Lan system INFINITI FX35 2004 Service Manual

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ALPHABETICAL INDEX
LT-73
Headlining - See Roof trim .................................. EI-42
Heated oxygen sensor 1 (bank 1) .... EC-205, EC-214,
EC-226
, EC-433, EC-439, EC-863, EC-872, EC-884,
EC-1103
, EC-1109
Heated oxygen sensor 1 (bank 2) .... EC-205, EC-214,
EC-226
, EC-433, EC-439, EC-863, EC-872, EC-884,
EC-1103
, EC-1109
Heated oxygen sensor 1 heater (bank 1) ....... EC-149,
EC-806
Heated oxygen sensor 1 heater (bank 2) ....... EC-149,
EC-806
Heated oxygen sensor 2 (bank 1) .... EC-236, EC-245,
EC-446
, EC-457, EC-894, EC-903, EC-1116, EC-1127
Heated oxygen sensor 2 (bank 2) .... EC-236, EC-245,
EC-446
, EC-457, EC-894, EC-903, EC-1116, EC-1127
Heated oxygen sensor 2 heater (bank 1) ....... EC-157,
EC-814
Heated oxygen sensor 2 heater (bank 2) ....... EC-157,
EC-814
Heated seat ....................................................... SE-98
Heater and cooling unit (Heater core) ........... ATC-126
HFC134a (R134a) system precaution ............... ATC-5
HFC134a (R134a) system service procedure ATC-137
HFC134a (R134a) system service tools .......... ATC-18
HFC134a system service equipment precaution ..........
ATC-13
High & low reverse clutch solenoid valve ....... AT-164,
AT-166
Hood ................................................................... BL-14
Horn ................................................................. WW-56
HORN - Wiring diagram ................................... WW-56
HSEAT - Wiring diagram ................................... SE-99
I
IATS - Wiring diagram ....................... EC-182
, EC-839
ICC - Wiring diagram ....................................... ACS-20
ICC/BS - Wiring diagram ................. EC-524, EC-1191
ICC/SW - Wiring diagram ................ EC-510, EC-1176
ICCBOF - Wiring diagram ................ EC-616, EC-1294
Idle air volume learning ....................... EC-49, EC-698
Idle mixture ratio .................................. EC-38, EC-687
Idle speed ............................................ EC-38, EC-687
Idle speed control (ISC) .... EC-392, EC-394, EC-1048,
EC-1050
Ignition coil ....................................... EC-585, EC-1262
Ignition coil(VK45DE) ...................................... EM-185
Ignition coil(VQ35DE) ........................................ EM-42
Ignition control system ..................... EC-585, EC-1262
Ignition key hole illumination ............................. LT-153
Ignition timing ...................................... EC-38, EC-687
IGNSYS - Wiring diagram ................ EC-586, EC-1263
Illumination control ............................................ LT-197
In vehicle sensor ........................... ATC-107, ATC-118
INF/D - Wring diagram ....................................... AV-63
INJECT - Wiring diagram ................. EC-598, EC-1275
Injector ............................................. EC-597, EC-1274
Input clutch solenoid valve ................. AT-152, AT-154
Instrument panel ................................................. IP-10
Intake air temperature sensor ........... EC-180, EC-200,
EC-837
, EC-858
Intake door control linkage adjustment ............ ATC-78
Intake door motor ............................ ATC-76, ATC-124
Intake manifold(VK45DE) ............................... EM-174
Intake manifold(VQ35DE) ................................. EM-24
Intake sensor ................................ ATC-113, ATC-120
Intake valve timing control (Bank 1) ... EC-145, EC-795
Intake valve timing control (Bank 2) ... EC-145, EC-795
Intake valve timing control position sensor (Bank 1) ....
EC-1095
Intake valve timing control position sensor (Bank 2) ....
EC-1095
Intake valve timing control solenoid valve (Bank 1) ......
EC-408
, EC-1070
Intake valve timing control solenoid valve (Bank 2) ......
EC-408
, EC-1070
Integrated homelink transmitter ....................... BL-228
Intelligent cruise control (ICC) system .............. ACS-6
Interior ................................................................. EI-37
Interior lamp ...................................................... LT-157
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-18
IVCB1 - Wiring diagram .... EC-409, EC-798, EC-1071
IVCB2 - Wiring diagram .... EC-411, EC-800, EC-1073
IVCSB1 - Wiring diagram ............................... EC-1096
IVCSB2 - Wiring diagram ............................... EC-1098
IVIS (Infiniti vehicle immobilizer system) precautions ...
GI-3
J
Joint connector (J/C) .......................................... PG-76
K
Knock sensor (KS) ............................. EC-297
, EC-955
KS - Wiring diagram ........................... EC-298, EC-956
L
LAN system circuit ........................................... ATC-66
Laser beam aiming adjustment ....................... ACS-12
Latch (lower anchors and tether for children) system ...
SB-11
Line pressure solenoid valve ........................... AT-127
Line pressure test (A/T) ..................................... AT-52
Liquid gasket application ................................... LU-21
Liquid gasket application(VQ35DE) EM-6, LU-3, CO-3
Location of electrical units ................................. PG-70
Low coast brake solenoid valve ......... AT-168, AT-170
Low tire pressure warning system ...................... WT-7
Lubricant (R134a) A/C ........................ ATC-7, ATC-27
Lubrication circuit (engine)(VK45DE) ................ LU-23
Lubrication circuit (engine)(VQ35DE) .................. LU-5
Lubrication oil A/C .......................................... ATC-161

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ALPHABETICAL INDEX
Propeller shaft ..................................................... PR-6
Propeller shaft on vehicle service ........................ PR-6
Propeller shaft vibration ....................................... PR-6
PS/SEN - Wiring diagram ................ EC-397, EC-1053
R
R/VIEW - Wiring diagram ................................... DI-84
Radiator(VK45DE) ............................................. CO-39
Radiator(VQ35DE) ............................................ CO-14
Rear axle ........................................................... RAX-5
Rear bumper ........................................................ EI-18
Rear combination lamp removal and installation ..........
LT-147
Rear door ............................................ BL-148, GW-80
Rear seat ......................................................... SE-107
Rear suspension ............................................... RSU-5
Rear view monitor ............................................... DI-81
Rear washer .................................................... WW-35
Rear window defogger ...................................... GW-86
Rear wiper ....................................................... WW-35
Refrigerant connection precaution ..................... ATC-8
Refrigerant discharging evacuating charging ATC-137
Refrigerant general precaution .......................... ATC-7
Refrigerant lines ............................................ ATC-137
Refrigerant pressure sensor ........... EC-609, EC-1287,
ATC-90
, ATC-155
Refrigeration cycle ........................................... ATC-21
Removal and installation (A/T) ........... AT-266, AT-269
Removal and installation (Transfer) .................... TF-43
Revolution sensor (A/T) ...................... AT-116, AT-260
Ring gear diff. inspection ................................. RFD-13
Rocker cover(VK45DE) ................................... EM-193
Rocker cover(VQ35DE) ..................................... EM-51
Room lamp - See Interior lamp ......................... LT-157
ROOM/L - Wiring diagram ................................ LT-164
RP/SEN - Wiring diagram ................ EC-610, EC-1288
S
Seal - See Exterior .............................................. EI-28
SEAT - Wiring diagram ...................................... SE-95
Seat belt inspection ............................................. SB-8
Seat belt pre-tensioner disposal ...................... SRS-49
Seat belt, front ..................................................... SB-4
Seat, rear ......................................................... SE-107
Self-diagnosis (Transfer) .................................... TF-21
SEN/PW - Wiring diagram ............... EC-490, EC-1157
SHIFT - Wiring diagram ................................... AT-236
Shift change signal ........................................ EC-1218
Shift lock system .............................................. AT-235
Shift schedule .................................................. AT-348
Shock absorber (rear) ....................................... RSU-9
Side air bag (satellite) sensor .......................... SRS-46
Side bearing preload diff. ................................. RFD-20
Side curtain air bag .......................................... SRS-43
Side flange installation diff. .............................. RFD-10
Side trim .............................................................. EI-37
SMJ (super multiple junction) ............................ PG-79
Spark plug replacement .................................... MA-26
Spark plug replacement(VQ35DE) ................... MA-19
Spark plug(VK45DE) ...................................... EM-186
Spark plug(VQ35DE) ........................................ EM-43
Specification value ............................. EC-131, EC-780
Speedometer ........................................................ DI-4
Spiral cable ..................................................... SRS-38
Spot lamp .......................................................... LT-184
SROOF - Wiring diagram ..................... BL-167, RF-14
SRS - See Supplemental Restraint System ..... SRS-5
SRS Trouble diagnoses .................................... SRS-7
Stabilizer bar (rear) ......................................... RSU-16
Stall test (A/T) .................................................... AT-51
Standardized relay ............................................. PG-81
START - Wiring diagram .................................... SC-11
Starter ................................................................ SC-10
Starting system .................................................. SC-10
Steering gear and linkage inspection ................ MA-35
Steering linkage ................................................. PS-19
Steering wheel and column ................... PS-10, PS-12
Steering wheel turning force .............................. PS-10
Step lamp .......................................................... LT-124
Stop lamp .......................................................... LT-116
Stop lamp switch .............................. EC-550, EC-1220
STOP/L - Wiring diagram .................................. LT-118
Sun roof, electric ................................................ RF-10
Sunload sensor ............................. ATC-110, ATC-119
Sunroof .................................................. RF-10, RF-25
Supplemental Restraint System ....................... SRS-5
Suspension ....................................................... MA-36
Symbols and abbreviations ...................... GI-10, GI-23
T
Tachometer ........................................................... DI-4
TCM circuit diagram ........................................... AT-50
TCM inspection table ......................................... AT-90
Thermostat(VK45DE) ....................................... CO-51
Thermostat(VQ35DE) ....................................... CO-26
Three way catalyst function (Bank 1) . EC-316, EC-971
Three way catalyst function (Bank 2) . EC-316, EC-971
Three way catalyst precautions ............................ GI-6
Three way catalyst(VK45DE) .......................... EM-178
Three way catalyst(VQ35DE) ........................... EM-26
Throttle control motor ....................... EC-428, EC-1090
Throttle control motor relay .............. EC-423, EC-1085
Throttle position sensor (TPS) .......... EC-190, EC-284,
EC-485
, EC-487, EC-569, EC-848, EC-942, EC-1152,
EC-1154
, EC-1239
Tie-rod ............................................................... PS-19
Timing chain(VK45DE) ................................... EM-196
Timing chain(VQ35DE) ..................................... EM-63
Tire rotation ............................................. WT-6, MA-34
Tooth contact diff. ........................................... RFD-24
Top tether strap child restraint ........................... SB-12
Torque converter installation AT-267, AT-268, AT-272
Torque convertor clutch solenoid valve AT-123, AT-125
TPS1 - Wiring diagram ...................... EC-286, EC-944
TPS2 - Wiring diagram ...................... EC-192, EC-850

IDX-8
ALPHABETICAL INDEX
TPS3 - Wiring diagram .................... EC-571, EC-1241
Transfer control unit inspection table ................. TF-19
Transverse link (front) ...................................... FSU-14
TRNSCV - Wiring diagram ............................... BL-228
Trouble diagnoses .............................................. GI-11
Turbine revolution sensor ................................ AT-143
TURN - Wiring diagram ...................................... LT-94
Turn signal lamp ................................................. LT-89
Tyre pressure monitoring system - trouble diagnoses ..
WT-10
Tyre pressure monitoring system - wiring diagram .......
WT-11
U
Unified meter and A/C amp. ............................... DI-28
V
Vacuum hose (brake system) ............................ BR-18
Vacuum hose drawing (Engine control) ............. EC-30
Valve clearance(VK45DE) .............................. EM-214
Valve clearance(VQ35DE) ................................ EM-89
Valve guide ..................................................... EM-105
Valve guide(VK45DE) ..................................... EM-231
Valve lifter(VK45DE) ....................................... EM-211
Valve lifter(VQ35DE) ........................................ EM-86
Valve seat(VK45DE) ......................... EM-232, EM-233
Valve seat(VQ35DE) ...................................... EM-107
Valve spring(VK45DE) ...................... EM-234, EM-235
Valve spring(VQ35DE) ................................... EM-108
Vanity mirror lamp ............................................. LT-149
Variable induction air control system (VIAS) . EC-1254
VDC -Wiring diagram ...................................... BRC-17
Vehicle security (theft warning) system ........... BL-181
Vehicle speed sensor (VSS) ........... EC-390, EC-1046,
EC-1216
VEHSEC - Wiring diagram ............................... BL-187
VENT/V - Wiring diagram .. EC-344, EC-504, EC-999,
EC-1170
VIAS - Wiring diagram ................................... EC-1256
W
WARN - Wiring diagram ..................................... DI-40
Warning chime .................................................... DI-55
Warning lamps .................................................... DI-39
Washer, front ..................................................... WW-4
Washer, rear .................................................... WW-35
Water control valve(VK45DE) ........................... CO-51
Water pump(VK45DE) ...................................... CO-49
Water pump(VQ35DE) ...................................... CO-22
Water temperature gauge ..................................... DI-4
Wheel alignment (front) ..................................... FSU-6
Wheel alignment (rear) ..................................... RSU-5
Wheel balance ........................................ WT-5, MA-32
Wheel bearing (front) ........................... FAX-4, FAX-10
Wheel bearing (rear) ......................................... RAX-5
Wheel hub (front) ................................. FAX-4, FAX-10
Wheel hub (rear) ............................................... RAX-5
Wheel sensor (VDC) ....................................... BRC-57
WINDOW - Wiring diagram .............................. GW-24
Window, door ...................................... GW-76, GW-80
Windshield ....................................................... GW-11
WIP/R - Wiring diagram ................................... WW-37
WIPER - Wiring diagram .................................. WW-11
Wiper, front ........................................................ WW-4
Wiper, rear ....................................................... WW-35
Wiring Diagram (Cell code) list ......................... PG-67
Wiring diagrams .................................................. GI-15
WT-T/WARN - Wiring diagram .......................... WT-11

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
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SECTION LAN
A
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LAN
Revision: 2004 November 2004 FX35/FX45
LAN SYSTEM
CAN
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions When Using CONSULT-II ..................... 4
CHECK POINTS FOR USING CONSULT-II ......... 4
Precautions For Trouble Diagnosis .......................... 4
CAN SYSTEM ....................................................... 4
Precautions For Harness Repair .............................. 5
CAN SYSTEM ....................................................... 5
CAN COMMUNICATION ............................................ 6
System Description .................................................. 6
CAN Communication Unit ........................................ 6
TYPE 1/TYPE2 ..................................................... 6
TYPE 3 .................................................................. 9
TYPE 4/TYPE5 ................................................... 13
TYPE 6 ................................................................ 16
CAN SYSTEM (TYPE 1) ........................................... 21
System Description ................................................ 21
Component Parts and Harness Connector Location ... 21
Wiring Diagram - CAN - ......................................... 22
Work Flow .............................................................. 24
CHECK SHEET ................................................... 26
CHECK SHEET RESULTS (EXAMPLE) ............. 28
Circuit Check Between TCM and Data Link Con-
nector ..................................................................... 41
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. .................................. 41
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) ... 42
ECM Circuit Check ................................................. 42
TCM Circuit Check ................................................. 43
Display Unit Circuit Check ...................................... 43
Data Link Connector Circuit Check ........................ 44
BCM Circuit Check ................................................. 44
Steering Angle Sensor Circuit Check ..................... 45
Unified Meter and A/C Amp. Circuit Check ............ 45
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ..................................................................... 46IPDM E/R Circuit Check ......................................... 46
CAN Communication Circuit Check ........................ 47
IPDM E/R Ignition Relay Circuit Check .................. 51
Component Inspection ............................................ 51
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION .................................................................... 51
CAN SYSTEM (TYPE 2) ........................................... 52
System Description ................................................. 52
Component Parts and Harness Connector Location ... 52
Wiring Diagram - CAN - .......................................... 53
Work Flow ............................................................... 55
CHECK SHEET ................................................... 57
CHECK SHEET RESULTS (EXAMPLE) ............. 59
Circuit Check Between TCM and Data Link Con-
nector ...................................................................... 74
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. ................................... 74
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) ... 75
Circuit Check Between ABS Actuator and Electric
Unit (Control Unit) and Driver Seat Control Unit ..... 76
ECM Circuit Check ................................................. 76
TCM Circuit Check ................................................. 77
Display Unit Circuit Check ...................................... 77
Data Link Connector Circuit Check ........................ 78
BCM Circuit Check ................................................. 78
Steering Angle Sensor Circuit Check ..................... 79
Unified Meter and A/C Amp. Circuit Check ............ 79
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ..................................................................... 80
Driver Seat Control Unit Circuit Check ................... 80
IPDM E/R Circuit Check ......................................... 81
CAN Communication Circuit Check ........................ 82
IPDM E/R Ignition Relay Circuit Check .................. 86
Component Inspection ............................................ 86
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION .................................................................... 86
CAN SYSTEM (TYPE 3) ........................................... 87
System Description ................................................. 87
Component Parts and Harness Connector Location ... 87

LAN-2Revision: 2004 November 2004 FX35/FX45Schematic ............................................................... 88
Wiring Diagram - CAN - .......................................... 89
Work Flow ............................................................... 92
CHECK SHEET ................................................... 94
CHECK SHEET RESULTS (EXAMPLE) ............. 97
Circuit Check Between TCM and Data Link Con-
nector ....................................................................116
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. .................................117
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) .117
Circuit Check Between ABS Actuator and Electric
Unit (Control Unit) and Driver Seat Control Unit ...118
ECM Circuit Check ...............................................119
TCM Circuit Check ...............................................119
Display Control Unit Circuit Check ........................120
Low Tire Pressure Warning Control Unit Circuit
Check ...................................................................120
ICC Unit Circuit Check ..........................................121
Intelligent Key Unit Circuit Check .........................121
Data Link Connector Circuit Check .......................122
BCM Circuit Check ...............................................122
Steering Angle Sensor Circuit Check ...................123
Unified Meter and A/C Amp. Circuit Check ...........123
ICC Sensor Circuit Check .....................................124
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ...................................................................124
Driver Seat Control Unit Circuit Check .................125
IPDM E/R Circuit Check .......................................126
CAN Communication Circuit Check ......................127
IPDM E/R Ignition Relay Circuit Check .................132
Component Inspection ..........................................132
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION ..................................................................132
CAN SYSTEM (TYPE 4) .........................................133
System Description ...............................................133
Component Parts and Harness Connector Location .133
Schematic .............................................................134
Wiring Diagram - CAN - ........................................135
Work Flow .............................................................138
CHECK SHEET .................................................140
CHECK SHEET RESULTS (EXAMPLE) ...........142
Circuit Check Between TCM and Data Link Con-
nector ....................................................................156
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. .................................156
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) .157
ECM Circuit Check ...............................................157
TCM Circuit Check ...............................................158
Display Unit Circuit Check ....................................158
AWD Control Unit Circuit Check ...........................159
Data Link Connector Circuit Check .......................159
BCM Circuit Check ...............................................160
Steering Angle Sensor Circuit Check ...................160
Unified Meter and A/C Amp. Circuit Check ...........161
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ...................................................................161
IPDM E/R Circuit Check .......................................162CAN Communication Circuit Check ......................163
IPDM E/R Ignition Relay Circuit Check .................166
Component Inspection ..........................................166
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION ..................................................................166
CAN SYSTEM (TYPE 5) ..........................................167
System Description ...............................................167
Component Parts and Harness Connector Location .167
Schematic .............................................................168
Wiring Diagram - CAN - ........................................169
Work Flow .............................................................172
CHECK SHEET .................................................174
CHECK SHEET RESULTS (EXAMPLE) ............176
Circuit Check Between TCM and Data Link Con-
nector ....................................................................192
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. .................................192
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) .193
Circuit Check Between ABS Actuator and Electric
Unit (Control Unit) and Driver Seat Control Unit ...194
ECM Circuit Check ................................................194
TCM Circuit Check ................................................195
Display Unit Circuit Check ....................................195
AWD Control Unit Circuit Check ...........................196
Data Link Connector Circuit Check .......................196
BCM Circuit Check ................................................197
Steering Angle Sensor Circuit Check ....................197
Unified Meter and A/C Amp. Circuit Check ...........198
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ....................................................................198
Driver Seat Control Unit Circuit Check ..................199
IPDM E/R Circuit Check ........................................200
CAN Communication Circuit Check ......................200
IPDM E/R Ignition Relay Circuit Check .................205
Component Inspection ..........................................205
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION ..................................................................205
CAN SYSTEM (TYPE 6) ..........................................206
System Description ...............................................206
Component Parts and Harness Connector Location .206
Schematic .............................................................207
Wiring Diagram - CAN - ........................................208
Work Flow .............................................................211
CHECK SHEET .................................................213
CHECK SHEET RESULTS (EXAMPLE) ............216
Circuit Check Between TCM and Data Link Con-
nector ....................................................................237
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. .................................238
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) .238
Circuit Check Between ABS Actuator and Electric
Unit (Control Unit) and Driver Seat Control Unit ...239
ECM Circuit Check ................................................240
TCM Circuit Check ................................................240
Display Control Unit Circuit Check ........................241
Low Tire Pressure Warning Control Unit Circuit
Check ....................................................................241

LAN-4
[CAN]
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
[CAN]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007WY
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.
Precautions When Using CONSULT-IIAKS0058H
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
–If YES, GO TO 2.
–If NO, GO TO 5.
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?
–If YES, GO TO 3.
–If NO, GO TO 4.
3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefore, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to LAN-6, "
CAN Communication Unit" .
Precautions For Trouble DiagnosisAKS0058I
CAN SYSTEM

Do not apply voltage of 7.0 V or higher to the measurement terminals.

Use the tester with its open terminal voltage being 7.0 V or less.

Be sure to turn ignition switch off and disconnect negative battery terminal before checking the circuit.

PRECAUTIONS
LAN-5
[CAN]
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LAN
Revision: 2004 November 2004 FX35/FX45
Precautions For Harness RepairAKS0058J
CAN SYSTEM

Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in)]

Do not perform bypass wire connections for the repair parts.
(The spliced wire will become separated and the characteristics
of twisted line will be lost.)
PKIA0306E
PKIA0307E

LAN-6
[CAN]
CAN COMMUNICATION
Revision: 2004 November 2004 FX35/FX45
CAN COMMUNICATIONPFP:23710
System DescriptionAKS00BZ5
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 UnitAKS00BZ6
Go to CAN system, when selecting your CAN system type from the following table.
×: Applicable
TYPE 1/TYPE2
System diagram

Ty p e 1
Body typeWagon
Axle 2WD AWD
Engine VQ35DE VQ35DE/VK45DE
TransmissionA/T
Brake controlVDC
Navigation system××
Low tire pressure warning system××
ICC system××
Intelligent Key system××
Automatic drive positioner×× ××
CAN system type 1 2 3 4 5 6
CAN system trouble diagnosisLAN-21
LAN-52LAN-87LAN-133LAN-167LAN-206
SKIA6171E

LAN-8
[CAN]
CAN COMMUNICATION
Revision: 2004 November 2004 FX35/FX45
Position light request signal R T R R
Low beam request signal T R
Low beam status signal RT
High beam request signal T R R
High beam status signal RT
Front fog light request signal T R
Day time running light request signal T R
Turn LED burnout status signal R T
Vehicle speed signalRT
RRRR T R
Sleep wake up signal T R R
Door switch signal R T R R R
Turn indicator signal T R
Key fob ID signal T R
Key fob door unlock signal T R
Oil pressure switch signalRT
TR
Buzzer output signal T R
Fuel level sensor signal R T
Fuel level low warning signal R T
ASCD SET lamp signal T R
ASCD CRUISE lamp signal T R
Malfunction indicator lamp signal T R
ASCD operation signal T R
ASCD OD cancel request signal T R
Front wiper request signal T R
Front wiper stop position signal R T
Rear window defogger switch signal T R
Rear window defogger control signal R R R T
Hood switch signal R T
Theft warning horn request signal T R
Horn chirp signal T R
Steering angle sensor signal T R
ABS warning lamp signalRT
VDC OFF indicator lamp signal R T
SLIP indicator lamp signalRT
Brake warning lamp signal R T
System setting signalTR R
RT T
A/T CHECK indicator lamp signal T RSignals ECM TCMDis-
play
unitBCMSteer-
ing
angle
sensorUnified
meter
and
A/C
amp.ABS
actua-
tor and
electric
unit
(con-
trol
unit)Driver
seat
control
unitIPDM
E/R

CAN COMMUNICATION
LAN-9
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
TYPE 3
System diagram

Ty pe 3
Input/output signal chart
T: Transmit R: Receive A/T position indicator lamp signal T R
A/T shift schedule change demand signal R T
Manual mode signal R T
Not manual mode signal R T
Manual mode shift up signal R T
Manual mode shift down signal R T
Manual mode indicator signal T R
Distance to empty signal R T
Parking brake switch signal R T
Snow mode switch signal R TSignals ECM TCMDis-
play
unitBCMSte er-
ing
angle
sensorUnified
meter
and
A/C
amp.ABS
actua-
tor and
electric
unit
(con-
trol
unit)Driver
seat
control
unitIPDM
E/R
SKIA6173E
Signals ECM TCMDis-
play
con-
trol
unitLow
tire
pres-
sure
warn-
ing
con-
trol
unitICC
unitIntelli-
gent
Key
unitBCMSteer-
ing
angle
sen-
sorUni-
fied
meter
and
A/C
amp.ICC
sen-
sorABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)Driver
seat
con-
trol
unitIPDM
E/R
Engine speed signal T R R R R R
Engine status signal T R
Engine coolant tempera-
ture signalTR R