key INFINITI FX35 2006 Service Manual

TROUBLE DIAGNOSES WORK FLOW LAN-23
[CAN]
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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

CAN COMMUNICATION LAN-27
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Revision: 2006 December 2006 FX35/FX45
CAN COMMUNICATIONPFP:23710
System DescriptionNKS0034C
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.
Component Parts and Harness Connector LocationNKS003MM
1. AWD control unit M92 (AWD mod-
els) 2. ICC unit M88 (with ICC system) 3. ECM M90
4. IPDM E/R E9 5. ICC sensor E39 (with ICC system) 6. Display control unit M76
7. Unified meter and A/C amp. M55 8. Steering angle sensor M14 9. Intelligent Key unit M34 (with Intelli- gent Key system)
10. ABS actuator and electric unit E56 (control unit) 11. BCM M3 12. Data link connector M5
13. LDW camera unit R9 (with Lane departure warning system) 14. Driver seat control unit B152 15. A/T assembly F44
PKIC9643E

LAN-32
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
CAN Communication UnitNKS0034D
Go to CAN system, when selecting your CAN system type from the following table.
× : Applicable
NOTE:
Confirming the presence of the following items helps to identify CAN system type.

Models with ICC system

Models with lane departure warning system

Models with Intelligent Key system
Body type Wagon
Axle 2WD AWD
Engine VQ35DE VQ35DE/VK45DE
Transmission A/T
Brake control VDC
ICC system ××
Lane departure warning system ××
Intelligent Key system ×× ××
CAN system type 12 3456
CAN system trouble diagnosis LAN-49
LAN-69LAN-91LAN-117LAN-139LAN-163
PBIB3255E
PKIC9661E
PKIC9662E

CAN COMMUNICATION LAN-33
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Revision: 2006 December 2006 FX35/FX45
TYPE 1/TYPE 2
System Diagram

Ty pe 1

Ty pe 2
Input/Output Signal Chart
T: Transmit R: Receive
PKIC9663E
PKIC9635E
Signals ECM TCM Dis-
play
control unit Intelli-
gent Key unit BCM St e e r-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and
electric unit
(con-
trol
unit) Driver
seat
control unit IPDM
E/R
A/C compressor feedback sig-
nal TR
A/C compressor request signal T R
Accelerator pedal position sig-
nal TR R
ASCD CRUISE lamp signal T R
ASCD OD cancel request sig-
nal TR

LAN-34
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request sig-
nal T
R
Engine coolant temperature
signal TR
Engine speed signal T R R R R
Engine status signal T R
Fuel consumption monitor sig-
nal TR
RT
Malfunctioning indicator lamp
signal TR
Wide open throttle position sig-
nal TR
A/T CHECK indicator lamp sig-
nal TR
A/T self-diagnosis signal R T
Current gear position signal T R
Manual mode indicator signal T R
Output shaft revolution signal R T
P range signal T R R
Shift position indicator signal T R
Turbine revolution signal R T
A/C switch/indicator signal TR
RT
System setting signal TR R
RT T
Alarm request signal T R
Back door open request signal T R
Door lock/unlock request signal T R
Ignition knob switch signal T R
Key warning signal T R
Power window open request
signal TR
Sleep wake up signal TR R
TR
Buzzer output signal TR
TR
A/C switch signal R T Signals ECM TCM
Dis-
play
control unit Intelli-
gent
Key unit BCM Steer-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and
electric
unit
(con- trol
unit) Driver
seat
control unit IPDM
E/R

CAN COMMUNICATION LAN-35
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Revision: 2006 December 2006 FX35/FX45
Blower fan motor switch signal R T
Day time running light request
signal TR
Door lock/unlock status signal R T
Door switch signal R R T R R R
Front fog light request signal T R
Front wiper request signal 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
Position light request signal T R R
Theft warning horn request sig-
nal TR
Turn indicator signal T R
Oil pressure switch signal RT
TR
Steering angle sensor signal T R
Distance to empty signal R T
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
Snow mode switch signal R T
Stop lamp switch signal R T
Turn LED burnout status signal R T
Vehicle speed signal RT
RRRRR T R
A/T shift schedule change
demand signal RT
ABS operation signal T
ABS warning lamp signal RT
Brake warning lamp signal R T
SLIP indicator lamp signal R T
TCS operation signal T
VDC OFF indicator lamp signal R T Signals ECM TCM
Dis-
play
control unit Intelli-
gent
Key unit BCM St e e r-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and
electric
unit
(con- trol
unit) Driver
seat
control unit IPDM
E/R

LAN-36
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
TYPE 3
System Diagram

Ty p e 3
Input/Output Signal Chart
T: Transmit R: Receive
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 RR R T
Signals ECM TCM
Dis-
play
control unit Intelli-
gent
Key unit BCM Steer-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and
electric
unit
(con- trol
unit) Driver
seat
control unit IPDM
E/R
PKIB4200E
Signals ECM TCM Dis-
play
con- trol
unit ICC
unit Intelli-
gent Key
unit BCM St e e r-
ing
angle sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen- sor ABS
actu- ator
and
elec- tric
unit
(con- trol
unit) Driver
seat
con- trol
unit IPDM
E/R
A/C compressor feed-
back signal TR
A/C compressor request
signal T
R
Accelerator pedal posi-
tion signal TR R R
ASCD OD cancel
request signal TR

CAN COMMUNICATION LAN-37
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Revision: 2006 December 2006 FX35/FX45
ASCD operation signal T R
Battery voltage signal T R
Closed throttle position
signal TR R
Cooling fan speed
request signal T
R
Engine coolant tempera-
ture signal TR
Engine speed signal T R R R R R
Engine status signal T R
Fuel consumption moni-
tor signal TR
RT
ICC steering switch sig-
nal TR
Malfunctioning indicator
lamp signal TR
Wide open throttle posi-
tion signal TR
Snow mode switch signal RT
TR
A/T CHECK indicator
lamp signal TR
A/T self-diagnosis signal R T
Current gear position sig-
nal TR R
Manual mode indicator
signal TR R
Output shaft revolution
signal RT R R
P range signal T R R R
Shift position indicator
signal TR R
Turbine revolution signal R T R
A/C switch/indicator sig-
nal TR
RT
System setting signal TR R
RT T
ICC OD cancel request
signal RT
ICC operation signal R T
ICC system display sig-
nal TR
Signals ECM TCM
Dis-
play
con-
trol
unit ICC
unit Intelli-
gent Key unit BCM Ste er-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R

LAN-38
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
ICC warning lamp signal T R
Buzzer output signal TR
TR
TR
Alarm request signal T R
Back door open request
signal TR
Door lock/unlock request
signal TR
Ignition knob switch sig-
nal TR
Key warning signal T R
Power window open
request signal TR
Sleep wake up signal TR R
TR
A/C switch signal R T
Blower fan motor switch
signal RT
Day time running light
request signal TR
Door lock/unlock status
signal RT
Door switch signal R R T R R R
Front fog light request
signal TR
Front wiper request sig-
nal RT R
High beam request sig-
nal TR R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock sig-
nal TR
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Position light request sig-
nal TR R
Rear window defogger
switch signal TR
Theft warning horn
request signal TR
Signals ECM TCM
Dis-
play
con-
trol
unit ICC
unit Intelli-
gent Key unit BCM St e e r-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R

CAN COMMUNICATION LAN-39
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Revision: 2006 December 2006 FX35/FX45
Tire pressure signal T R
Turn indicator signal T R R
Oil pressure switch sig-
nal RT
TR
Steering angle sensor
signal TR
Distance to empty signal R T
Fuel level low warning
signal RT
Fuel level sensor signal R T
Manual mode shift down
signal RT
Manual mode shift up
signal RT
Manual mode signal R T
Not manual mode signal R T
Parking brake switch sig-
nal RT
Stop lamp switch signal R T
Turn LED burnout status
signal RT
Vehicle speed signal RRRT
RRRRR TRR
ICC sensor signal R T
A/T shift schedule
change demand signal R
T
ABS malfunction signal R T
ABS operation signal R T
ABS warning lamp signal R T
Brake warning lamp sig-
nal RT
SLIP indicator lamp sig-
nal 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
Front wiper stop position
signal RT
Signals ECM TCM
Dis-
play
con-
trol
unit ICC
unit Intelli-
gent Key unit BCM Ste er-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R