAMERA
METER A/C AMP BCM
AUTO DRIVE POS.
ABS (Including VDC) IVIS (NATS)*
IPDM E/R ICC
ALL MODE AWD/4WD INTELLIGENT KEY LDW
Work support This mode enables a technician to adjust some devices
faster and more accurately by following the indications on
CONSULT-II. x - - x - xxx -- x- xx
Self-diagnostic
results Self-diagnostic results can be read and erased quickly. x x x - x x x x x x x x x x
Trouble diagnos-
tic record Current self-diagnostic results and all trouble diagnostic
records previously stored can be read. --x-----------
Data monitor Input/Output data in the ECU can be read. x x - x x x x x - x x x x x
CAN diagnosis
support monitor The condition of CAN communication line can be read. x x - - x x x x - x x x x x
Active test Diagnostic Test Mode in which CONSULT-II drives some
actuators apart from the ECUs and also shifts some param-
eters in a specified range. x- -- - xxx -xxxxx
DTC & SRT con-
firmation The results of SRT (System Readiness Test) and the self-
diagnosis status/result can be confirmed. x- -- ----------
DTC work sup-
port The operating condition to confirm Diagnosis Trouble
Codes can be selected. xx-- ----------
ECU (ECM/TCM)
part number ECU (ECM/TCM) part number can be read. x x - x - x x x - - x x x x
ECU discrimi-
nated No. Classification number of a replacement ECU can be read to
prevent an incorrect ECU from being installed. -- x- ----------
Function test This mode can show results of self-diagnosis of ECU with
either 'OK' or 'NG'. For engines, more practical tests
regarding sensors/switches and/or actuators are available. xxx- ---x------
Control unit ini-
tialization All registered ignition key IDs in NATS components can be
initialized and new IDs can be registered. -- -- - - - - x- - - - -
Configuration
Note— -----x------- -
Pin read Individual control unit number can be read.
For future information, refer to “CONSULT-II operation
manual NATS-IVIS/NVIS” -- -- - - - - x- - - - -

GI-44
TOW TRUCK TOWING
Revision: 2006 December 2006 FX35/FX45
TOW TRUCK TOWINGPFP:00000
Tow Truck TowingNAS0006T
CAUTION:

All applicable state or Provincial (in Canada) laws and local laws regarding the towing operation
must be obeyed.

It is necessary to use proper towing equipment to avoid possible damage to the vehicle during
towing operation. Towing is in accordance with Towing Procedure Manual at dealer.

Always attach safety chains before towing.

When towing, make sure that the transmission, steering system and powertrain are in good order.
If any unit is damaged, dollies must be used.

Never tow an automatic transmission model from the rear (that is backward) with four wheels on
the ground. This may cause serious and expensive damage to the transmission.
2WD MODELS
INFINITI recommends that vehicle be towed with the driving (rear) wheels off the ground or that a dolly be
used as illustrated.
CAUTION:

Never tow automatic transmission models with the rear wheels on the ground or four wheels on
the ground (forward or backward), as this may cause serious and expensive damage to the trans-
mission.
If it is necessary to tow the vehicle with the front wheels raised, always use towing dollies under
the rear wheels.

When towing rear wheel drive models with the front wheels on the ground or on towing dollies:
–Turn the ignition key to the OFF position, and secure the steering wheel in a straight ahead posi-
tion with a rope or similar device.Never secure the steering wheel by turning the ignition key to the
LOCK position. This may damage the steering lock mechanism.
–Move the selector lever to the N (Neutral) position.

When the battery of vehicle equipped with the Intelligent Key system is discharged, your vehicle
should be towed with the front wheels on towing dollies or place the vehicle on a flat bed truck.
If the speed or distance must necessarily be greater, remove the propeller shaft before towing to prevent dam-
age to the transmission.
PAIA0097E

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
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SECTION LAN
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LAN
Revision: 2006 December 2006 FX35/FX45
LAN SYSTEM
CAN
PRECAUTIONS ..................................................... ..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions When Using CONSULT-II ................ ..... 3
CHECK POINTS FOR USING CONSULT-II .... ..... 3
Precautions For Trouble Diagnosis ..................... ..... 3
CAN SYSTEM .................................................. ..... 3
Precautions For Harness Repair ......................... ..... 4
CAN SYSTEM .................................................. ..... 4
TROUBLE DIAGNOSES WORK FLOW ............... ..... 5
When Displaying CAN Communication System
Errors .................................................................. ..... 5
WHEN A MALFUNCTION IS DETECTED BY
CAN COMMUNICATION SYSTEM .................. ..... 5
WHEN A MALFUNCTION IS DETECTED
EXCEPT CAN COMMUNICATION SYSTEM ... ..... 5
TROUBLE DIAGNOSIS FLOW CHART .......... ..... 6
Diagnosis Procedure ........................................... ..... 7
SELECTING CAN SYSTEM TYPE (HOW TO
USE SPECIFICATION TABLE) ........................ ..... 7
ACQUISITION OF DATA BY CONSULT-II ....... ..... 8
HOW TO USE CHECK SHEET TABLE ........... ..... 9
CAN Diagnostic Support Monitor ........................ ... 16
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR ECM ............................ ... 16
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR TCM ............................ ... 17
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR AWD CONTROL UNIT ... 18
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR ICC UNIT .................... ... 19
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR INTELLIGENT KEY UNIT ... 20
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR BCM ............................ ... 21
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR LDW CAMERA UNIT ...
... 22
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR UNIFIED METER AND A/
C AMP. .............................................................. ... 23
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT) ................ ... 24
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR DRIVER SEAT CON-
TROL UNIT ...................................................... ... 24
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR IPDM E/R .................... ... 25
DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR DISPLAY CONTROL
UNIT ................................................................. ... 26
CAN COMMUNICATION ........................................ ... 27
System Description .............................................. ... 27
Component Parts and Harness Connector Location ... 27
Schematic ............................................................ ... 28
Wiring Diagram — CAN — .................................. ... 29
CAN Communication Unit .................................... ... 32
TYPE 1/TYPE 2 ................................................ ... 33
TYPE 3 ............................................................. ... 36
TYPE 4/TYPE 5 ................................................ ... 40
TYPE 6 ............................................................. ... 44
CAN SYSTEM (TYPE 1) ........................................ ... 49
Component Parts and Harness Connector Location ... 49
Schematic ............................................................ ... 49
Wiring Diagram — CAN — .................................. ... 49
Check Sheet ........................................................ ... 50
CHECK SHEET RESULTS (EXAMPLE) .......... ... 52
CAN SYSTEM (TYPE 2) ........................................ ... 69
Component Parts and Harness Connector Location ... 69
Schematic ............................................................ ... 69
Wiring Diagram — CAN — .................................. ... 69
Check Sheet ........................................................ ... 70
CHECK SHEET RESULTS (EXAMPLE) .......... ... 73
CAN SYSTEM (TYPE 3) ........................................ ... 91
Component Parts and Harness Connector Location ... 91
Schematic ............................................................ ... 91

LAN-2Revision: 2006 December 2006 FX35/FX45 Wiring Diagram — CAN — ..................................
... 91
Check Sheet ........................................................ ... 92
CHECK SHEET RESULTS (EXAMPLE) .......... ... 96
CAN SYSTEM (TYPE 4) ........................................ .117
Component Parts and Harness Connector Location .117
Schematic ............................................................ .117
Wiring Diagram — CAN — .................................. .117
Check Sheet ........................................................ .118
CHECK SHEET RESULTS (EXAMPLE) .......... .121
CAN SYSTEM (TYPE 5) ........................................ .139
Component Parts and Harness Connector Location .139
Schematic ............................................................ .139
Wiring Diagram — CAN — .................................. .139
Check Sheet ........................................................ .140
CHECK SHEET RESULTS (EXAMPLE) .......... .144
CAN SYSTEM (TYPE 6) ........................................ .163
Component Parts and Harness Connector Location .163
Schematic ............................................................ .163
Wiring Diagram — CAN — .................................. .163
Check Sheet ........................................................ .164
CHECK SHEET RESULTS (EXAMPLE) .......... .168
TROUBLE DIAGNOSIS FOR SYSTEM ................. .190
Inspection Between TCM and Data Link Connector
Circuit .................................................................. .190
Inspection Between Data Link Connector and Uni- fied Meter and A/C Amp. Circuit ..........................
.190
Inspection Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit)
Circuit ................................................................... .190
Inspection Between ABS Actuator and Electric Unit
(Control Unit) and Driver Seat Control Unit Circuit .191
ECM Circuit Inspection ........................................ .192
TCM Circuit Inspection ......................................... .193
Display Control Unit Circuit Inspection ................. .193
AWD Control Unit Circuit Inspection .................... .194
ICC Unit Circuit Inspection ................................... .194
Intelligent Key Unit Circuit Inspection .................. .195
Data Link Connector Circuit Inspection ................ .195
BCM Circuit Inspection ........................................ .196
Steering Angle Sensor Circuit Inspection ............. .196
LDW Camera Unit Circuit Inspection ................... .197
Unified Meter and A/C Amp. Circuit Inspection .... .197
ICC Sensor Circuit Inspection .............................. .198
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ............................................................. .198
Driver Seat Control Unit Circuit Inspection .......... .199
IPDM E/R Circuit Inspection ................................ .199
CAN Communication Circuit Inspection ............... .200
IPDM E/R Ignition Relay Circuit Inspection .......... .201

LAN-20
[CAN]
TROUBLE DIAGNOSES WORK FLOW
Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR INTELLIGENT KEY UNIT
Display Results (Present)

OK: Normal

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.

–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)

OK: Normal

0: There is malfunction now.

1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0 →1→ 2...38 →39 after returning to the
normal condition whenever IGN OFF →ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0
when malfunction is detected again in the process.

—: Undiagnosed
SKIB2359E
“SELECT SYSTEM” screen “CAN DIAG SUP-
PORT MNTR” screen Description Present Past
INTELLIGENT KEY TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1 – 39/—
ECM Make sure of normal reception from ECM. OK/UNKWN/–
METER/M&A Make sure of normal reception from unified meter and
A/C amp. OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–

TROUBLE DIAGNOSES WORK FLOW LAN-21
[CAN]
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Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR BCM
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
SKIB0593E
“SELECT SYSTEM”
screen “CAN DIAG SUPPORT
MNTR” screen Description Present
BCM INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
IPDM E/R Make sure of normal reception from IPDM E/R. OK/UNKWN
METER/M&A Make sure of normal reception from unified meter and A/C amp. OK/UNKWN
I-KEY Make sure of normal reception from Intelligent Key unit.
(Not available for CAN system diagnosis.) OK

TROUBLE DIAGNOSES WORK FLOW LAN-23
[CAN]
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LAN
Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR UNIFIED METER AND A/C
AMP.
Display Results (Present)

OK: Normal

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.

—: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)

OK: Normal

0: There is malfunction now.

1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0 →1→ 2...38 →39 after returning to the
normal condition whenever IGN OFF →ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0
when malfunction is detected again in the process.

—: Undiagnosed
PKIB5986E
“SELECT SYSTEM” screen “CAN DIAG SUP-
PORT MNTR”
screen Description Present Past
METER A/C AMP TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1 – 39/—
ECM Make sure of normal reception from ECM. OK/UNKWN/–
TCM Make sure of normal reception from TCM. OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–
VDC/TCS/ABS Make sure of normal reception from ABS actuator
and electric unit (control unit). OK/UNKWN/–
IPDM E/R IPDM E/R is not diagnosed. –
DISPLAY Make sure of normal reception from display control
unit. OK/UNKWN/–
I-KEY Make sure of normal reception from Intelligent Key
unit. OK/UNKWN/–
EPS EPS is not diagnosed. –
AWD/4WD Make sure of normal reception from AWD control
unit. OK/UNKWN/–
e4WD e4WD is not diagnosed. –
ICC Make sure of normal reception from ICC unit. OK/UNKWN/–
LANE KEEP LANE KEEP is not diagnosed. –
TIRE-P Make sure of normal reception from BCM.
(Not available for CAN system diagnosis.) OK/UNKWN