Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti FX45 FX35 2003-2005 Approved FX45_35-S50-2005 lan
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LAN SYSTEM
K ELECTRICAL
A
SECTION LAN LAN SYSTEM
B
C
D
E
CONTENTS
CAN MNTR" SCREEN FOR INTELLIGENT KEY UNIT 24 ... F
DESCRIPTION OF "CAN DIAG SUPPORT
PRECAUTIONS ......................................................... 5 . MNTR" SCREEN FOR BCM .............................. 25 .
Precautions for Supplemental Restraint System DESCRIPTION OF "CAN DIAG SUPPORT G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- MNTR" SCREEN FOR LDW CAMERA UNIT ..... 26 .
SIONER" ................................................................. 5
. DESCRIPTION OF "CAN DIAG SUPPORT
Precautions When Using CONSULT-II .................... 5 . MNTR" SCREEN FOR UNIFIED METER AND A/
CHECK POINTS FOR USING CONSULT-II ........ 5 . H
C AMP. ................................................................ 27
.
Precautions For Trouble Diagnosis ......................... 5 . DESCRIPTION OF "CAN DIAG SUPPORT
CAN SYSTEM ...................................................... 5 . MNTR" SCREEN FOR ABS ACTUATOR AND
Precautions For Harness Repair ............................. 6 . ELECTRIC UNIT (CONTROL UNIT) .................. 28 . I
CAN SYSTEM ...................................................... 6 . DESCRIPTION OF "CAN DIAG SUPPORT
TROUBLE DIAGNOSES WORK FLOW ................... 7 . MNTR" SCREEN FOR DRIVER SEAT CON-
When Displaying CAN Communication System TROL UNIT ........................................................ 28 . J
Errors ...................................................................... 7
. DESCRIPTION OF "CAN DIAG SUPPORT
WHEN A MALFUNCTION IS DETECTED BY MNTR" SCREEN FOR IPDM E/R ...................... 29 .
CAN COMMUNICATION SYSTEM ...................... 7 . CAN COMMUNICATION .......................................... 30 .
WHEN A MALFUNCTION IS DETECTED LAN
System Description ................................................ 30 .
EXCEPT CAN COMMUNICATION SYSTEM ....... 7 . CAN Communication Unit ...................................... 30 .
TROUBLE DIAGNOSIS FLOW CHART .............. 8 . TYPE 1/TYPE 2/TYPE 9 .................................... 30 .
Diagnosis Procedure ............................................... 9 . TYPE 3/TYPE 4 .................................................. 34 . L
SELECTING CAN SYSTEM TYPE (HOW TO TYPE 5/TYPE 6/TYPE 10 .................................. 38 .
USE SPECIFICATION TABLE) ............................ 9 . TYPE 7/TYPE 8 .................................................. 42 .
ACQUISITION OF DATA BY CONSULT-II ......... 10 . CAN SYSTEM (TYPE 1) .......................................... 47 . M
HOW TO USE CHECK SHEET TABLE ..............11 . Component Parts and Harness Connector Location 47 ...
CAN Diagnostic Support Monitor .......................... 18 . Schematic .............................................................. 48
.
DESCRIPTION OF "CAN DIAG SUPPORT Wiring Diagram - CAN - ......................................... 49 .
MNTR" SCREEN FOR ECM .............................. 18 . Check Sheet .......................................................... 52.
DESCRIPTION OF "CAN DIAG SUPPORT CHECK SHEET RESULTS (EXAMPLE) ............ 54 .
MNTR" SCREEN FOR TCM .............................. 19 . Inspection Between TCM and Data Link Connector
DESCRIPTION OF "CAN DIAG SUPPORT Circuit .................................................................... 70
.
MNTR" SCREEN FOR DISPLAY CONTROL Inspection Between Data Link Connector and Uni-
UNIT ................................................................... 20
. fied Meter and A/C Amp. Circuit ............................ 71 .
DESCRIPTION OF "CAN DIAG MNTR" SCREEN Inspection Between Unified Meter and A/C Amp.
FOR DISPLAY UNIT .......................................... 21 . and ABS Actuator and Electric Unit (Control Unit)
DESCRIPTION OF "CAN DIAG SUPPORT Circuit .................................................................... 71
.
MNTR" SCREEN FOR AWD CONTROL UNIT ... 22 Inspection Between ABS Actuator and Electric Unit
DESCRIPTION OF "CAN DIAG SUPPORT (Control Unit) and Driver Seat Control Unit Circuit 72 ...
MNTR" SCREEN FOR ICC UNIT ...................... 23 . ECM Circuit Inspection .......................................... 73 .
DESCRIPTION OF "CAN DIAG SUPPORT TCM Circuit Inspection .......................................... 73 .
Revision: 2005 July LAN-1 2005 FX
Display Unit Circuit Inspection ............................... 74 . Intelligent Key Unit Circuit Inspection .................. 159 .
Data Link Connector Circuit Inspection ................. 74 . Data Link Connector Circuit Inspection ................ 159 .
BCM Circuit Inspection .......................................... 75 . BCM Circuit Inspection ........................................ 160 .
Steering Angle Sensor Circuit Inspection .............. 75 . Steering Angle Sensor Circuit Inspection ............. 160 .
Unified Meter and A/C Amp. Circuit Inspection ..... 76 . Unified Meter and A/C Amp. Circuit Inspection .... 161 .
ABS Actuator and Electric Unit (Control Unit) Circuit ICC Sensor Circuit Inspection .............................. 161 .
Inspection .............................................................. 76
. ABS Actuator and Electric Unit (Control Unit) Circuit
Driver Seat Control Unit Circuit Inspection ............ 77 . Inspection ............................................................. 162
.
IPDM E/R Circuit Inspection .................................. 78 . Driver Seat Control Unit Circuit Inspection .......... 162 .
CAN Communication Circuit Inspection ................. 78 . IPDM E/R Circuit Inspection ................................ 163 .
IPDM E/R Ignition Relay Circuit Inspection ........... 84 . CAN Communication Circuit Inspection ............... 164 .
CAN SYSTEM (TYPE 2) .......................................... 85 . IPDM E/R Ignition Relay Circuit Inspection .......... 170 .
Component Parts and Harness Connector Location 85 ... CAN SYSTEM (TYPE 4) ......................................... 171 .
Schematic .............................................................. 86
. Component Parts and Harness Connector Location .171
Wiring Diagram - CAN - ......................................... 87 . Schematic ............................................................ 172.
Check Sheet .......................................................... 90. Wiring Diagram - CAN - ....................................... 173 .
CHECK SHEET RESULTS (EXAMPLE) ............ 93 . Check Sheet ........................................................ 176 .
Inspection Between TCM and Data Link Connector CHECK SHEET RESULTS (EXAMPLE) ........... 180 .
Circuit .................................................................. 110
. Inspection Between TCM and Data Link Connector
Inspection Between Data Link Connector and Uni- Circuit ................................................................... 200
.
fied Meter and A/C Amp. Circuit ...........................111 . Inspection Between Data Link Connector and Uni-
Inspection Between Unified Meter and A/C Amp. fied Meter and A/C Amp. Circuit .......................... 201 .
and ABS Actuator and Electric Unit (Control Unit) Inspection Between Unified Meter and A/C Amp.
Circuit ...................................................................111
. and ABS Actuator and Electric Unit (Control Unit)
Inspection Between ABS Actuator and Electric Unit Circuit ................................................................... 201
.
(Control Unit) and Driver Seat Control Unit Circuit. 112 Inspection Between ABS Actuator and Electric Unit
ECM Circuit Inspection ........................................ 113 . (Control Unit) and Driver Seat Control Unit Circuit.202
TCM Circuit Inspection ........................................ 113 . ECM Circuit Inspection ........................................ 203 .
Display Unit Circuit Inspection ............................. 114 . TCM Circuit Inspection ......................................... 203 .
Data Link Connector Circuit Inspection ............... 114 . Display Control Unit Circuit Inspection ................. 204 .
BCM Circuit Inspection ........................................ 115 . ICC Unit Circuit Inspection ................................... 204 .
Steering Angle Sensor Circuit Inspection ............ 115 . Intelligent Key Unit Circuit Inspection .................. 205 .
LDW Camera Unit Circuit Inspection ................... 116 . Data Link Connector Circuit Inspection ................ 205 .
Unified Meter and A/C Amp. Circuit Inspection ... 117 . BCM Circuit Inspection ........................................ 206 .
ABS Actuator and Electric Unit (Control Unit) Circuit Steering Angle Sensor Circuit Inspection ............. 206 .
Inspection ............................................................ 117
. LDW Camera Unit Circuit Inspection ................... 207 .
Driver Seat Control Unit Circuit Inspection .......... 118 . Unified Meter and A/C Amp. Circuit Inspection .... 208 .
IPDM E/R Circuit Inspection ................................ 118 . ICC Sensor Circuit Inspection .............................. 208 .
CAN Communication Circuit Inspection ............... 119 . ABS Actuator and Electric Unit (Control Unit) Circuit
IPDM E/R Ignition Relay Circuit Inspection ......... 125 . Inspection ............................................................. 209
.
CAN SYSTEM (TYPE 3) ........................................ 126 . Driver Seat Control Unit Circuit Inspection .......... 209 .
Component Parts and Harness Connector Location 126 . IPDM E/R Circuit Inspection ................................ 210 .
Schematic ............................................................ 127
. CAN Communication Circuit Inspection ............... 211 .
Wiring Diagram - CAN - ....................................... 128 . IPDM E/R Ignition Relay Circuit Inspection .......... 218 .
Check Sheet ........................................................ 131 . CAN SYSTEM (TYPE 5) ......................................... 219 .
CHECK SHEET RESULTS (EXAMPLE) .......... 135 . Component Parts and Harness Connector Location .219
Inspection Between TCM and Data Link Connector Schematic ............................................................ 220.
Circuit .................................................................. 154
. Wiring Diagram - CAN - ....................................... 221 .
Inspection Between Data Link Connector and Uni- Check Sheet ........................................................ 224 .
fied Meter and A/C Amp. Circuit .......................... 155 . CHECK SHEET RESULTS (EXAMPLE) ........... 227 .
Inspection Between Unified Meter and A/C Amp. Inspection Between TCM and Data Link Connector
and ABS Actuator and Electric Unit (Control Unit) Circuit ................................................................... 244
.
Circuit .................................................................. 155
. Inspection Between Data Link Connector and Uni-
Inspection Between ABS Actuator and Electric Unit fied Meter and A/C Amp. Circuit .......................... 245 .
(Control Unit) and Driver Seat Control Unit Circuit. 156 Inspection Between Unified Meter and A/C Amp.
ECM Circuit Inspection ........................................ 157 . and ABS Actuator and Electric Unit (Control Unit)
TCM Circuit Inspection ........................................ 157 . Circuit ................................................................... 245
.
Display Control Unit Circuit Inspection ................ 158 . Inspection Between ABS Actuator and Electric Unit
ICC Unit Circuit Inspection .................................. 158 . (Control Unit) and Driver Seat Control Unit Circuit.246
Revision: 2005 July LAN-2 2005 FX
ECM Circuit Inspection ........................................ 247 . ECM Circuit Inspection ........................................ 336 .
TCM Circuit Inspection ........................................ 247 . TCM Circuit Inspection ........................................ 336 . A
Display Unit Circuit Inspection ............................ 248 . Display Control Unit Circuit Inspection ................ 337 .
AWD Control Unit Circuit Inspection ................... 248 . AWD Control Unit Circuit Inspection .................... 337 .
Data Link Connector Circuit Inspection ............... 249 . ICC Unit Circuit Inspection .................................. 338 . B
BCM Circuit Inspection ........................................ 249 . Intelligent Key Unit Circuit Inspection .................. 338 .
Steering Angle Sensor Circuit Inspection ............ 250 . Data Link Connector Circuit Inspection ............... 339 .
Unified Meter and A/C Amp. Circuit Inspection ... 250 . BCM Circuit Inspection ........................................ 339 .
ABS Actuator and Electric Unit (Control Unit) Circuit Steering Angle Sensor Circuit Inspection ............ 340 . C
Inspection ............................................................ 251
. Unified Meter and A/C Amp. Circuit Inspection ... 340 .
Driver Seat Control Unit Circuit Inspection .......... 251 . ICC Sensor Circuit Inspection ............................. 341 .
IPDM E/R Circuit Inspection ................................ 252 . ABS Actuator and Electric Unit (Control Unit) Circuit D
CAN Communication Circuit Inspection .............. 253 . Inspection ............................................................ 341
.
IPDM E/R Ignition Relay Circuit Inspection ......... 259 . Driver Seat Control Unit Circuit Inspection .......... 342 .
CAN SYSTEM (TYPE 6) ........................................ 260 . IPDM E/R Circuit Inspection ................................ 343 . E
Component Parts and Harness Connector Location 260 . CAN Communication Circuit Inspection .............. 344 .
Schematic ........................................................... 261. IPDM E/R Ignition Relay Circuit Inspection ......... 350 .
Wiring Diagram - CAN - ...................................... 262 . CAN SYSTEM (TYPE 8) ........................................ 351 .
Check Sheet ........................................................ 265 . Component Parts and Harness Connector Location 351 . F
CHECK SHEET RESULTS (EXAMPLE) .......... 269 . Schematic ............................................................ 352
.
Inspection Between TCM and Data Link Connector Wiring Diagram - CAN - ....................................... 353 .
Circuit .................................................................. 287
. Check Sheet ........................................................ 356 . G
Inspection Between Data Link Connector and Uni- CHECK SHEET RESULTS (EXAMPLE) .......... 360 .
fied Meter and A/C Amp. Circuit .......................... 288 . Inspection Between TCM and Data Link Connector
Inspection Between Unified Meter and A/C Amp. Circuit .................................................................. 381
. H
and ABS Actuator and Electric Unit (Control Unit) Inspection Between Data Link Connector and Uni-
Circuit .................................................................. 288
. fied Meter and A/C Amp. Circuit .......................... 382 .
Inspection Between ABS Actuator and Electric Unit Inspection Between Unified Meter and A/C Amp.
I
(Control Unit) and Driver Seat Control Unit Circuit 289 . and ABS Actuator and Electric Unit (Control Unit)
ECM Circuit Inspection ........................................ 290 . Circuit .................................................................. 382
.
TCM Circuit Inspection ........................................ 290 . Inspection Between ABS Actuator and Electric Unit
Display Unit Circuit Inspection ............................ 291 . (Control Unit) and Driver Seat Control Unit Circuit 383 . J
AWD Control Unit Circuit Inspection ................... 291 . ECM Circuit Inspection ........................................ 384 .
Data Link Connector Circuit Inspection ............... 292 . TCM Circuit Inspection ........................................ 384 .
BCM Circuit Inspection ........................................ 292 . Display Control Unit Circuit Inspection ................ 385 . LAN
Steering Angle Sensor Circuit Inspection ............ 293 . AWD Control Unit Circuit Inspection .................... 385 .
LDW Camera Unit Circuit Inspection .................. 293 . ICC Unit Circuit Inspection .................................. 386 .
Unified Meter and A/C Amp. Circuit Inspection ... 294 . Intelligent Key Unit Circuit Inspection .................. 386 . L
ABS Actuator and Electric Unit (Control Unit) Circuit Data Link Connector Circuit Inspection ............... 387 .
Inspection ............................................................ 295
. BCM Circuit Inspection ........................................ 387 .
Driver Seat Control Unit Circuit Inspection .......... 295 . Steering Angle Sensor Circuit Inspection ............ 388 .
IPDM E/R Circuit Inspection ................................ 296 . LDW Camera Unit Circuit Inspection ................... 388 . M
CAN Communication Circuit Inspection .............. 297 . Unified Meter and A/C Amp. Circuit Inspection ... 389 .
IPDM E/R Ignition Relay Circuit Inspection ......... 303 . ICC Sensor Circuit Inspection ............................. 390 .
CAN SYSTEM (TYPE 7) ........................................ 304 . ABS Actuator and Electric Unit (Control Unit) Circuit
Component Parts and Harness Connector Location 304 . Inspection ............................................................ 390
.
Schematic ........................................................... 305. Driver Seat Control Unit Circuit Inspection .......... 391 .
Wiring Diagram - CAN - ...................................... 306 . IPDM E/R Circuit Inspection ................................ 391 .
Check Sheet ........................................................ 309 . CAN Communication Circuit Inspection .............. 392 .
CHECK SHEET RESULTS (EXAMPLE) .......... 313 . IPDM E/R Ignition Relay Circuit Inspection ......... 399 .
Inspection Between TCM and Data Link Connector CAN SYSTEM (TYPE 9) ........................................ 400 .
Circuit .................................................................. 333
. Component Parts and Harness Connector Location 400 .
Inspection Between Data Link Connector and Uni- Schematic ............................................................ 401
.
fied Meter and A/C Amp. Circuit .......................... 334 . Wiring Diagram - CAN - ....................................... 402 .
Inspection Between Unified Meter and A/C Amp. Check Sheet ........................................................ 405 .
and ABS Actuator and Electric Unit (Control Unit) CHECK SHEET RESULTS (EXAMPLE) .......... 407 .
Circuit .................................................................. 334
. Inspection Between TCM and Data Link Connector
Inspection Between ABS Actuator and Electric Unit Circuit .................................................................. 421
.
(Control Unit) and Driver Seat Control Unit Circuit 335 . Inspection Between Data Link Connector and Uni-
Revision: 2005 July LAN-3 2005 FX
fied Meter and A/C Amp. Circuit .......................... 422 . CHECK SHEET RESULTS (EXAMPLE) ........... 441 .
Inspection Between Unified Meter and A/C Amp. Inspection Between TCM and Data Link Connector
and ABS Actuator and Electric Unit (Control Unit) Circuit ................................................................... 456
.
Circuit .................................................................. 422
. Inspection Between Data Link Connector and Uni-
ECM Circuit Inspection ........................................ 423 . fied Meter and A/C Amp. Circuit .......................... 457 .
TCM Circuit Inspection ........................................ 423 . Inspection Between Unified Meter and A/C Amp.
Display Unit Circuit Inspection ............................. 424 . and ABS Actuator and Electric Unit (Control Unit)
Data Link Connector Circuit Inspection ............... 424 . Circuit ................................................................... 457
.
BCM Circuit Inspection ........................................ 425 . ECM Circuit Inspection ........................................ 458 .
Steering Angle Sensor Circuit Inspection ............ 425 . TCM Circuit Inspection ......................................... 458 .
Unified Meter and A/C Amp. Circuit Inspection ... 426 . Display Unit Circuit Inspection ............................. 459 .
ABS Actuator and Electric Unit (Control Unit) Circuit AWD Control Unit Circuit Inspection .................... 459 .
Inspection ............................................................ 426
. Data Link Connector Circuit Inspection ................ 460 .
IPDM E/R Circuit Inspection ................................ 427 . BCM Circuit Inspection ........................................ 460 .
CAN Communication Circuit Inspection ............... 428 . Steering Angle Sensor Circuit Inspection ............. 461 .
IPDM E/R Ignition Relay Circuit Inspection ......... 433 . Unified Meter and A/C Amp. Circuit Inspection .... 461 .
CAN SYSTEM (TYPE 10) ...................................... 434 . ABS Actuator and Electric Unit (Control Unit) Circuit
Component Parts and Harness Connector Location 434 . Inspection ............................................................. 462
.
Schematic ............................................................ 435
. IPDM E/R Circuit Inspection ................................ 462 .
Wiring Diagram - CAN - ....................................... 436 . CAN Communication Circuit Inspection ............... 463 .
Check Sheet ........................................................ 439 . IPDM E/R Ignition Relay Circuit Inspection .......... 469 .
Revision: 2005 July LAN-4 2005 FX
PRECAUTIONS
[CAN]
PRECAUTIONS
[CAN] PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS00FCW
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
q 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. E
q 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. F
q 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.
G
Precautions When Using CONSULT-II AKS0058H
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
H
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.
I
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
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