2006 INFINITI QX56 lock

INTERIOR ROOM LAMPLT-147
C
DE
F
G H
I
J
L
M A
B
LT
Revision: November 2009 2006 QX56
Terminals and Reference Values for BCMEKS00BB9
Terminal
No. Wire
color Signal name Measuring condition
Reference value
(Approx.)
Ignition
switch Operation or condition
1BR/W Ignition keyhole illumi-
nation signal
OFFDoor is locked. (SW OFF)
Battery voltage
Door is unlocked. (SW ON) 0V
12 R/L Front door switch RH
signal
OFFFront door
switch RH ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH
signal
OFFRear door
switch RH ON (open)
0V
OFF (closed) Battery voltage
22 W/V Bus ——
37 B/R Key-in switch detection
signal OFFVehicle key is removed.
0V
Vehicle key is inserted. Battery voltage
38 W/L Ignition power supply ON —Battery voltage
39 L CAN-H —— —
40 P CAN-L —— —
42 GR Glass hatch ajar switch
signal OFFGlass hatch
ajar switch ON (open)
0V
OFF (closed) Battery voltage
43 R/B Back door latch (door
ajar switch) signal
OFFBack door
latch (door
ajar switch) ON (open)
0V
OFF (closed) Battery voltage
47 SB Front door switch LH
signal
OFFFront door
switch LH ON (open)
0V
OFF (closed) Battery voltage
48 R/Y Rear door switch LH
signal
OFFRear door
switch LH ON (open)
0V
OFF (closed) Battery voltage
49 R Luggage lamp output OFF Any door is open (ON)
0V
All doors are closed (OFF) Battery voltage
56 R/G Battery saver output
signal OFF
30 minutes after ignition switch is
turned to OFF 0V
ON — Battery voltage
57 Y/R Battery power supply OFF —Battery voltage
62 R/W Step lamp signal OFFAny door is open (ON)
0V
All doors are closed (OFF) Battery voltage
63 L Interior room/map lamp
signal OFFEach interior
lamp switch
in DOOR
position Any
door
switch ON
(open) 0V
OFF
(closed) Battery voltage
67 B Ground ON— 0V
70 W/B Battery power supply OFF —Battery voltage
PIIA2344J

LT-150
INTERIOR ROOM LAMP
Revision: November 20092006 QX56
4. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
WORK SUPPORT
Operation Procedure
1. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on "SELECT DIAG MODE" screen.
3. Touch "SET I/L D-UNLCK INTCON" on "SELECT WORK ITEM" screen.
4. Touch "START".
5. Touch "CHANGE SETT".
6. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
7. Touch "END".
Display Item List
Reference between "MODE" and "TIME" for "TURN ON/OFF".
DATA MONITOR
Operation Procedure
1. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on "SELECT MONITOR ITEM" screen.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is
selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".
PKIA5226E
Item Description CONSULT-II
SET I/L D-UNLCK INTCON The 30 seconds operating function of the interior room lamps and the
ignition keyhole illumination can be selected when front door LH is
released (unlocked). ON/OFF
ROOM LAMP ON TIME SET The time in order to escalate illumination can be adjusted when the
interior room lamps and the ignition keyhole illumination is turned on. MODE 1 - 7
ROOM LAMP OFF TIME SET The time in order to diminish illumination can be adjusted when the
interior room lamps and the ignition keyhole illumination is turned off. MODE 1 - 7
MODE 1 2 3 4 5 6 7
Time (sec.) 0.5 1 2 3 4 5 0
All signals Monitors all the signals.
Selection from menu Selects and monitors the individual signal.

INTERIOR ROOM LAMPLT-151
C
DE
F
G H
I
J
L
M A
B
LT
Revision: November 2009 2006 QX56
Display Item List
ACTIVE TEST
Operation Procedure
1. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" or "OFF" deactivates the operation.
Display Item List
Room/Map Lamp Control Does Not OperateEKS00BBD
1. CHECK EACH SWITCH
Select "BCM" on CONSULT-II. With "INT LAMP" data monitor, make
sure switches listed in display item list turn ON-OFF linked with
switch operation. Refer to LT- 1 5 1 , "
Display Item List" for switches
and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
Monitor item Contents
IGN ON SW "ON/OFF"Displays "IGN position (ON)/OFF, ACC position (OFF)" judged from the ignition switch sig-
nal.
KEY ON SW "ON/OFF" Displays "Key inserted (ON)/key removed (OFF)" status judged from the key switch signal.
DOOR SW-DR "ON/OFF"Displays status of the front door LH as judged from the front door switch LH signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW-AS "ON/OFF"Displays "Door open (ON)/Door closed (OFF)" status, determined from front door switch RH
signal.
DOOR SW-RR "ON/OFF"Displays "Door open (ON)/Door closed (OFF)" status, determined from rear door switch RH
signal.
DOOR SW-RL "ON/OFF"Displays "Door open (ON)/Door closed (OFF)" status, determined from rear door switch LH
signal.
BACK DOOR SW "ON/OFF" Displays "Door open (ON)/Door closed (OFF)" status, determined from back door latch
(door ajar switch) signal.
KEY CYL LK-SW "ON/OFF" Displays "Door locked (ON)" status, determined from front door lock assembly LH (key cylin-
der switch) in front door LH.
KEY CYL UN-SW "ON/OFF" Displays "Door unlocked (OFF)" status, determined from front door lock assembly LH (key
cylinder switch) in front door LH.
CDL LOCK SW "ON/OFF"Displays "Door locked (ON)/Door unlocked (OFF)" status, determined from locking detection
switch in front door LH.
CDL UNLOCK SW "ON/OFF" Displays "Door unlocked (OFF)" status, determined from locking detection switch in front
door RH.
KEYLESS LOCK "ON/OFF" Displays "Locked (ON)/Other (OFF)" status, determined from lock signal.
KEYLESS UNLOCK "ON/OFF" Displays "Unlocked (ON)/Other (OFF)" status, determined from unlock signal.
Test item Description
INT LAMP Interior room lamp can be operated by any ON-OFF operations.
IGN ILLUM Ignition keyhole illumination can be operated by ON-OFF operation.
SKIA5930E

ILLUMINATIONLT-157
C
DE
F
G H
I
J
L
M A
B
LT
Revision: November 2009 2006 QX56
ILLUMINATIONPFP:27545
Component Parts and Harness Connector LocationEKS00BBI
System DescriptionEKS00BBJ
Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination
switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated)
the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input
signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN
communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. This
relay, when energized, directs power to the illumination lamps, which then illuminate.
Power is supplied at all times

to ignition relay, located in the IPDM E/R, and

to tail lamp relay, located in the IPDM E/R, and

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

to BCM terminal 70, and

through 20A fuse (No. 53, located in the IPDM E/R)

to CPU of the IPDM E/R, and

through 10A fuse [No.19, located in fuse block (J/B)]
WKIA3471E

LT-158
ILLUMINATION
Revision: November 20092006 QX56

to combination meter terminal 8
With the ignition switch in the ON or START position, power is supplied

to ignition relay, located in the IPDM E/R, and

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

to BCM terminal 38, and

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 24.
Ground is supplied

to BCM terminal 67 and

to combination meter terminal 17

through grounds M57, M61 and M79, and

to IPDM E/R terminals 38 and 59

through grounds E9, E15 and E24.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil, which, when
energized, directs power

through 10A fuse (No. 36, located in the IPDM E/R)

through IPDM E/R terminal 49

to illumination control switch terminal 1

to power liftgate switch terminal 3

to front room/map lamp assembly (console box illumination) terminal 7

to hazard switch terminal 3

to rear sonar system OFF switch terminal 3

to glove box lamp terminal 1

to display control unit terminal 14

to 4WD shift switch terminal 7 (with 4-wheel drive)

to front air control terminal 23

to rear power vent window switch terminal 5

to DVD player terminal 12 (with DVD entertainment system)

to NAVI control unit terminal 61

to pedal adjusting switch terminal 5

to electric brake (pre-wiring) terminal 4 (with trailer tow)

to front and rear heated seat switch LH and RH terminal 5

to A/T device terminal 11

to VDC OFF switch terminal 3

to tow mode switch terminal 3

to headlamp aiming switch terminal 3

to clock terminal 3, and

through 10A fuse (No. 37, located in the IPDM E/R)

through IPDM E/R terminal 57

to AV switch terminal 3

to audio unit terminal 8

to rear air control terminal 1 and

to rear audio remote control unit terminal 6.
Illumination is controlled

through illumination control switch terminal 2

to power liftgate switch terminal 4

ILLUMINATIONLT-159
C
DE
F
G H
I
J
L
M A
B
LT
Revision: November 2009 2006 QX56

to front room/map lamp assembly (console box illumination) terminal 8

to AV switch terminal 4

to hazard switch terminal 4

to audio unit terminal 7

to rear sonar system OFF switch terminal 4

to 4WD switch terminal 8 (with 4-wheel drive)

to front air control terminal 24

to rear power vent window switch terminal 6

to DVD player terminal 10 (with DVD entertainment system)

to pedal adjusting switch terminal 6

to A/T device terminal 12

to front heated seat switch LH and RH terminal 6

to VDC OFF switch terminal 4

to tow mode switch terminal 4

to headlamp aiming switch terminal 4

to clock terminal 4 and

to combination meter terminal 18.
Ground is supplied

to illumination control switch terminal 3

to glove box lamp terminal 2

to display control unit terminal 3

to rear heated seat switches terminal 6

to electric brake (pre-wiring) terminal 1 (with trailer tow) and

to compass and thermometer terminal 7

through grounds M57, M61 and M79, and

to NAVI control unit terminal 1

to rear air control terminal 3 and

to rear audio remote control unit terminal 15

through grounds B117 and B132.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, the illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionEKS00BBK
Refer to LAN-26, "CAN COMMUNICATION" .

PREPARATIONLU-3
C
DE
F
G H
I
J
K L
M A
LU
Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service ToolsEBS00LMO
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
ST25051001
(J-25695-1)
Oil pressure gauge Measuring oil pressure
Maximum measuring range:
2,452 kPa (25 kg/cm
2 , 356 psi)
ST25052000
(J-25695-2)
Hose Adapting oil pressure gauge to cylinder block
KV10111100
(J-37228)
Seal cutter Removing steel oil pan and rear timing chain
case
KV10115801
(J-38956)
Oil filter wrench Removing and installing oil filter
a: 64.3 mm (2.531 in)
WS39930000
(—)
Tube presser Pressing the tube of liquid gasket
S-NT050
S-NT559
NT046
S-NT375
S-NT052

ENGINE OILLU-7
C
DE
F
G H
I
J
K L
M A
LU
Revision: November 2009 2006 QX56
ENGINE OILPFP:KLA92
InspectionEBS00LMS
OIL LEVEL

Before starting the engine make sure the vehicle is parked on a
flat and level surface, then check the oil level. If the engine is
already running, turn it off and allow 10 minutes before check-
ing.

Check that the oil level is within the low (L) and high (H) range
as indicated on the dipstick.

If the engine oil level is out of range, add oil as necessary. Refer
to GI-46, "
Recommended Chemical Products and Sealants" .
OIL APPEARANCE

Check the engine oil for a white milky appearance or excessive contamination.

If the engine oil is milky, it is highly probable that it is contaminated with engine coolant. Repair the broken
parts.
OIL LEAKAGE
Check for oil leakage around the following areas:

Oil pan

Oil pan drain plug

Oil pressure sensor

Oil filter

Oil cooler

Intake valve timing control cover

Intake valve timing control solenoid valve

Front cover

Mating surface between cylinder block and cylinder head

Mating surface between cylinder head and rocker cover

Crankshaft oil seal (front and rear)
OIL PRESSURE CHECK
CAUTION:

Be careful not to burn yourself, as engine oil may be hot.

Put the selector lever in the Park “P” position.
1. Check the engine oil level. Refer to LU-7, "
OIL LEVEL" .
2. Remove engine front undercover using power tool.
3. Disconnect the oil pressure sensor harness connector.
4. Remove the oil pressure sensor.
SMA954C
WBIA0538E