2010 INFINITI QX56 wiring

INSIDE MIRRORMIR-11
< REMOVAL AND INSTALLATION >
C
DE
F
G H
I
J
K
M A
B
MIR
N
O P
REMOVAL AND INSTALLATION
INSIDE MIRROR
Wiring Diagram - I/MIRR -INFOID:0000000005146596
WIWA2061E
Revision: April 20092010 QX56

DOOR MIRRORMIR-13
< REMOVAL AND INSTALLATION >
C
DE
F
G H
I
J
K
M A
B
MIR
N
O P
DOOR MIRROR
Wiring Diagram - MIRROR -Wit hout Power Folding MirrorsINFOID:0000000005146598
WIWA2063E
Revision: April 20092010 QX56

DOOR MIRRORMIR-15
< REMOVAL AND INSTALLATION >
C
DE
F
G H
I
J
K
M A
B
MIR
N
O P
Wiring Diagram - H/MIRR -INFOID:0000000005146599
WIWA1387E
Revision: April 20092010 QX56

MWI-2
INFORMATION DISPLAY .........................................19
INFORMATION DISPLAY : System Diagram .........20
INFORMATION DISPLAY : System Description ....20
INFORMATION DISPLAY : Component Parts Lo-
cation ................................................................... ...
21
INFORMATION DISPLAY : Component Descrip-
tion ....................................................................... ...
21
DIAGNOSIS SYSTEM (METER) .......................22
Diagnosis Description .......................................... ...22
CONSULT-III Function (METER/M&A) ................ ...23
COMPONENT DIAGNOSIS ........................26
DTC U1000 CAN COMMUNICATION ............ ...26
DTC Logic ............................................................ ...26
Diagnosis Procedure .............................................26
DTC B2205 VEHICLE SPEED CIRCUIT ...........27
Description ........................................................... ...27
DTC Logic ...............................................................27
Diagnosis Procedure .............................................27
POWER SUPPLY AND GROUND CIRCUIT .....28
COMBINATION METER ........................................ ...28
COMBINATION METER : Diagnosis Procedure ....28
BCM (BODY CONTROL MODULE) ...................... ...29
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ...............................................................
29
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) .......................... ...
30
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure .....................................................................
30
FUEL LEVEL SENSOR SIGNAL CIRCUIT .......32
Description ........................................................... ...32
Component Function Check ...................................32
Diagnosis Procedure .............................................32
Component Inspection ............................................33
OIL PRESSURE SWITCH SIGNAL CIRCUIT ...34
Description ..............................................................34
Component Function Check ...................................34
Diagnosis Procedure ..............................................34
Component Inspection ............................................34
PARKING BRAKE SWITCH SIGNAL CIR-
CUIT ...................................................................
35
Description ........................................................... ...35
Component Function Check ...................................35
Diagnosis Procedure ..............................................35
Component Inspection ............................................35
WASHER LEVEL SWITCH SIGNAL CIRCUIT ...36
Description ........................................................... ...36
Diagnosis Procedure ..............................................36
Component Inspection ............................................36
CLOCK ..............................................................37
Wiring Diagram .................................................... ...37
ECU DIAGNOSIS .......................................39
COMBINATION METER ................................. ...39
Reference Value .................................................. ...39
Wiring Diagram .......................................................41
Fail Safe ..................................................................58
DTC Index ...............................................................59
BCM (BODY CONTROL MODULE) ..................61
Reference Value .................................................. ...61
Terminal Layout ......................................................64
Physical Values .......................................................64
Wiring Diagram .......................................................70
Fail Safe .................................................................74
DTC Inspection Priority Chart ...............................75
DTC Index ..............................................................75
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
77
Reference Value .................................................. ...77
Terminal Layout ......................................................79
Physical Values .......................................................80
Wiring Diagram .......................................................85
Fail Safe .................................................................88
DTC Index ..............................................................90
SYMPTOM DIAGNOSIS ............................91
THE FUEL GAUGE POINTER DOES NOT
MOVE .............................................................. ...
91
Description ........................................................... ...91
Diagnosis Procedure ...............................................91
THE FUEL GAUGE POINTER DOES NOT
MOVE TO "F" WHEN REFUELING ..................
92
Description ........................................................... ...92
Diagnosis Procedure ...............................................92
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN ON .................................... ...
93
Description ........................................................... ...93
Diagnosis Procedure ...............................................93
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN OFF .................................. ...
94
Description ........................................................... ...94
Diagnosis Procedure ...............................................94
THE PARKING BRAKE RELEASE WARNING
CONTINUES DISPLAYING, OR DOES NOT
DISPLAY ............................................................
95
Description ........................................................... ...95
Diagnosis Procedure ...............................................95
THE LOW WASHER FLUID WARNING CON-
TINUES DISPLAYING, or DOES NOT DIS-
PLAY ..................................................................
96
Revision: April 20092010 QX56

MWI-28
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis ProcedureINFOID:0000000005146078
Regarding Wiring Diagram information, refer to MWI-41, "Wiring Diagram".
1.CHECK FUSES
Check for blown combination meter fuses.
Is the inspection result normal?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect combination meter connector M24.
2. Check voltage between combination meter harness connector M24 terminals 21, 37, 40 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Check harness for open between combination meter and fuse.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect combination meter connector M23.
3. Check continuity between combination meter harness connector M23 terminal 47, 52 and ground, and connector M24 terminal 20
and ground.
Is the inspection result normal?
Unit Power source Fuse No.
Combination meter Battery 3
Ignition switch ON or START 14
Ignition switch ACC or ON 4
TerminalsIgnition switch position
(+) (–) OFF ACC ON START
Connector Terminal
M24 21
Ground 0V 0V
Battery
voltage Battery
voltage
37 0VBattery
voltage Battery
voltage 0V
40 Battery
voltage Battery
voltage Battery
voltage Battery
voltage
AWNIA0204ZZ
Te r m i n a l s
Continuity
(+)
(–)
Connector Terminal
A: M23 47
Ground Yes
52
B: M24 20
AWNIA0205ZZ
Revision: April 20092010 QX56

MWI
POWER SUPPLY AND GROUND CIRCUITMWI-29
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
YES >> Inspection End.
NO >> Check ground harness.
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis ProcedureINFOID:0000000005380655
Regarding Wiring Diagram information, refer to MWI-70, "Wiring Diagram".
1. CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
Terminal No. Signal nameFuses and fusible link No.
57 Battery power supply 22 (15A)
70 F (50A)
11 Ignition ACC or ON 4 (10A)
38 Ignition ON or START 59 (10A)
ConnectorTe r m i n a l s
Power
source Condition Voltage (V) (Ap-
prox.)
(+) (-)
M18 11 Ground
ACC
power
supply Ignition
switch
ACC or ON Battery voltage
38 Ground Ignition
power
supply Ignition
switch ON
or START Battery voltage
M20 57 Ground
Battery
power
supply Ignition
switch OFF Battery voltage
70 Ground Battery
power
supply Ignition
switch OFF Battery voltage
LIIA2415E
Revision: April 20092010 QX56

MWI-30
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair or replace harness.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DIST RIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000005380656
Regarding Wiring Diagram information, refer to MWI-85, "Wiring Diagram".
1. CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK BATTERY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R.
3. Check voltage between IPDM E/R harness connectors and ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
BCM
GroundContinuity
Connector Terminal
M20 67 Yes
LIIA0915E
Terminal No. Signal nameFuses and fusible link No.
1 Battery A, D
2 Battery C
12 Ignition switch ON or START 59
TerminalsIgnition switch position
(+) (−) OFF ON START
Connector Terminal
E118 (A) 1
Ground Battery
voltage Battery
voltage Battery
voltage
2 Battery
voltage Battery
voltage Battery
voltage
E119 (B) 12 0VBattery
voltage Battery
voltage
AWMIA0023ZZ
Revision: April 20092010 QX56

MWI-32
< COMPONENT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
FUEL LEVEL SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000005146081
The fuel level sensor unit and fuel pump detects the approximate fuel level in the fuel tank and transmits the
fuel level signal to the combination meter.
Component Function CheckINFOID:0000000005146082
1.COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Using “FUEL METER” of “DAT A MONITOR”, compare the value of DATA MONITOR with fuel gauge
pointer of combination meter.
Does the data monitor value approximately match the fuel gauge indication?
YES >> Inspection End.
NO >> Replace combination meter. Refer to MWI-100, "
Removal and Installation".
Diagnosis ProcedureINFOID:0000000005146083
Regarding Wiring Diagram information, refer to MWI-41, "Wiring Diagram".
1.CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Check combination meter and fuel level sensor uni t terminals (meter-side and harness-side) for poor con-
nection.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace terminals or connectors.
2.CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
1. Disconnect combination meter connector and fuel level sensor unit connector.
2. Check continuity between combination meter harness connector
(B) and fuel level sensor uni t and fuel pump harness connector
(A).
3. Check continuity between fuel level sensor unit and fuel pump harness connector (A) and ground.
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 93
3/4 Approx. 73
1/2 Approx. 52
1/4 Approx. 30
Empty Approx. 11
AB
Continuity
Connector Terminal Connector Terminal
C5 2 M24 3 Yes
AWNIA0206ZZ
Revision: April 20092010 QX56