2008 INFINITI FX35 warning

TROUBLE DIAGNOSISLAN-51
< SERVICE INFORMATION > [CAN]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 6/TYPE 8
NOTE:
Refer to LAN-37, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
VDC OFF indicator lamp signal RT
VDC OFF switch signal T
VDC operation signal T
Front wiper stop position signal R T
High beam status signal R T
Hood switch signal R T
Low beam status signal R T
Rear window defogger control signal R R T Signal name/Connecting unit
ECM
4WD
DISP TCM
BCM
I-KEY
STRG M&AABS
ADP
IPDM-E
Signal name/Connecting unitECM
4WD
DISP ICC
TCM
BCM
I-KEY
LANE
STRG M&AABS
LASER
ADP
IPDM-E
A/C compressor feedback signal T R
A/C compressor request signal T R
Accelerator pedal position signal T R R R R
ASCD OD cancel request signal T R
ASCD operation signal T R
Battery voltage signal T R
Closed throttle position signal T R R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T RRRR RR
Engine status signal T R
Fuel consumption monitor signal TR
RT
ICC steering switch signal T R
Malfunction indicator lamp signal T R
Snow mode switch signal RT
TR
Wide open throttle position signal T R
AWD warning lamp signal T R
A/C switch/indicator signal TR
RT
System setting signal TR R
RT T
Buzzer output signal TR
TR
TR
ICC OD cancel request signal T R
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LAN-52
< SERVICE INFORMATION >[CAN]
TROUBLE DIAGNOSIS
ICC operation signal R T
ICC system display signal T R
ICC warning lamp signal T R
A/T CHECK indicator lamp signal T R
A/T self-diagnosis signal R T
Current gear position signal R T R
Manual mode indicator signal R T R
Output shaft revolution signal R R T R
P range signal R T R R
Shift position indicator signal R T R
Turbine revolution signal R R T
A/C switch signal R T
Blower fan motor switch signal R T
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal R T R R R R
Front fog light request signal T R
Front wiper request signal R T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signalRT
TR
Position light request signal R T R R
Rear window defogger switch signal T R
Run flat tire warning lamp signal T R
Sleep wake up signal TRRR
RT
Theft warning horn request signal T R
Tire pressure warning lamp signal T R
Turn indicator signal T R R
Alarm request signal R T
Back door open request signal R T
Door lock/unlock request signal R T
Ignition knob switch signal R T
Key warning signal T R
Power window open request signal R T
Steering angle sensor signal T R
Distance to empty signal R T Signal name/Connecting unit
ECM
4WD
DISP ICC
TCM
BCM
I-KEY
LANE
STRG M&A
ABS
LASER ADP
IPDM-E
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TROUBLE DIAGNOSISLAN-53
< SERVICE INFORMATION > [CAN]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Fuel level low warning signal R T
Fuel level sensor signal R T
Manual mode shift down signal R T
Manual mode shift up signal R T
Manual mode signal R T
Not manual mode signal R T
Parking brake switch signal R R T
Stop lamp switch signal R R T
Turn LED burnout status signal R T
Vehicle speed signalRR RRT
RRRRR T RR
A/T shift schedule change demand signal R T
ABS malfunction signal R T
ABS operation signal R T
ABS warning lamp signal RT
Brake warning lamp signal RT
SLIP indicator lamp signal RT
TCS malfunction signal R T
TCS operation signal R T
VDC malfunction signal R T
VDC OFF indicator lamp signal RT
VDC OFF switch signal R T
VDC operation signal R T
ICC sensor signal R T
Front wiper stop position signal R T
High beam status signal R T
Hood switch signal R T
Low beam status signal R T
Rear window defogger control signal R R T Signal name/Connecting unit
ECM
4WD
DISP ICC
TCM
BCM
I-KEY
LANE
STRG M&AABS
LASER
ADP
IPDM-E
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LT-2
HEADLAMP AIMING CONTROL ......................61
Schematic ............................................................ ...61
Wiring Diagram - H/AIM - .......................................62
Removal and Installation ........................................64
Switch Circuit Inspection ........................................65
FRONT FOG LAMP ...........................................66
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
66
System Description .................................................66
CAN Communication System Description ..............67
CAN Communication Unit .......................................67
Wiring Diagram - F/FOG - ......................................68
Terminal and Reference Value for BCM .................69
Terminal and Reference Value for IPDM E/R .........70
How to Proceed with Trouble Diagnosis .................71
Preliminary Check ..................................................71
CONSULT-III Functions (BCM) ..............................72
CONSULT-III Functions (IPDM E/R) ......................72
Front Fog Lamps Do Not Illuminate (Both Sides) ...72
Front Fog Lamp Does Not Illuminate (One Side) ...74
Aiming Adjustment ..................................................75
Bulb Replacement ..................................................76
Removal and Installation ........................................76
TURN SIGNAL AND HAZARD WARNING
LAMPS ...............................................................
78
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
78
System Description .................................................78
CAN Communication System Description ..............80
CAN Communication Unit .......................................80
Schematic ...............................................................81
Wiring Diagram - TURN - ........................................82
Terminal and Reference Value for BCM .................84
Terminal and Reference Value for Rear Combina-
tion Lamp Control Unit ............................................
86
How to Proceed with Trouble Diagnosis .................88
Preliminary Check ..................................................88
CONSULT-III Functions (BCM) ..............................89
Turn Signal Lamp Does Not Operate .....................90
Rear Turn Signal Lamp Does Not Operate ............92
Hazard Warning Lamp Does Not Operate But
Turn Signal Lamp Operates ...................................
94
Bulb Replacement (Front Turn Signal Lamp) .........95
Bulb Replacement (Rear Turn Signal Lamp) ..........95
Removal and Installation of Front Turn Signal
Lamp .......................................................................
95
Removal and Installation of Rear Turn Signal
Lamp .......................................................................
95
Removal and Installation of Rear Combination
Lamp Control Unit ...................................................
95
LIGHTING AND TURN SIGNAL SWITCH .........96
Removal and Installation ..................................... ...96
HAZARD SWITCH .............................................97
Removal and Installation ..................................... ...97
COMBINATION SWITCH ..................................98
Wiring Diagram - COMBSW - .............................. ...98
Combination Switch Reading Function ...................98
Terminal and Reference Value for BCM .................99
CONSULT-III Functions (BCM) .............................103
Combination Switch Inspection .............................104
Removal and Installation .......................................107
STOP LAMP .....................................................108
Component Parts and Harness Connector Loca-
tion ....................................................................... .
108
System Description ...............................................108
Schematic .............................................................109
Wiring Diagram - STOP/L - ...................................110
Terminal and Reference Value for Rear Combina-
tion Lamp Control Unit ......................................... .
112
Stop Lamp Does Not Operate ...............................112
High-Mounted Stop Lamp .....................................114
Stop Lamp .............................................................115
Rear Combination Lamp Control Unit ...................115
BACK-UP LAMP ............................................ ..116
Wiring Diagram - BACK/L - .................................. .116
Bulb Replacement .................................................117
Removal and Installation .......................................117
PARKING, LICENSE PLATE AND TAIL
LAMPS ..............................................................
118
Component Parts and Harness Connector Loca-
tion ....................................................................... .
118
System Description ...............................................118
CAN Communication System Description ............120
CAN Communication Unit .....................................120
Schematic .............................................................121
Wiring Diagram - TAIL/L - .....................................122
Terminal and Reference Value for BCM ...............126
Terminal and Reference Value for IPDM E/R .......127
Terminal and Reference Value for Rear Combina-
tion Lamp Control Unit ......................................... .
128
How to Proceed with Trouble Diagnosis ...............128
Preliminary Check .................................................128
CONSULT-III Functions (BCM) .............................129
CONSULT-III Functions (IPDM E/R) .....................129
Parking, License Plate and Side Marker Lamps
Do Not Illuminate ..................................................
129
Tail Lamp Does Not Operate ................................133
Parking, License Plate, Side Maker and Tail
Lamps Do Not Turn OFF (After Approx. 10 Min-
utes) ......................................................................
134
License Plate Lamp ..............................................135
Front Parking Lamp ..............................................135
Tail Lamp ..............................................................135
Front Side Marker Lamp .......................................135
Rear Side Marker Lamp ........................................136
Rear Combination Lamp Control Unit ...................136
REAR COMBINATION LAMP ..........................137
Bulb Replacement ................................................ .137
Removal and Installation .......................................137
INTERIOR ROOM LAMP ..................................138
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LT-4
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612924
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
General Precaution for Service OperationINFOID:0000000001328264
 Never work with wet hands.
 Xenon headlamp includes high voltage generating part. Be sure to disconnect battery negative cable (negative terminal) or power
fuse before removing, installing, or touching the xenon headlamp
(including lamp bulb).
 Turn the lighting switch OFF before disconnecting and connecting the connector.
 When turning the xenon headlamp on and while it is illuminated, never touch the harness, bulb, and socket of the headlamp.
 When checking the headlamp on/off operation, check it on vehicle
and with the power connected to the vehicle-side connector.
 Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not touch the headl amp bulb just after the headlamp is turned off, because
it is very hot.
 Install the xenon headlamp bulb socket co rrectly. If it is installed improperly, high-voltage leak or corona dis-
charge may occur that can melt the bulb, connecto r, and housing. Do not illuminate the xenon headlamp
bulb out of the headlamp housing. Doing so can cause fire and harm your eyes.
 When the bulb has burned out, wrap it in a thick vinyl bag and discard. Do not break the bulb.
 Leaving the bulb removed from the headlamp housing for a long period of time can deteriorate the perfor- mance of the lens and reflector (dirt, clouding). Al ways prepare a new bulb and have it on hand when replac-
ing the bulb.
 When adjusting the headlamp aiming, turn the aiming adjus tment screw only in the tightening direction. (If it
is necessary to loosen the screw, first fully loosen the screw, and then turn it in the tightening direction.)
 Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
PKID0793E
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LT-78
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
TURN SIGNAL AND HAZARD WARNING LAMPS
Component Parts and Harn ess Connector LocationINFOID:0000000001328343
System DescriptionINFOID:0000000001328344
OUTLINE
Power is supplied at all times
 through 50A fusible link (letter M, located in fuse and fusible link block)
 to BCM terminal 55,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 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.
When ignition switch is in 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 ignition switch is in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
 to rear combination lamp control unit terminal 7
 through grounds E21, E50 and E51,
 to BCM terminals 49 and 52, and
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85.
TURN SIGNAL OPERATION
LH Turn Signal Lamp
PKIC9692E
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TURN SIGNAL AND HAZARD WARNING LAMPSLT-79
< SERVICE INFORMATION >
C
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G H
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M A
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When the turn signal switch is moved to the left positi on, 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 from BCM terminal 45 to rear co mbination 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 the unified meter and A/C amp. through CAN communication, 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 combi-
nation meter. And then unified meter and A/C amp. ends turn LED burnout status signal to BCM through CAN
communication lines for speeding up turn signal blinking.
RH Turn Signal Lamp
When the turn signal switch is moved to right position, BCM output turn signal from BCM terminal 46, interpret-
ing 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 co mbination 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 the unified meter and A/C amp. through CAN communication, 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 combi-
nation meter. And then unified meter and A/C amp. ends turn LED burnout status signal to BCM through CAN
communication lines for speeding up turn signal blinking.
HAZARD LAMP OPERATION
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 RH and LH terminals 4.
Turn signal lamp turns ON
 through front combination lamp RH and LH terminals 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.
And hazard switch is depr essed, ground is supplied
 to hazard switch terminal 2
 through BCM terminal 29,
 to grounds M35, M45 and M85
 through hazard switch terminal 1.
BCM sends signal to the unified meter and A/C amp. through CAN communication, and turns ON turn signal
indicator lamp with combination meter.
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LT-80
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
When rear turn signal lamp (LED) does not turn ON, rear combination lamp control unit sends s\
ignal to combi-
nation meter. And then unified meter and A/C amp. ends turn LED burnout status signal to BCM through CAN
communication lines for speeding up turn signal blinking.
REMOTE CONTROL ENTRY SYSTEM OPERATION
When the remote control entry system is triggered by i nput from key fob, 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 RH and LH terminals 4.
Turn signal lamp turns ON
 through front combination lamp RH and LH terminals 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 the unified meter and A/C amp. through the CAN communication, and turns ON turn sig-
nal indicator lamp with combination meter.
With power and input supplied, BCM controls the flashing of hazard warning lamps when key fob is used to
activate remote control entry system.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
CAN Communication System DescriptionINFOID:0000000001328345
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 s peed 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 CA N 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 UnitINFOID:0000000001328346
Refer to LAN-43, "CAN System Specification Chart".
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