Index Infiniti Infiniti Q45 - service repair manual 2006 year
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Infiniti Q45. Manual - part 638
LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
LAN
A
B
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-SIONER” .................................................................. 3
IVMS (LAN) ................................................................. 4
Overall Description ................................................... 4
OUTLINE ............................................................... 4BCM (BODY CONTROL MODULE) ...................... 4LCU (LOCAL CONTROL UNIT) ............................ 4
Control System for BCM .......................................... 4
SYSTEM CONTROLLED BY MULTIPLE COM-MUNICATION BETWEEN BCM AND LCU (IVMS) ................................................................... 4SYSTEM CONTROLLED BY BCM ONLY ............ 4
Component Parts and Harness Connector Location
..... 5
Sleep/Wake-Up Control ............................................ 5
SLEEP CONTROL ................................................ 5WAKE-UP CONTROL ........................................... 6
Fail-Safe System ...................................................... 6CONSULT-II Function (IVMS) .................................. 6
DIAGNOSTIC ITEMS DESCRIPTION .................. 6DIAGNOSTIC ITEMS APPLICATION ................... 6
On Board Diagnosis ................................................. 7
ON BOARD DIAGNOSTIC RESULTS INDICA-TOR LAMP ............................................................ 7DIAGNOSTIC ITEM .............................................. 7
Removal and Installation of BCM ............................. 8
REMOVAL ............................................................. 8INSTALLATION ..................................................... 8
Removal and Installation of LCU .............................. 8Schematic ................................................................ 9
POWER SUPPLY, GROUND AND COMMUNI-CATION CIRCUITS ............................................... 9
Wiring Diagram — COMM — ................................. 10
POWER SUPPLY, GROUND AND COMMUNI-CATION CIRCUITS ............................................. 10
Schematic — BCM — ............................................ 15
CAN
PRECAUTIONS ........................................................ 17
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-SIONER” ................................................................. 17Precautions When Using CONSULT-II ................... 17
CHECK POINTS FOR USING CONSULT-II ........ 17
Precautions for Trouble Diagnosis ......................... 17
CAN SYSTEM ..................................................... 17
Precautions for Harness Repair ............................. 18
CAN SYSTEM ..................................................... 18
TROUBLE DIAGNOSES WORK FLOW ................... 19
When Displaying CAN Communication System Errors ...................................................................... 19
WHEN A MALFUNCTION IS DETECTED BY CAN COMMUNICATION SYSTEM ..................... 19WHEN A MALFUNCTION IS DETECTED EXCEPT CAN COMMUNICATION SYSTEM ...... 19TROUBLE DIAGNOSIS FLOW CHART .............. 20
Diagnosis Procedure .............................................. 21
SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE) ........................... 21ACQUISITION OF DATA BY CONSULT-II .......... 22HOW TO USE CHECK SHEET TABLE ............... 23
CAN Diagnostic Support Monitor ............................ 29
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ECM ............................... 29DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR TCM ................................ 30DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR VDC/TCS/ABS CON-TROL UNIT ......................................................... 30DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ICC CONTROL UNIT ..... 31DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR PRE-CRASH SEAT BELT CONTROL UNIT ................................................. 32DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR RAS CONTROL UNIT .... 33DESCRIPTION OF “CAN DIAG SUPPORT