2005 INFINITI QX4 fuse box

DI-72
REAR VIEW MONITOR
Revision: October 20052005 QX56
System DescriptionEKS00BDF

When the A/T selector is in the reverse position, the display shows view to the rear of the vehicle.

Lines which indicate the vehicle clearance and distances are displayed on the monitor.
POWER SUPPLY AND GROUND
Power is supplied at all times

through 20A fuse (No. 31, located in the fuse and fusible link box)

to rear view camera control unit terminal 1.
When ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to rear view camera control unit terminal 2.
Ground is supplied

to rear view camera control unit terminal 3 and

to rear view camera terminal 2

through grounds B7 and B19.
AV COMMUNICATION LINE
Rear view camera control unit is connected to the following units with AV communication line. Each unit trans-
mits/receives data with AV communication line.

NAVI control unit

Display unit

Display control unit

AV switch
REAR VIEW CAMERA OPERATION
When ignition switch is in ON or START position, power is supplied

through 10A fuse (No. 51, located in the IPDM E/R)

to back-up lamp relay terminals 1 and 3.
When A/T selector lever is in reverse position, power is supplied

through back-up lamp relay terminal 2

to TCM terminal 7.
Then, when back-up lamp relay is energized,

from back-up lamp relay terminal 5

to rear view camera control unit terminal 4.
Then, rear view camera control unit is sent camera ON signal

through rear view camera control unit terminal 8

to rear view camera terminal 1.
An image taken by rear view camera is sent

through rear view camera terminals 3 and 4

to rear view camera control unit terminals 10 and 9.
Then an image is sent

through rear view camera control unit terminals 11 and 12

to display unit terminals 4 and 15.
An image of rear view will be projected on the display.
Side Distance Guideline
When A/T selector lever is in reverse position, rear view camera control unit is sent rear view camera guideline
image

through rear view camera control unit terminals 11 and 12

to display unit terminals 4 and 15.
Rear view camera guideline will be projected on the display.
Display shows image from rear view camera image and rear view camera guideline.

EM-70Revision: October 2005
ENGINE ASSEMBLY
2005 QX56
5. Remove the cowl extension. Refer to EI-18, "Removal and Installation" .
6. Remove the engine room cover using power tools.
7. Remove the air duct and air cleaner case assembly EM-14, "
REMOVAL" .
8. Disconnect the vacuum hose between the vehicle and engine and set it aside.
9. Remove the radiator assembly and hoses. Refer to CO-12, "
REMOVAL" .
10. Remove the drive belts. Refer to EM-12, "
Removal" .
11. Remove the fan blade. Refer to CO-15, "
REMOVAL" .
12. Disconnect the engine room harness from the fuse box and set it aside.
13. Disconnect the ECM.
14. Disconnect the engine room harness from the engine side and set it aside.
15. Disconnect the engine harness grounds.
16. Disconnect the power steering reservoir tank from the engine and move it aside.
17. Disconnect the power steering oil pump from the engine. Move it aside and secure it using suitable wire or
rope. Refer to PS-26, "
REMOVAL" .
18. Remove the A/C compressor bolts and set the compressor aside. Refer to ATC-179, "
REMOVAL" .
19. Disconnect the brake booster vacuum line.
20. Disconnect the EVAP line.
21. Disconnect the fuel hose at the engine side connection. Refer to EM-29, "
REMOVAL" .
22. Disconnect the heater hoses at cowl, and install plugs to avoid leakage of engine coolant.
23. Remove the A/T oil level indicator and indicator tube upper bolts.
24. Remove the front final drive assembly (4x4 only). Refer to FFD-11, "
REMOVAL" .
25. Remove the exhaust manifolds. Refer to EM-19, "
Removal and Installation" .
26. Install the engine slingers into the left bank cylinder head and
right bank cylinder head.
27. Remove the A/T. Refer to AT-244, "
Removal and Installation
(4x2)" or AT-247, "Removal and Installation (4x4)" .
28. Lift using hoist and secure the engine in position.
29. Remove the engine assembly from the vehicle, avoid interfer-
ence with the vehicle body.
CAUTION:

Before and during lifting, always check if any harnesses
are left connected.
30. Remove the parts that may restrict installation of the engine to the engine stand.
NOTE:
This procedure is described assuming that you use an engine stand mounting to the surface to which the
transmission mounts.
a. Remove the drive plate.

Holding the crankshaft pulley bolt, lock the crankshaft to remove the drive plate bolts.

Loosen the bolts diagonally.
WBIA0464E
Engine slinger torque: 45.0 N·m (4.6 kg-m, 33 ft-lb)
PBIC1556E

HOW TO USE THIS MANUAL
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Optional Splice
DESCRIPTION
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Num-
berItem Description
1 Power condition

This shows the condition when the system receives battery positive voltage (can be oper-
ated).
2 Fusible link

The double line shows that this is a fusible link.

The open circle shows current flow in, and the shaded circle shows current flow out.
3Fusible link/fuse loca-
tion

This shows the location of the fusible link or fuse in the fusible link or fuse box. For arrange-
ment, refer to PG section, POWER SUPPLY ROUTING.
4Fuse

The single line shows that this is a fuse.

The open circle shows current flow in, and the shaded circle shows current flow out.
5 Current rating

This shows the current rating of the fusible link or fuse.
6 Connectors

This shows that connector E3 is female and connector M1 is male.

The G/R wire is located in the 1A terminal of both connectors.

Terminal number with an alphabet (1A, 5B, etc.) indicates that the connector is SMJ connec-
tor. Refer to PG section, SMJ (SUPER MULTIPLE JUNCTION).
7 Optional splice

The open circle shows that the splice is optional depending on vehicle application.
8 Splice

The shaded circle shows that the splice is always on the vehicle.
9 Page crossing

This arrow shows that the circuit continues to an adjacent page.

The A will match with the A on the preceding or next page.
10 Common connector

The dotted lines between terminals show that these terminals are part of the same connector.
11 Option abbreviation

This shows that the circuit is optional depending on vehicle application.
12 Relay

This shows an internal representation of the relay. For details, refer to PG section, STAN-
DARDIZED RELAY.
13 Connectors

This shows that the connector is connected to the body or a terminal with bolt or nut.

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HOW TO USE THIS MANUAL
Revision: October 20052005 QX56
14 Wire color

This shows a code for the color of the wire.
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light GreenBR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe color as shown
below:
Example: L/W = Blue with White Stripe
15 Option description

This shows a description of the option abbreviation used on the page.
16 Switch

This shows that continuity exists between terminals 1 and 2 when the switch is in the A posi-
tion. Continuity exists between terminals 1 and 3 when the switch is in the B position.
17 Assembly parts

Connector terminal in component shows that it is a harness incorporated assembly.
18 Cell code

This identifies each page of the wiring diagram by section, system and wiring diagram page
number.
19 Current flow arrow

Arrow indicates electric current flow, especially where the direction of standard flow (vertically
downward or horizontally from left to right) is difficult to follow.

A double arrow “ ” shows that current can flow in either direction depending on cir-
cuit operation.
20 System branch

This shows that the system branches to another system identified by cell code (section and
system).
21 Page crossing

This arrow shows that the circuit continues to another page identified by cell code.

The C will match with the C on another page within the system other than the next or preced-
ing pages.
22 Shielded line

The line enclosed by broken line circle shows shield wire.
23Component box in
wave line

This shows that another part of the component is also shown on another page (indicated by
wave line) within the system.
24 Component name

This shows the name of a component.
25 Connector number

This shows the connector number.

The letter shows which harness the connector is located in.

Example: M : main harness. For detail and to locate the connector, refer to PG section "Main
Harness", “Harness Layout”. A coordinate grid is included for complex harnesses to aid in
locating connectors.
26 Ground (GND)

The line spliced and grounded under wire color shows that ground line is spliced at the
grounded connector.
27 Ground (GND)

This shows the ground connection. For detailed ground distribution information, refer to
"Ground Distribution" in PG section.
28 Connector views

This area shows the connector faces of the components in the wiring diagram on the page.
29 Common component

Connectors enclosed in broken line show that these connectors belong to the same compo-
nent.
30 Connector color

This shows a code for the color of the connector. For code meaning, refer to wire color codes,
Number 14 of this chart.
31Fusible link and fuse
box

This shows the arrangement of fusible link(s) and fuse(s), used for connector views of
"POWER SUPPLY ROUTING" in PG section.
The open square shows current flow in, and the shaded square shows current flow out.
32 Reference area

This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors
(J/C) exists on the PG section. Refer to "Reference Area" for details. Num-
berItem Description

POWER WINDOW SYSTEM
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POWER WINDOW SYSTEMPFP:25401
Component Parts and Harness Connector LocationEIS005XN
System DescriptionEIS005XO
Power is supplied at all time

from 50A fusible link (letter f , located in the fuse and fusible link box)

to BCM terminal 70

through BCM terminal 69

to main power window and door lock/unlock switch terminal 19

to power window and door lock/unlock switch RH terminal 10.
With ignition switch in ON or START position,
Power is supplied

through 10A fuse (No. 59, located in the fuse and relay box)

to BCM terminal 38

through BCM terminal 68

to main power window and door lock/unlock switch terminal 10.

to rear power vent window relays (OPEN and CLOSE) terminal 1.
With ignition switch in ON or START position,
Ground is supplied

to BCM terminal 67

to main power window and door lock/unlock switch terminal 17

to power window and door lock/unlock switch RH terminal 11

through body grounds M57, M61 and M79.
LIIA1890E

POWER WINDOW SYSTEM
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BCM Power Supply and Ground Circuit CheckEIS005XY
1. CHECK FUSE AND FUSIBLE LINK

Check 10A fuse (No. 4, located in the fuse block (J/B)]

Check 10A fuse (No. 59, located in the fuse and relay box)

Check 50A fusible link (letter f located in the fuse and fusible link box)
NOTE:
Refer to GW-15, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "PRECAUTIONS" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M18, M20 terminals 38, 70 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 terminal 67 and ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.38 (W/L) - Ground : Battery voltage
70 (W/B) - Ground : Battery voltage
LIIA0914E
67 (B) - Ground : Continuity should exist.
LIIA0915E

REAR WINDOW DEFOGGER
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Revision: October 20052005 QX56
REAR WINDOW DEFOGGERPFP:25350
Component Parts and Harness Connector LocationEIS005YM
System DescriptionEIS005YN
The rear window defogger system is controlled by BCM (body control module) and IPDM E/R (intelligent
power distribution module engine room).
The rear window defogger operates only for approximately 15 minutes.
Power is supplied at all times

through 15A fuses (No. 43, 46, and 47 located in the IPDM E/R)

to rear window defogger relay and heated mirror relay (located in the IPDM E/R)

through 50A fusible link (letter f , located in the fuse and fusible link box)

to BCM terminal 70.
With the ignition switch turned to ON or START position,
Power is supplied

through ignition switch

to rear window defogger relay (located in the IPDM E/R)

through 10A fuse (No. 59, located in the fuse and relay box)

to BCM terminal 38

through 10A fuse [No. 8, located in the fuse block (J/B)]

to front air control terminal 14.
Ground is supplied

to BCM terminal 67

to front air control terminal 1
LIIA1981E

REAR WINDOW DEFOGGER
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BCM Power Supply and Ground Circuit CheckEIS005YW
1. CHECK FUSES AND FUSIBLE LINK

Check 10A fuse (No. 8, located in the fuse block (J/B)]

Check 10A fuse (No. 59, located in the fuse and relay box)

Check 50A fusible link (letter f located in the fuse and fusible link box)
NOTE:
Refer to GW-77, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M18, M20 terminals 38, 70
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 terminal 67 and ground.
OK or NG
OK >> BCM power supply and ground circuit is OK.
NG >> Repair or replace harness.70 (W/B) - Ground : Battery voltage
38 (W/L) - Ground : Battery voltage
LIIA0914E
67 (B) - Ground : Continuity should exist.
LIIA0915E