fuse box INFINITI QX56 2007 Factory User Guide

BL-38
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
• to BCM terminal 70
• through 50A fusible link (letter f , located in the fuse and fusible link box).
• to BCM terminal 57
• through 15A fuse [No. 22, located in the fuse block (J/B)].
When the key is inserted in the key switch and key lock solenoid, power is supplied
• to BCM terminal 37
• through key switch and key lock solenoid terminals 3 and 4
• through 10A fuse [No. 19, located in the fuse block (J/B)].
When the ignition switch is ACC or ON, power is supplied
• to BCM terminal 11
• through 10A fuse [No. 4, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied
• to BCM terminal 38
• through 10A fuse (No. 59, located in the fuse and relay box).
When the front door switch LH is ON (door is OPEN), ground is supplied
• to BCM terminal 47
• through front door switch LH terminal 2
• through front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied
• to BCM terminal 12
• through front door switch RH terminal 2
• through front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
• to BCM terminal 48
• through rear door switch LH terminal 2
• through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
• to BCM terminal 13
• through rear door switch RH terminal 2
• through rear door switch RH case ground.
When the back door latch (door ajar switch) is ON (door is OPEN), ground is supplied
• to BCM terminal 43
• through back door latch (door ajar switch) terminal 7,
• through back door latch (door ajar switch) terminal 8,
• through body grounds B7 and B19.
Keyfob signal is input into the BCM from the remote keyless entry receiver.
The remote keyless entry system controls operation of the
• power door lock
• back door opener
• interior lamp and step lamps
• panic alarm
• hazard and horn reminder
• keyless power window down (open)
• auto door lock operation
OPERATING PROCEDURE
• When the keyfob is operated, the signal from the keyfob is sent and the remote keyless entry receiver
receives the signal and sends it to the BCM. The BCM only locks/unlocks the doors if the ID number
matches. (Remote control entry functions)
• Using the keyfob, the transmitter sends radio waves to the remote keyless entry receiver, which then sends
the received waves to the BCM. Only if the ID number matches does the BCM lock/unlock the doors.
(Remote control door function)
• Unless the key is inserted into the ignition key cylinder or one of the doors is opened within 1 minute after the
UNLOCK switch on the keyfob is pressed, all the doors are automatically locked. (Auto lock function)
• When a door is locked or unlocked, the vehicle turn signal lamps flash and the horn sounds to verify opera-
tion. (Active check function)
• When the key is in the ignition key cylinder (when the key switch is ON) and one of the doors is open, the
door lock function does not work even when the door lock is operated with the keyfob.
• Keyfob ID set up is available.
• If a keyfob is lost, a new keyfob can be set up. A maximum of 5 IDs can be set up simultaneously.
Remote Control Entry Functions

BL-60
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000003532938
LIIA2374E
1. Fuse block (J/B) 2. Fuse and fusible link box 3. IPDM E/R fuse layout
4. IPDM E/R E122, E123, E124 5. Steering column
(view with instrument panel LH re-
moved)6. Data link connector M22
(view with instrument panel LH re-
moved)
7. BCM M18, M19, M20
(view with instrument panel LH re-
moved)8. Horn E3
(view with grille removed)9. Front door lock assembly LH (key
cylinder switch) D14

BL-62
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
• through 10A fuse [No.19, located in the fuse block (J/B)]
• to combination meter (security indicator lamp) terminal 8 and
• through 50A fusible link (letter f , located in the fuse and fusible link box)
• to BCM terminal 70
• through 15A fuse [No. 22, located in the fuse block (J/B)]
• to BCM terminal 57
• through 15A fuse (No. 25, located in the fuse and fusible link box)
• to horn relay terminal 2
• through 20A fuse (No. 52, located in the IPDM E/R) and
• through 20A fuse (No. 53, located in the IPDM E/R),
• to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied• through 10A fuse [No. 4, located in the fuse block (J/B)]
• to BCM terminal 11.
Ground is supplied
• to BCM terminal 67
• through body grounds M57, M61 and M79 and
• to IPDM E/R terminals 38 and 59
• through body ground E9, E15 and E24.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and glass hatch.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and glass hatch
are closed and the doors are locked.
When a door is open, BCM terminal 12, 13, 42, 47 or 48 receives a ground signal from each door switch.
When front door LH is unlocked, BCM terminal 22 receives a signal from terminal 14 of main power window
and door lock/unlock switch.
When front door RH is unlocked, BCM terminal 22 receives a signal from terminal 16 of power window and
door lock/unlock switch RH or the rear power window switch LH or RH.
When the back door is open, BCM terminal 43 receives a ground signal
• from terminal 7 of the back door latch (door ajar switch)
• through body grounds B7 and B19.
When the glass hatch is open, BCM terminal 42 receives a ground signal
• from terminal + of the glass hatch ajar switch
• through glass hatch ajar switch case ground.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by
• opening a door
• opening the hood
• opening the glass hatch
• unlocking door without using the key or keyfob.
The vehicle security system will be triggered once the system is in armed phase,
• when BCM receives a ground signal at terminals 12, 13, 47, 48 (door switch), terminal 42 (glass hatch ajar
switch) or terminal 43 [back door latch (door ajar switch)], or IPDM E/R terminal 41 (hood switch) receives a
ground signal.
Power is supplied at all times
• to horn relay terminal 2
• through 15A fuse (No. 25, located in fuse and fusible link box).
When the vehicle security system is triggered, ground is supplied intermittently
• from IPDM E/R terminal 45
• to headlamp high relay and
• to horn relay terminal 1.
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door must be unlocked with the key or keyfob.
When the key is used to unlock the front door LH, BCM terminal 22 receives signal
• from terminal 14 of the main power window and door lock/unlock switch.

BL-126
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
OK or NG
OK >> GO TO 3.
NG >> Check the following:
• 50A fusible link (letter f , located in fuse and fusible
link box)
• Harness for open or short between fuse and BCM
connector. Ref. Part No. C1
3.CHECK IGN SW. ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector M18 terminal 38 and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following:
• 10A fuse [No. 59, located in the fuse and relay box]
• Harness for open or short between fuse and BCM
connector. Ref. part No. C2
4.CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Check continuity between BCM connector M18 terminal 67 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness. Ref. part No. C3
5.REPLACE BCM
1. Replace BCM. Ref. part No. A
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
YES >> BCM is malfunctioning.
NO >> ECM is malfunctioning.
• Replace ECM. Ref. part No. B
• Perform initialization or re-communicating function.
• For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
• For re-communicating function, refer to BL-117, "
ECM Re-communicating Function".
Diagnosis Procedure 2INFOID:0000000003532996
Self-diagnostic results:
“DIFFERENCE OF KEY” displayed on CONSULT-II screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS70 - Ground :Battery voltage
LIIA1279E
38 - Ground :Battery voltage
LIIA0527E
67 - Ground :Continuity should exist.
LIIA1040E

DI-36
< SERVICE INFORMATION >
WARNING CHIME
WARNING CHIME
Component Parts and Harness Connector LocationINFOID:0000000003533510
System DescriptionINFOID:0000000003533511
FUNCTION
Power is supplied at all times
• through 50A fusible link (letter f, located in the fuse and fusible link box)
• to BCM terminal 70,
• through 10A fuse [No. 19, located in the fuse block (J/B)]
1. Fuse block (J/B) 2. Fuse and fusible link box 3. Fuse and relay box
4. Combination meter M24 5. Combination switch (lighting switch)
M286. BCM M18, M19, M20 (view with in-
strument lower panel LH removed)
7. Front door switch LH B8 8. Key switch and key lock solenoid
M279. Seat belt buckle pre-tensioner as-
sembly LH (seat belt buckle switch)
B74
WKIA4594E

WARNING CHIME
DI-37
< SERVICE INFORMATION >
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• to key switch and key lock solenoid terminal 3.
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.
Ground is supplied
• to BCM terminal 67
• through body grounds M57, M61, and M79.
NOTE:
When ignition key warning chime, light warning chime, and seat belt warning chime are required at the same
time, the priorities for each chime are the following.
1. Light warning chime
2. Ignition key warning chime
3. Seat belt warning chime
IGNITION KEY WARNING CHIME
With the key inserted in the ignition switch, the ignition switch in OFF position, and the driver's door open, the
warning chime will sound.
Power is supplied
• through key switch and key lock solenoid terminal 4
• to BCM terminal 37.
Ground is supplied
• to BCM terminal 47
• through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter via CAN
communication lines. When the combination meter receives key warning signal, it sounds warning chime.
LIGHT WARNING CHIME
With the key removed from the ignition switch, the driver's door open, and the lighting switch (part of the com-
bination switch) in 1st or 2nd position, the warning chime will sound. [Except when headlamp battery saver
control operates (5 minutes after ignition switch is turned to OFF or ACC position) and headlamps do not illu-
minate.]
Signal is supplied
• from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10
• to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position. Refer to LT-72, "
Combination Switch Reading Function".
Ground is supplied
• to BCM terminal 47
• through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects headlamps are illuminated, and sends light warning signal to combination meter CAN communi-
cation lines. When the combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
When the ignition switch is turned ON with the seat belt unfastened [seat belt buckle pre-tensioner assembly
LH (seat belt buckle switch) unfastened], warning chime will sound for approximately 6 seconds.
Ground is supplied
• to combination meter terminal 27
• through seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) terminal 4.
Seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) terminal 3 is grounded through body
grounds B7 and B19.
The combination meter sends seat belt buckle switch LH unfastened signal to BCM via CAN communication
line.
BCM receives seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) unfastened signal from
combination meter via CAN communication line, and sends seat belt warning signal to the combination meter
via CAN communication line. When the combination meter receives the seat belt warning signal, it sounds the
warning chime. The BCM controls the (6 second) duration of the seat belt warning chime.
CAN Communication System DescriptionINFOID:0000000003533512
Refer to LAN-4.

DI-58
< SERVICE INFORMATION >
REAR VIEW MONITOR
REAR VIEW MONITOR
Component Parts and Harness Connector LocationINFOID:0000000003533538
System DescriptionINFOID:0000000003533539
• 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)
1. Fuse block (J/B) 2. Fuse and fusible link box 3. IPDM E/R E119
4. Rear view camera D504 5. Data link connector M22 6. A/T assembly F9
7. Rear view camera control unit B73
(view of left rear body)8. Display unit M93 9. Display control unit M94, M95
10. AV switch M98 11. Back-up lamp relay M73
WKIA4596E

ENGINE ASSEMBLY
EM-75
< SERVICE INFORMATION >
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6. Remove the engine room cover using power tools.
7. Remove the air duct and air cleaner case assembly. Refer to EM-15, "
Removal and Installation".
8. Disconnect the vacuum hose between the vehicle and engine and set it aside.
9. Remove the radiator assembly and hoses. Refer to CO-13, "
Removal and Installation".
10. Remove the drive belts. Refer to EM-15, "
Removal and Installation".
11. Remove the fan blade. Refer to CO-16, "
Removal and Installation (Crankshaft Driven Type)".
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-21, "
Removal and Installation".
18. Remove the A/C compressor bolts and set the compressor aside. Refer to ATC-154, "
Removal and Instal-
lation for Compressor" (ATC).
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-31, "
Removal and Installation".
22. Disconnect the heater hoses at the 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 (4WD only). Refer to FFD-12, "
Removal and Installation".
25. Remove the exhaust manifolds. Refer to EM-21, "
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-223, "
Removal and Installation
(2WD)" or AT-225, "Removal and Installation (4WD)".
28. Lift using a 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.
WBIA0795E
Engine slinger torque: 45.0 N·m (4.6 kg-m, 33 ft-lb)
WBIA0715E

GI-16
< SERVICE INFORMATION >
HOW TO USE THIS MANUAL
Optional Splice
DESCRIPTION
SGI942
Num-
berItem Description
1 Power condition • This shows the condition when the system receives battery positive voltage (can be operated).
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 connector.
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.

HOW TO USE THIS MANUAL
GI-17
< SERVICE INFORMATION >
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Harness Indication
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 circuit
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 preceding
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 lo-
cating connectors.
26 Ground (GND)• The line spliced and grounded under wire color shows that ground line is spliced at the ground-
ed 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 "POW-
ER 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