steering INFINITI M35 2006 Factory Service Manual

LAN-4Revision: 2006 January2006 M35/M45 AV Control Unit Circuit Inspection .........................405
Data Link Connector Circuit Inspection ................405
RAS Control Unit Circuit Inspection ......................406
Pre-Crash Seat Belt Control Unit Circuit Inspection .406
Driver Seat Control Unit Circuit Inspection ...........407
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection .............................................................407
IPDM E/R Circuit Inspection .................................408
CAN Communication Circuit Inspection ................409
IPDM E/R Ignition Relay Circuit Inspection ..........416
CAN SYSTEM (TYPE 9) .........................................417
Component Parts and Harness Connector Location .417
Schematic .............................................................418
Wiring Diagram — CAN — ...................................419
Check Sheet .........................................................423
CHECK SHEET RESULTS (EXAMPLE) ...........426
Inspection Between TCM and Data Link Connector
Circuit ...................................................................447
Inspection Between Data Link Connector and RAS
Control Unit Circuit ...............................................448
Inspection Between RAS Control Unit and Pre-
Crash Seat Belt Control Unit Circuit .....................449
Inspection Between Pre-Crash Seat Belt Control
Unit and Driver Seat Control Unit Circuit ..............449
Inspection Between Driver seat control unit and ABS
Actuator and Electric Unit (Control Unit) Circuit ....450
ECM Circuit Inspection .........................................450
TCM Circuit Inspection .........................................451
AFS Control Unit Circuit Inspection ......................452
BCM Circuit Inspection .........................................452
Low Tire Pressure Warning Control Unit Circuit
Inspection .............................................................453
Steering Angle Sensor Circuit Inspection .............453
Intelligent Key Unit Circuit Inspection ...................454
Unified Meter and A/C Amp. Circuit Inspection ....454
NAVI Control Unit Circuit Inspection .....................455
Data Link Connector Circuit Inspection ................455
RAS Control Unit Circuit Inspection ......................456
Pre-Crash Seat Belt Control Unit Circuit Inspection .456
Driver Seat Control Unit Circuit Inspection ...........457
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection .............................................................457
IPDM E/R Circuit Inspection .................................458
CAN Communication Circuit Inspection ................459
IPDM E/R Ignition Relay Circuit Inspection ..........466
CAN SYSTEM (TYPE 10) .......................................467
Component Parts and Harness Connector Location .467
Schematic .............................................................468
Wiring Diagram — CAN — ...................................469
Check Sheet .........................................................473
CHECK SHEET RESULTS (EXAMPLE) ...........476
Inspection Between TCM and Data Link Connector
Circuit ...................................................................500
Inspection Between Data Link Connector and RAS
Control Unit Circuit ...............................................501
Inspection Between RAS Control Unit and Pre-
Crash Seat Belt Control Unit Circuit .....................502
Inspection Between Pre-Crash Seat Belt Control
Unit and Driver Seat Control Unit Circuit ..............502Inspection Between Driver Seat Control Unit and
ABS Actuator and Electric Unit (Control Unit) Circuit .503
Inspection Between ABS Actuator and Electric Unit
and ICC Sensor Integrated Unit Circuit .................504
ECM Circuit Inspection .........................................504
TCM Circuit Inspection ......................................... .505
AFS Control Unit Circuit Inspection ......................505
BCM Circuit Inspection .........................................506
LDW Camera Unit Circuit Inspection ....................506
Low Tire Pressure Warning Control Unit Circuit
Inspection ..............................................................507
Steering Angle Sensor Circuit Inspection ..............507
Intelligent Key Unit Circuit Inspection ...................508
Unified Meter and A/C Amp. Circuit Inspection .....508
NAVI Control Unit Circuit Inspection .....................509
Data Link Connector Circuit Inspection .................509
RAS Control Unit Circuit Inspection ......................510
Pre-Crash Seat Belt Control Unit Circuit Inspection .510
Driver Seat Control Unit Circuit Inspection ...........511
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ..............................................................511
ICC Sensor Integrated Unit Circuit Inspection ......512
IPDM E/R Circuit Inspection .................................512
CAN Communication Circuit Inspection ................513
IPDM E/R Ignition Relay Circuit Inspection ...........520
CAN SYSTEM (TYPE 11) ........................................521
Component Parts and Harness Connector Location .521
Schematic .............................................................522
Wiring Diagram — CAN — ...................................523
Check Sheet .........................................................526
CHECK SHEET RESULTS (EXAMPLE) ............529
Inspection Between TCM and Data Link Connector
Circuit ....................................................................546
Inspection Between Data Link Connector and Driver
Seat Control Unit Circuit .......................................547
Inspection Between Driver Seat Control Unit and
ABS Actuator and Electric Unit (Control Unit) Circuit .548
ECM Circuit Inspection .........................................549
TCM Circuit Inspection ......................................... .549
AWD Control Unit Circuit Inspection .....................550
BCM Circuit Inspection .........................................550
Low Tire Pressure Warning Control Unit Circuit
Inspection ..............................................................551
Steering Angle Sensor Circuit Inspection ..............551
Intelligent Key Unit Circuit Inspection ...................552
Unified Meter and A/C Amp. Circuit Inspection .....552
AV Control Unit Circuit Inspection .........................553
Data Link Connector Circuit Inspection ................
.553
Driver Seat Control Unit Circuit Inspection ...........554
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ..............................................................554
IPDM E/R Circuit Inspection .................................555
CAN Communication Circuit Inspection ................556
IPDM E/R Ignition Relay Circuit Inspection ...........563
CAN SYSTEM (TYPE 12) ........................................564
Component Parts and Harness Connector Location .564
Schematic .............................................................565
Wiring Diagram — CAN — ...................................566
Check Sheet .........................................................569

LAN-5
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45 CHECK SHEET RESULTS (EXAMPLE) ...........572
Inspection Between TCM and Data Link Connector
Circuit ...................................................................589
Inspection Between Data Link Connector and Driver
Seat Control Unit Circuit ......................................
.590
Inspection Between Driver Seat Control Unit and
ABS Actuator and Electric Unit (Control Unit) Circuit .591
ECM Circuit Inspection .........................................592
TCM Circuit Inspection .........................................592
AWD Control Unit Circuit Inspection ....................593
BCM Circuit Inspection .........................................593
Low Tire Pressure Warning Control Unit Circuit
Inspection .............................................................594
Steering Angle Sensor Circuit Inspection .............594
Intelligent Key Unit Circuit Inspection ...................595
Unified Meter and A/C Amp. Circuit Inspection ....595
NAVI Control Unit Circuit Inspection .....................596
Data Link Connector Circuit Inspection ................596
Driver Seat Control Unit Circuit Inspection ...........597
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection .............................................................597
IPDM E/R Circuit Inspection .................................598
CAN Communication Circuit Inspection ...............599
IPDM E/R Ignition Relay Circuit Inspection ..........606
CAN SYSTEM (TYPE 13) .......................................607
Component Parts and Harness Connector Location .607
Schematic ............................................................608
Wiring Diagram — CAN — ...................................609
Check Sheet .........................................................613
CHECK SHEET RESULTS (EXAMPLE) ...........616
Inspection Between TCM and Data Link Connector
Circuit ...................................................................636
Inspection Between Data Link Connector and Pre-
Crash Seat Belt Control Unit Circuit .....................637
Inspection Between Pre-Crash Seat Belt Control
Unit and Driver Seat Control Unit Circuit ..............638
Inspection Between Driver Seat Control Unit and
ABS Actuator and Electric Unit (Control Unit) Circuit .638
ECM Circuit Inspection .........................................639
TCM Circuit Inspection .........................................640
AWD Control Unit Circuit Inspection ....................640
AFS Control Unit Circuit Inspection ......................641
BCM Circuit Inspection .........................................641
Low Tire Pressure Warning Control Unit Circuit
Inspection .............................................................642
Steering Angle Sensor Circuit Inspection .............642
Intelligent Key Unit Circuit Inspection ...................643
Unified Meter and A/C Amp. Circuit Inspection ....643
AV Control Unit Circuit Inspection ........................644
Data Link Connector Circuit Inspection ................644
Pre-Crash Seat Belt Control Unit Circuit Inspection .645
Driver Seat Control Unit Circuit Inspection ...........645
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection .............................................................646
IPDM E/R Circuit Inspection .................................646
CAN Communication Circuit Inspection ...............647
IPDM E/R Ignition Relay Circuit Inspection ..........655
CAN SYSTEM (TYPE 14) .......................................656
Component Parts and Harness Connector Location .656Schematic .............................................................657
Wiring Diagram — CAN — ...................................658
Check Sheet .........................................................662
CHECK SHEET RESULTS (EXAMPLE) ...........665
Inspection Between TCM and Data Link Connector
Circuit ...................................................................685
Inspection Between Data Link Connector and Pre-
Crash Seat Belt Control Unit Circuit .....................686
Inspection Between Pre-Crash Seat Belt Control
Unit and Driver Seat Control Unit Circuit ..............687
Inspection Between Driver Seat Control Unit and
ABS Actuator and Electric Unit (Control Unit) Circuit .687
ECM Circuit Inspection .........................................688
TCM Circuit Inspection .........................................689
AWD Control Unit Circuit Inspection .....................689
AFS Control Unit Circuit Inspection ......................690
BCM Circuit Inspection .........................................690
Low Tire Pressure Warning Control Unit Circuit
Inspection .............................................................691
Steering Angle Sensor Circuit Inspection .............691
Intelligent Key Unit Circuit Inspection ...................692
Unified Meter and A/C Amp. Circuit Inspection ....692
NAVI Control Unit Circuit Inspection .....................693
Data Link Connector Circuit Inspection ................693
Pre-Crash Seat Belt Control Unit Circuit Inspection .694
Driver Seat Control Unit Circuit Inspection ...........694
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection .............................................................695
IPDM E/R Circuit Inspection .................................695
CAN Communication Circuit Inspection ...............696
IPDM E/R Ignition Relay Circuit Inspection ..........704
CAN SYSTEM (TYPE 15) .......................................705
Component Parts and Harness Connector Location .705
Schematic .............................................................706
Wiring Diagram — CAN — ...................................707
Check Sheet .........................................................711
CHECK SHEET RESULTS (EXAMPLE) ...........714
Inspection Between TCM and Data Link Connector
Circuit ...................................................................737
Inspection Between Data Link Connector and Pre-
Crash Seat Belt Control Unit Circuit .....................738
Inspection Between Pre-Crash Seat Belt Control
Unit and Driver Seat Control Unit Circuit ..............739
Inspection Between Driver Seat Control Unit and
ABS Actuator and Electric Unit (Control Unit) Circuit .739
Inspection Between ABS Actuator and Electric Unit
and ICC Sensor Integrated Unit Circuit ................740
ECM Circuit Inspection .........................................741
TCM Circuit Inspection .........................................741
AWD Control Unit Circuit Inspection .....................742
AFS Control Unit Circuit Inspection ......................742
BCM Circuit Inspection .........................................743
LDW Camera Unit Circuit Inspection ....................743
Low Tire Pressure Warning Control Unit Circuit
Inspection .............................................................744
Steering Angle Sensor Circuit Inspection .............744
Intelligent Key Unit Circuit Inspection ...................745
Unified Meter and A/C Amp. Circuit Inspection ....745
NAVI Control Unit Circuit Inspection .....................746

LAN-22
[CAN]
TROUBLE DIAGNOSES WORK FLOW
Revision: 2006 January2006 M35/M45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR AFS CONTROL 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 012...3839 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
PKIB9800E
“SELECT SYSTEM”
screen“CAN DIAG SUPPORT
MNTR” screenDescription Present Past
ADAPTIVE LIGHTTRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1~39/– ECM Make sure of normal reception from ECM. OK/UNKWN/–
METER/M&AMake sure of normal reception from unified
meter and A/C amp.OK/UNKWN/–
TCM Make sure of normal reception from TCM. OK/UNKWN/–
STRGMake sure of normal reception from steering
angle sensor. OK/UNKWN/–
IPDM E/R Make sure of normal reception from IPDM E/R. OK/UNKWN/–

TROUBLE DIAGNOSES WORK FLOW
LAN-29
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR RAS CONTROL 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 012...3839 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
PKIB9803E
“SELECT SYSTEM”
screen“CAN DIAG SUP-
PORT MNTR”
screenDescription Present Past
RAS/HICASTRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1~39/– ECM Make sure of normal reception from ECM. OK/UNKWN/–
VDC/TCS/ABSMake sure of normal reception from ABS actuator and
electric unit (control unit).OK/UNKWN/–
STRG Make sure of normal reception from steering angle sensor. OK/UNKWN/–

TROUBLE DIAGNOSES WORK FLOW
LAN-31
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
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.
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.
SKIB2360E
“SELECT SYSTEM”
screen“CAN DIAG SUPPORT
MNTR” screenDescription Present
AUTO DRIVE POS.INITIAL DIAG Make sure that microcomputer in ECU works normally.OK/NG
TRANSMIT DIAG TRANSMIT DIAG is not diagnosed. OK
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
PKIB9794E
“SELECT SYSTEM”
screen“CAN DIAG SUPPORT
MNTR” screenDescription Present
ABSINITIAL 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 Make sure of normal reception from ICC sensor integrated unit. OK/UNKWN
AWD/4WD Make sure of normal reception from AWD control unit. OK/UNKWN
RAS Make sure of normal reception from RAS control unit. OK/UNKWN

LAN-40
[CAN]
CAN COMMUNICATION
Revision: 2006 January2006 M35/M45
INPUT/OUTPUT SIGNAL CHART
2WD models
T: Transmit R: Receive
Signals
ECM
TCM
AFS control unit*1
BCM
LDW camera unit*2
Low tire pressure warning control unit
Steering angle sensor
Intelligent Key unit
Unified meter and A/C amp.
AV (NAVI) control unit
RAS control unit*3
Pre-crash seat belt control unit*4
Driver seat control unit
ABS actuator and electric unit (control unit)
ICC sensor integrated unit*5
IPDM E/R
A/C compressor request signal TR
Accelerator pedal position signal T R R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request signal T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R R
Cooling fan speed request signal TR
Engine coolant temperature signal T R
Engine speed signal T R R R R R R
Engine status signal T R R R
Fuel consumption monitor signal T R R
ICC brake switch signal T R
ICC prohibition signal T R
ICC steering switch signal T R
Malfunctioning indicator lamp signal T R
Power generation command value signal TR
Wide open throttle position signal T R
A/T CHECK indicator lamp signal T R
A/T position indicator signal T R R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Manual mode indicator signal T R R
N range signal T R R
Output shaft revolution signal R T R R
P range signal T R R R R
R range signal T R R R
Turbine revolution signal R T R
AFS OFF indicator signal T R
A/C switch signal R T
ACC signal T R R

CAN COMMUNICATION
LAN-41
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
Blower fan motor switch signal R T
Buzzer output signalTR
TR
RT
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal T R R R R R
Door unlock signal T R
Front fog light request signal T R R
Front wiper request signal T R R
High beam request signal T R R
Ignition switch ON signal T R R
Ignition switch signal T R R
Key ID signal T R
Key switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R R R
Starter request signal T R
Theft warning horn request signal T R
Trunk switch signal T R R
Turn indicator signal T R R
Tire pressure data signal T R
Tire pressure signal T R R
Steering angle sensor signal R T R R
Door lock/unlock trunk open request signal R T
Hazard and horn request signal R T
Key warning signalTR
Meter display signalTR
RT
Panic alarm request signal R T
Power window open request signal R T
A/C evaporator temperature signal R TSignals
ECM
TCM
AFS control unit*1
BCM
LDW camera unit*2
Low tire pressure warning control unit
Steering angle sensor
Intelligent Key unit
Unified meter and A/C amp.
AV (NAVI) control unit
RAS control unit*3
Pre-crash seat belt control unit*4
Driver seat control unit
ABS actuator and electric unit (control unit)
ICC sensor integrated unit*5
IPDM E/R

LAN-42
[CAN]
CAN COMMUNICATION
Revision: 2006 January2006 M35/M45
Distance to empty signalTR
Fuel level low warning signal T R
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 T
Seat belt buckle switch signal R T
Stop lamp switch signalRT
TR
TR
Target A/C evaporator temperature signal R T
A/C switch/indicator signalRT
TR
System setting signalRT R
TR T
RAS signalTR
A/T shift schedule change demand signal R T
ABS malfunction signalTR
ABS operation signal TR
ABS warning lamp signal R T
Brake pressure control signalTR
Brake warning lamp signal R T
Side G sensor signal R T
SLIP indicator lamp signal R T
TCS malfunction signalTR
TCS operation signal TR
VDC malfunction signalTR
VDC OFF indicator lamp signal R T
VDC OFF switch signalTR
VDC operation signalTR
Vehicle speed signalRR R R R T R
RRRR R T R RR R Signals
ECM
TCM
AFS control unit*1
BCM
LDW camera unit*2
Low tire pressure warning control unit
Steering angle sensor
Intelligent Key unit
Unified meter and A/C amp.
AV (NAVI) control unit
RAS control unit*3
Pre-crash seat belt control unit*4
Driver seat control unit
ABS actuator and electric unit (control unit)
ICC sensor integrated unit*5
IPDM E/R

CAN COMMUNICATION
LAN-43
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
*1:with AFS model only
*2:with LDW model only
*3:with RAS model only
*4:with pre-crash seat belt model only
*5:with ICC model only Deceleration degree commandment value signalRT
ICC OD cancel request signal R T
ICC operation signal R T
ICC warning lamp signalRT
Front wiper stop position signal R T
High beam status signal RT
Hood switch signal R T
Low beam status signal R R T
Oil pressure switch signalRT
TR
Rear window defogger control signal R R T
Starter relay status signal R TSignals
ECM
TCM
AFS control unit*1
BCM
LDW camera unit*2
Low tire pressure warning control unit
Steering angle sensor
Intelligent Key unit
Unified meter and A/C amp.
AV (NAVI) control unit
RAS control unit*3
Pre-crash seat belt control unit*4
Driver seat control unit
ABS actuator and electric unit (control unit)
ICC sensor integrated unit*5
IPDM E/R

LAN-44
[CAN]
CAN COMMUNICATION
Revision: 2006 January2006 M35/M45
AW D m o del s
T: Transmit R: Receive
Signals
ECM
TCM
AWD control unit
AFS control unit*1
BCM
LDW camera unit*2
Low tire pressure warning control unit
Steering angle sensor
Intelligent Key unit
Unified meter and A/C amp.
AV (NAVI) control unit
Pre-crash seat belt control unit*3
Driver seat control unit
ABS actuator and electric unit (control unit)
ICC sensor integrated unit*4
IPDM E/R
A/C compressor request signal TR
Accelerator pedal position signal T R R R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request signal T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R R
Cooling fan speed request signal TR
Engine coolant temperature signal T R
Engine speed signal T R R R R R R
Engine status signal T R R R
Fuel consumption monitor signal T R R
ICC brake switch signal T R
ICC prohibition signal T R
ICC steering switch signal T R
Malfunctioning indicator lamp signal T R
Power generation command value signal TR
Wide open throttle position signal T R
A/T CHECK indicator lamp signal T R
A/T position indicator signal T R R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Manual mode indicator signal T R R
N range signal T R R
Output shaft revolution signal R T R R
P range signal T R R R R
R range signal T R R R
Turbine revolution signal R T R
AWD signal T R
AWD warning lamp signal T R
AFS OFF indicator signal T R
A/C switch signal R T