2006 INFINITI FX35 sensor

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

TROUBLE DIAGNOSES WORK FLOW LAN-5
[CAN]
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Revision: 2006 December 2006 FX35/FX45
TROUBLE DIAGNOSES WORK FLOWPFP:00004
When Displaying CAN Communication System ErrorsNKS00349
WHEN A MALFUNCTION IS DETECTED BY CAN COMMUNICATION SYSTEM

CAN communication line is open. (CAN-H, CAN-L, or both)

CAN communication line is shorted. (Ground, between CAN lines, or other harnesses)

The areas related to CAN communication of unit is malfunctioning.
WHEN A MALFUNCTION IS DETECTED EXCEPT CAN COMMUNICATION SYSTEM

Removal and installation of parts: When the units that perform CAN communication or the sensors related
to CAN communication are removed and installed, malfunction may be detected (or DTC other than CAN
communication may be detected).

Fuse blown out (removed): CAN communication of the unit may be stopped at such time.

Low voltage: If the voltage decreases because of battery discharge when IGN is ON, malfunction may be
detected by self-diagnosis according to the units.

TROUBLE DIAGNOSES WORK FLOW LAN-19
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Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ICC UNIT
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
PKIB5985E
“SELECT SYSTEM” screen “CAN DIAG SUP-
PORT MNTR”
screen Description Present
ICC 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
VDC/TCS/ABS Make sure of normal reception from ABS actuator and electric unit
(control unit). OK/UNKWN
TCM Make sure of normal reception from TCM. OK/UNKWN
METER/M&A METER/M&A is not diagnosed. UNKWN
LANE KEEP LANE KEEP is not diagnosed. UNKWN
ECM(l) Make sure of normal reception from ECM (as a laser radar sensor).
(Not available for CAN system diagnosis.) OK/UNKWN
ICC SENSOR Make sure of normal reception from ICC sensor. OK/UNKWN
STRG STRG is not diagnosed. UNKWN
METER/M&A(l) Make sure of normal reception from combination meter (as a laser
radar sensor).
(Not available for CAN system diagnosis.) OK/UNKWN
ERROR(l) Make sure that the initial diagnosis and transmit diagnosis of laser
radar sensor work normally.
(Not available for CAN system diagnosis.) OK/UNKWN
LANE DETECTOR LANE DETECTOR is not diagnosed. UNKWN
TCM(l) TCM(l) is not diagnosed. UNKWN
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN

LAN-24
[CAN]
TROUBLE DIAGNOSES WORK FLOW
Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR DRIVER SEAT CONTROL UNIT
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
SKIB2442E
“SELECT SYSTEM”
screen “CAN DIAG SUPPORT
MNTR” screen Description Present
ABS 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
TCM Make sure of normal reception from TCM. OK/UNKWN
METER/M&A METER/M&A is not diagnosed. UNKWN
STRG Make sure of normal reception from steering angle sensor. OK/UNKWN
ICC ICC is not diagnosed. UNKWN
AWD/4WD Make sure of normal reception from AWD control unit. OK/UNKWN
SKIB2360E
“SELECT SYSTEM” screen “CAN DIAG SUPPORT
MNTR” screen Description Present
AUTO DRIVE POS. INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN
METER/M&A Make sure of normal reception from unified meter and A/C amp. OK/UNKWN
TCM Make sure of normal reception from TCM. 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

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