2011 INFINITI QX56 wiring

MWI
METER SYSTEMMWI-51
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K L
M B A
O P
JCNWM4801GB
Revision: 2010 May2011 QX56

MWI-52
< WIRING DIAGRAM >
METER SYSTEM
JCNWM4802GB
Revision: 2010 May2011 QX56

MWI
METER SYSTEMMWI-53
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K L
M B A
O P
JCNWM4803GB
Revision: 2010 May2011 QX56

MWI-54
< WIRING DIAGRAM >
METER SYSTEM
JCNWM4804GB
Revision: 2010 May2011 QX56

MWI
CLOCKMWI-55
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K L
M B A
O P
CLOCK
Wiring DiagramINFOID:0000000006221726
JCNWM4735GB
Revision: 2010 May2011 QX56

MWI-56
< WIRING DIAGRAM >
CLOCK
JCNWM4805GB
Revision: 2010 May2011 QX56

MWI
U1000 CAN COMM CIRCUITMWI-59
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000006221728
CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle
multiplex communication system with high data communi cation speed and excellent error detectability. Many
electronic control units are equipped onto vehicles, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two 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 Signal Chart. Refer to LAN-28, "
CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
DTC LogicINFOID:0000000006221729
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006221730
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of “METER/M&A”.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
DTCDisplay contents of
CONSULT-III Diagnostic item is detected when... Probable malfunction location
U1000 CAN COMM CIRCUIT When combination meter is not transmitting or
receiving CAN communication signal for 2
seconds or more.
CAN communication system
Revision: 2010 May2011 QX56

PCS
PCS-1
ELECTRICAL & POWER CONTROL
C
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F
G H
I
J
K L
B
SECTION PCS
A
O P
N
CONTENTS
POWER CONTROL SYSTEM
IPDM E/R
PRECAUTION ................ ...............................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
SYSTEM DESCRIPTION ..............................4
COMPONENT PARTS ................................... .....4
Component Parts Location .................................. ......4
SYSTEM ..............................................................5
RELAY CONTROL SYSTEM ................................ ......5
RELAY CONTROL SYSTEM : System Diagram ......5
RELAY CONTROL SYSTEM : System Descrip-
tion ...................................................................... ......
5
RELAY CONTROL SYSTEM : Fail-Safe ...................6
POWER CONTROL SYSTEM .....................................7
POWER CONTROL SYSTEM : System Diagram ......8
POWER CONTROL SYSTEM : System Descrip-
tion ...................................................................... ......
8
SIGNAL BUFFER SYSTEM ........................ ................8
SIGNAL BUFFER SYSTEM : System Diagram .. ......8
SIGNAL BUFFER SYSTEM : System Description ......8
POWER CONSUMPTION CONTROL SYSTEM ... ......8
POWER CONSUMPTION CONTROL SYSTEM :
System Diagram ........................................................
9
POWER CONSUMPTION CONTROL SYSTEM :
System Description ...................................................
9
DIAGNOSIS SYSTEM (IPDM E/R) .....................10
Diagnosis Description ......................................... ....10
CONSULT-III Function (IPDM E/R) .........................12
ECU DIAGNOSIS INFORMATION ..............15
IPDM E/R ...........................................................15
Reference Value .................................................. ....15
Fail-Safe ..................................................................21
DTC Index ...............................................................22
WIRING DIAGRAM ......................................24
IPDM E/R ...........................................................24
Wiring Diagram .................................................... ....24
DTC/CIRCUIT DIAGNOSIS .........................28
U1000 CAN COMM CIRCUIT ...........................28
Description ........................................................... ....28
DTC Logic ................................................................28
Diagnosis Procedure ...............................................28
B2098 IGNITION RELAY ON STUCK ..............29
Description ...............................................................29
DTC Logic ................................................................29
Diagnosis Procedure ...............................................29
B2099 IGNITION RELAY OFF STUCK ............30
Description ...............................................................30
DTC Logic ................................................................30
Diagnosis Procedure ...............................................30
POWER SUPPLY AND GROUND CIRCUIT ....31
Diagnosis Procedure ...............................................31
REMOVAL AND INSTALLATION ...............32
IPDM E/R ...........................................................32
Removal and Installation ..................................... ....32
POWER DISTRIBUTION SYSTEM
PRECAUTION ............... ...............................
33
PRECAUTIONS .................................................33
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
33
Revision: 2010 May2011 QX56