2006 INFINITI QX56 Factory Service Manual

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Page 2401 of 3383

INFINITI QX56 2006 Factory Service Manual LAN-132
[CAN]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: November 20092006 QX56
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect display control unit connector.
2. Check resistance between display control

Page 2402 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS FOR SYSTEMLAN-133
[CAN]
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Revision: November 2009 2006 QX56
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector terminals.
OK or N

Page 2403 of 3383

INFINITI QX56 2006 Factory Service Manual LAN-134
[CAN]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: November 20092006 QX56
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect front air control connector.
2. Check resistance between front air control h

Page 2404 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS FOR SYSTEMLAN-135
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Revision: November 2009 2006 QX56
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) con

Page 2405 of 3383

INFINITI QX56 2006 Factory Service Manual LAN-136
[CAN]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: November 20092006 QX56
2. CHECK HARNESS FOR SHORT CIRCUIT
With all module and control unit connectors disconnected, check
continuity between data l

Page 2406 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS FOR SYSTEMLAN-137
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Revision: November 2009 2006 QX56
6. UNIT REPRODUCIBILITY INSPECTION
Perform the following procedure for each unit on the CAN netwo

Page 2407 of 3383

INFINITI QX56 2006 Factory Service Manual LAN-138
[CAN]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: November 20092006 QX56

Page 2408 of 3383

INFINITI QX56 2006 Factory Service Manual LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 4
Precautions f

LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
General precautions for service operations ........ ..... 4
HEADLAMP (FOR USA) ....................................... ..... 5
Component Parts and Harness Connector Location ..... 5
System Description ............................................. ..... 5
OUTLINE .......................................................... ..... 5
XENON HEADLAMP ........................................ ..... 6
BATTERY SAVER CONTROL ......................... ..... 7
AUTO LIGHT OPERATION .............................. ..... 7
VEHICLE SECURITY SYSTEM (PANIC ALARM) ..... 7
CAN Communication System Description ........... ..... 7
Schematic ........................................................... ..... 8
Wiring Diagram — H/LAMP — ............................ ..... 9
Terminals and Reference Values for BCM .......... ... 13
Terminals and Reference Values for IPDM E/R .. ... 14
How to Proceed With Trouble Diagnosis ............. ... 14
Preliminary Check ............................................... ... 14
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 14
CONSULT-II Function (BCM) .............................. ... 16
CONSULT-II OPERATION ............................... ... 16
WORK SUPPORT ............................................ ... 17
DATA MONITOR .............................................. ... 17
ACTIVE TEST .................................................. ... 18
SELF-DIAGNOSTIC RESULTS ....................... ... 18
CONSULT-II Function (IPDM E/R) ...................... ... 19
CONSULT-II OPERATION ............................... ... 19
DATA MONITOR .............................................. ... 20
ACTIVE TEST .................................................. ... 20
Headlamp HI Does Not Illuminate (Both Sides) .. ... 21
Headlamp HI Does Not Illuminate (One Side) .... ... 23
High Beam Indicator Lamp Does Not Illuminate . ... 24
Headlamp LO Does Not Illuminate (Both Sides) . ... 24
Headlamp LO Does Not Illuminate (One Side) ... ... 26
Headlamps Do Not Turn OFF ............................. ... 27
Aiming Adjustment .............................................. ... 29
HEADLAMP AIMING ........................................ ... 29Bulb Replacement ...............................................
... 30
HEADLAMP (OUTER SIDE), FOR LOW BEAM ... 30
HEADLAMP (INNER SIDE), FOR HIGH BEAM ... 31
FRONT PARKING LAMP (INNER OR OUTER) ... 31
SIDE MARKER LAMP (FRONT) ......................... 31
Removal and Installation ..................................... ... 31
FRONT COMBINATION LAMP ASSEMBLY .... ... 31
INSTALLATION ................................................ ... 32
Disassembly and Assembly ................................. ... 32
FRONT COMBINATION LAMP ASSEMBLY .... ... 32
DISASSEMBLY ................................................ ... 32
ASSEMBLY ...................................................... ... 32
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - ............................................................... ... 33
Component Parts and Harness Connector Location ... 33
System Description .............................................. ... 34
OUTLINE .......................................................... ... 34
DAYTIME LIGHT OPERATION ........................ ... 34
COMBINATION SWITCH READING FUNCTION ... 34
AUTO LIGHT OPERATION .............................. ... 35
CAN Communication System Description ........... ... 35
Schematic ............................................................ ... 36
Wiring Diagram — DTRL — ................................ ... 37
Terminals and Reference Values for BCM ........... ... 41
How to Proceed With Trouble Diagnosis ............. ... 42
Preliminary Check ............................................... ... 42
CHECK BCM CONFIGURATION ..................... ... 42
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT .......................................... ... 42
INSPECTION PARKING BRAKE SWITCH CIR-
CUIT ................................................................. ... 43
CONSULT-II Functions ........................................ ... 44
Daytime Light Control Does Not Operate Properly
(Normal Headlamps Operate Properly) ............... ... 44
Aiming Adjustment ............................................... ... 46
Bulb Replacement ............................................... ... 46
Removal and Installation ..................................... ... 46
Disassembly and Assembly ................................. ... 46
AUTO LIGHT SYSTEM .......................................... ... 47
Component Parts and Harness Connector Location ... 47

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