warning INFINITI FX35 2004 Service Manual

LAN-248
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2004 November 2004 FX35/FX45
CAN Communication Circuit CheckAKS00C2X
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side,
control unit side, unit side, sensor side, meter side and harness side).
–ECM
–A/T assembly
–Display control unit
–AWD control unit
–Low tire pressure warning control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–IPDM E/R
–Between ECM and IPDM E/R
–Between ECM and A/T assembly
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.

CAN SYSTEM (TYPE 6)
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2. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–ECM connector
–Harness connector M82
–Display control unit connector
–Low tire pressure warning control unit connector
–AWD control unit connector
–ICC unit connector
–Intelligent Key unit connector
–BCM connector
–Steering angle sensor connector
–Unified meter and A/C amp. connector
–Harness connector M41
2. Check continuity between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> GO TO 3.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between data link connector and ECM

Harness between data link connector and harness
connector M82

Harness between data link connector and display control unit

Harness between data link connector and low tire pressure warning control unit

Harness between data link connector and AWD control unit

Harness between data link connector and ICC unit

Harness between data link connector and Intelligent Key unit

Harness between data link connector and BCM

Harness between data link connector and steering angle sensor

Harness between data link connector and unified meter and A/C amp.

Harness between data link connector and harness connector M41 6 (L) - 14 (R) : Continuity should not exist.
SKIA6868E

LAN-250
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2004 November 2004 FX35/FX45
3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector M5 terminals 6 (L), 14
(R) and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between data link connector and ECM

Harness between data link connector and harness
connector M82

Harness between data link connector and display control unit

Harness between data link connector and low tire pressure warning control unit

Harness between data link connector and AWD control unit

Harness between data link connector and ICC unit

Harness between data link connector and Intelligent Key unit

Harness between data link connector and BCM

Harness between data link connector and steering angle sensor

Harness between data link connector and unified meter and A/C amp.

Harness between data link connector and harness connector M41
4. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect A/T assembly connector.
2. Check continuity between A/T assembly harness connector F44
terminals 3 (L) and 8 (R).
OK or NG
OK >> GO TO 5.
NG >> Repair harness between A/T assembly and harness
connector F102.
5. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between A/T assembly harness connector F44 ter-
minals 3 (L), 8 (R) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness between A/T assembly and harness
connector F102. 6 (L) - Ground : Continuity should not exist.
14 (R) - Ground : Continuity should not exist.
SKIA6874E
3 (L) - 8 (R) : Continuity should not exist.
SKIA6866E
3 (L) - Ground : Continuity should not exist.
8 (R) - Ground : Continuity should not exist.
SKIA6875E

LT-2Revision: 2004 November 2004 FX35/FX45Preliminary Check .................................................. 46
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 46
INSPECTION PARKING BRAKE SWITCH CIR-
CUIT .................................................................... 47
CONSULT-II Functions ........................................... 48
CONSULT-II BASIC OPERATION ....................... 48
DATA MONITOR .................................................. 49
ACTIVE TEST ..................................................... 50
Daytime Light Control Does Not Operate Properly ... 51
Aiming Adjustment .................................................. 53
Bulb Replacement .................................................. 53
Removal and Installation ........................................ 53
Disassembly and Assembly .................................... 53
AUTO LIGHT SYSTEM ............................................. 54
Component Parts and Harness Connector Location ... 54
System Description ................................................. 54
OUTLINE ............................................................. 54
COMBINATION SWITCH READING FUNCTION ... 55
EXTERIOR LAMP BATTERY SAVER CONTROL ... 55
DELAY TIMER FUNCTION ................................. 55
CAN Communication System Description .............. 55
CAN Communication Unit ....................................... 55
Major Components and Functions .......................... 55
Schematic ............................................................... 56
Wiring Diagram — AUTO/L — ................................ 57
Terminals and Reference Values for BCM .............. 60
Terminals and Reference Values for IPDM E/R ...... 61
How to Proceed With Trouble Diagnosis ................ 62
Preliminary Check .................................................. 62
SETTING CHANGE FUNCTIONS ....................... 62
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 62
CONSULT-II Functions (BCM) ................................ 63
CONSULT-II BASIC OPERATION ....................... 64
WORK SUPPORT ............................................... 64
DATA MONITOR .................................................. 65
ACTIVE TEST ..................................................... 66
CONSULT-II Functions (IPDM E/R) ........................ 66
CONSULT-II OPERATION ................................... 66
SELF-DIAGNOSTIC RESULTS ........................... 67
DATA MONITOR .................................................. 67
ACTIVE TEST ..................................................... 68
Trouble Diagnosis Chart by Symptom .................... 68
Lighting Switch Inspection ...................................... 69
Optical Sensor System Inspection .......................... 69
Removal and Installation for Optical Sensor ........... 71
REMOVAL ........................................................... 71
INSTALLATION .................................................... 71
HEADLAMP AIMING CONTROL .............................. 72
Schematic ............................................................... 72
Wiring Diagram — H/AIM — ................................... 73
Removal and Installation ........................................ 76
REMOVAL ........................................................... 76
INSTALLATION .................................................... 76
Switch Circuit Inspection ........................................ 76
FRONT FOG LAMP .................................................. 77
Component Parts and Harness Connector Location ... 77
System Description ................................................. 77OUTLINE ............................................................. 77
COMBINATION SWITCH READING FUNCTION ... 78
EXTERIOR LAMP BATTERY SAVER CONTROL ... 78
CAN Communication System Description .............. 78
CAN Communication Unit ....................................... 78
Wiring Diagram — F/FOG — .................................. 79
Terminals and Reference Values for BCM .............. 81
Terminals and Reference Values for IPDM E/R ...... 82
How to Proceed With Trouble Diagnosis ................ 82
Preliminary Check ................................................... 82
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................... 82
CONSULT-II Functions ........................................... 83
Front Fog Lamps Do Not Illuminate (Both Sides) ... 84
Front Fog Lamp Does Not Illuminate (One Side) .... 86
Aiming Adjustment .................................................. 87
Bulb Replacement ................................................... 88
Removal and Installation ......................................... 88
REMOVAL ............................................................ 88
INSTALLATION .................................................... 88
TURN SIGNAL AND HAZARD WARNING LAMPS ... 89
Component Parts and Harness Connector Location ... 89
System Description ................................................. 89
OUTLINE ............................................................. 89
TURN SIGNAL OPERATION ............................... 89
HAZARD LAMP OPERATION ............................. 90
REMOTE CONTROL ENTRY SYSTEM OPER-
ATION .................................................................. 91
COMBINATION SWITCH READING FUNCTION ... 92
CAN Communication System Description .............. 92
CAN Communication Unit ....................................... 92
Schematic ............................................................... 93
Wiring Diagram — TURN — ................................... 94
Terminals and Reference Values for BCM .............. 97
How to Proceed With Trouble Diagnosis ................ 98
Preliminary Check ................................................... 99
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................... 99
CONSULT-II Functions .........................................100
CONSULT-II BASIC OPERATION .....................100
DATA MONITOR ................................................101
ACTIVE TEST ....................................................101
Turn Signal Lamp Does Not Operate ....................102
Rear Turn Signal Lamp Does Not Operate ...........103
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ............................................105
Turn Signal Indicator Lamp Does Not Operate .....107
Bulb Replacement (Front Turn Signal Lamp) ........107
Bulb Replacement (Rear Turn Signal Lamp) ........107
Removal and Installation of Front Turn Signal Lamp .107
Removal and Installation of Rear Turn Signal Lamp .107
Removal and Installation of Rear Combination
Lamp Control Unit .................................................107
REMOVAL ..........................................................107
INSTALLATION ..................................................107
LIGHTING AND TURN SIGNAL SWITCH ..............108
Removal and Installation .......................................108
REMOVAL ..........................................................108
INSTALLATION ..................................................108

PRECAUTIONS
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PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007KP
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.

HEADLAMP - XENON TYPE -
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Ground is supplied

to headlamp RH terminal 7

through grounds E21, E50 and E51

to headlamp LH terminal 7

through grounds E21, E50 and E51.
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp that received the high beam request signal by BCM across the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT- 5 4 , "System Description" in “AUTO LIGHT SYSTEM”.
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-181, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type headlamp is adopted to the low and high beam headlamps. Xenon bulbs do not use a filament.
Instead, they produce light when a high voltage current is passed between two tungsten electrodes through a
mixture of xenon (an inert gas) and certain other metal halides. In addition to added lighting power, electronic
control of the power supply gives the headlamps stable quality and tone color.
Following are some of the many advantages of the xenon type headlamp.

The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

The light features a high relative spectral distribution at wavelengths to which the human eye is most sen-
sitive. This means that even in the rain, more light is reflected back from the road surface toward the vehi-
cle, for added visibility.

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionAKS007MB
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080S
Refer to LAN-6, "CAN Communication Unit" .

TURN SIGNAL AND HAZARD WARNING LAMPS
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Component Parts and Harness Connector LocationAKS007O6
System DescriptionAKS007CW
OUTLINE
Power is supplied at all times

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM (body control module) terminal 55

through 15A fuse [No. 22, located in fuse block (J/B)]

to BCM (body control module) terminal 42

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8.
TURN SIGNAL OPERATION
When the ignition switch is in the ON or START position, power is supplied

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM (body control module) terminal 38

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 7.
When the ignition switch is in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM (body control module) terminal 11.
Ground is supplied

to BCM (body control module) terminals 49 and 52

through grounds M35, M45 and M85
PKIA6523E

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TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2004 November 2004 FX35/FX45

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
LH Turn
When the turn signal switch is moved to the left position, BCM output turn signal from BCM terminal 45, inter-
preting it as turn signal is ON.
Connected from BCM terminal 45 to front combination lamp LH terminal 4.
Turn signal lamp turns on

through front combination lamp LH terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminal 45 to rear combination lamp control unit terminal 4.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
RH Turn
When the turn signal switch is moved to the right position, BCM output turn signal from BCM terminal 46, inter-
preting it as turn signal is ON.
Connected from BCM terminal 46 to front combination lamp RH terminal 4.
Turn signal lamp turns on

through front combination lamp RH terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminal 46 to rear combination lamp control unit terminal 5.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
HAZARD LAMP OPERATION
Power is supplied at all times

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM terminal 55

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1.
Ground is supplied

through BCM terminals 49 and 52

to grounds M35, M45 and M85

TURN SIGNAL AND HAZARD WARNING LAMPS
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through rear combination lamp control unit terminal 7

to grounds E21, E50 and E51

through combination meter terminals 5, 6 and 15

to grounds M35, M45 and M85.
When the hazard switch is depressed, ground is supplied

through BCM terminal 29

to hazard switch terminal 2

through hazard switch terminal 1

to grounds M35, M45 and M85.
When the hazard switch is depressed, BCM output turn signal from BCM terminals 45 and 46, interpreting it as
turn signal is ON.
Connected from BCM terminal 45 and 46 to front combination lamp terminal 4.
Turn signal lamp turns on

through front combination lamp terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
REMOTE CONTROL ENTRY SYSTEM OPERATION
Power is supplied at all times

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM terminal 55

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
When the remote control entry system is triggered by input from the keyfob, BCM output turn signal from BCM
terminals 45 and 46, interpreting it as turn signal is ON.
Connected from BCM terminals 45 and 46 to front combination lamp terminal 4,
turn signal lamp turns on

through front combination lamp terminal 8

to grounds E21, E50 and E51.

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Revision: 2004 November 2004 FX35/FX45
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5,
rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps when keyfob is
used to activate the remote control entry system.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionAKS007CX
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080W
Refer to LAN-6, "CAN Communication Unit" .