key INFINITI QX56 2007 Factory Service Manual

INTERIOR ROOM LAMP
LT-103
< SERVICE INFORMATION >
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• through grounds M57, M61 and M79.
When a signal, or combination of signals is received by BCM, ground is supplied
• through BCM terminal 63
• to door mirror LH and RH terminal 13
• to front room/map lamp assembly terminal 1
• through front room/map lamp assembly terminal 2
• to personal lamps terminal 1, and
• through BCM terminal 49
• to cargo lamp terminal 1.
With power and ground supplied, the lamps illuminate.
SWITCH OPERATION
When any door switch is ON (door is opened), ground is supplied
• to front and rear step lamps LH and RH and foot lamp LH and RH terminal –
• through BCM terminal 62.
And power is supplied
• through BCM terminal 56
• to front and rear step lamps LH and RH terminal +
• to ignition keyhole illumination terminal +
• to door mirror LH and RH terminal 12
• to front room/map lamp assembly terminal 6
• to vanity lamp LH and RH terminal 1
• to personal lamp 2nd row and 3rd row terminal 3
• to cargo lamp terminal 2, and
• to foot lamp LH and RH terminal +.
When map lamp switch is ON, ground is supplied
• to front room/map lamp assembly terminal 5
• through grounds M57, M61 and M79.
When vanity lamp (LH and RH) is ON, ground is supplied
• to vanity lamp (LH and RH) terminal 2
• through grounds M57, M61 and M79.
When cargo lamp is ON, ground is supplied through cargo lamp case ground.
ROOM LAMP TIMER OPERATION
When lamp switch is in DOOR position and all conditions below are met, BCM performs timer control (maxi-
mum 30 seconds) for interior room lamp and map lamp ON/OFF.
Power is supplied
• through 10A fuse [No. 19, located in the fuse block (J/B)]
• to key switch and key lock solenoid terminal 3.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
Serial data is supplied
• to BCM terminal 22
• through main power window and door lock/unlock switch terminal 14.
At the time that front door LH is opened, BCM detects that front door LH is unlocked. It determines that interior
room lamp and map lamp timer operation conditions are met, and turns the interior room lamps ON for 30 sec-
onds.
Key is in ignition key cylinder (key switch ON), power is supplied
• through key switch and key lock solenoid terminal 4
• to BCM terminal 37.
When key is removed from key switch and key lock solenoid (key switch OFF), power supply to BCM terminal
37 is terminated. BCM detects that key has been removed, determines that interior room lamp and map lamp
timer conditions are met, and turns the interior room lamps ON for 30 seconds.
When front door LH opens → closes, and the key is not inserted in the key switch and key lock solenoid (key
switch OFF), BCM terminal 47 changes between 0V (door open) → 12V (door closed). The BCM determines
that conditions for interior room lamp operation are met and turns the interior room lamp ON for 30 seconds.
Timer control is canceled under the following conditions.
• Front door LH is locked [when locked by keyfob, main power window and door lock/unlock switch, or front
door lock assembly LH (key cylinder switch)]
• Front door LH is opened (front door switch LH turns ON)
• Ignition switch ON.
INTERIOR LAMP BATTERY SAVER CONTROL

LT-104
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
If interior lamp is left “ON”, it will not be turned off even when door is closed.
BCM turns off interior lamp automatically to save battery 30 minutes after ignition switch is turned off.
BCM controls interior lamps listed below:
• Vanity lamp
• Room/map lamp
• Cargo lamp
• Personal lamp
• Step lamps
• Puddle lamps
• Foot lamps
• Ignition keyhole illumination
After lamps turn OFF by the battery saver system, the lamps illuminate again when
• signal received from keyfob, or main power window and door lock/unlock switch or front door lock assembly
LH (key cylinder switch) is locked or unlocked
• door is opened or closed
• key is removed from ignition key cylinder (key switch OFF) or inserted in ignition key cylinder (key switch
ON).
Interior lamp battery saver control period can be changed by the function setting of CONSULT-II.

LT-114
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
3. Carry out the Preliminary Check. Refer to LT-114, "Preliminary Check" .
4. Check symptom and repair or replace the component.
5. Does the interior room lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary CheckINFOID:0000000003533461
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection" .
CONSULT-II Function (BCM)INFOID:0000000003533462
Refer to BCS-16, "CONSULT-II Function (BCM)" .
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure" .
WORK SUPPORT
Display Item List
Reference between "MODE" and "TIME" for "TURN ON/OFF".
DATA MONITOR
Display Item List
Item Description CONSULT-II
SET I/L D-UNLCK INTCONThe 30 seconds operating function of the interior room lamps and the
ignition keyhole illumination can be selected when front door LH is re-
leased (unlocked). ON/OFF
ROOM LAMP ON TIME SETThe time in order to escalate illumination can be adjusted when the inte-
rior room lamps and the ignition keyhole illumination is turned on.MODE 1 - 7
ROOM LAMP OFF TIME SETThe time in order to diminish illumination can be adjusted when the inte-
rior room lamps and the ignition keyhole illumination is turned off.MODE 1 - 7
MODE 123 4 5 6 7
Time (sec.) 0.5 1 2 3 4 5 0
Monitor item Contents
IGN ON SW "ON/OFF" Displays "IGN position (ON)/OFF, ACC position (OFF)" judged from the ignition switch signal.
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.

INTERIOR ROOM LAMP
LT-115
< SERVICE INFORMATION >
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ACTIVE TEST
Display Item List
Room/Map Lamp Control Does Not OperateINFOID:0000000003533463
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-114, "
CONSULT-II Function (BCM)" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.ACTIVE TEST
1. Select "BCM" on CONSULT-II. Select "INT LAMP" active test.
2. When switch is in DOOR position, use active test to make sure
interior room lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-24, "BCM" .
NG >> GO TO 3.
3.CHECK INTERIOR ROOM LAMP INPUT
1. Turn ignition switch OFF.
2. Check voltage between front room/map lamp assembly harness
connector R102 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4.CHECK INTERIOR ROOM LAMP CIRCUIT
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.Monitor item Contents
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
Room lamps should turn ON.
LKIA0092E
1 - Ground : Battery voltage should exist.
WKIA1479E

LT-118
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
1. Disconnect BCM connector and front step lamp LH connector.
2. Check continuity between BCM harness connector M20 terminal
56 and front step lamp LH harness connector D11 terminal +.
OK or NG
OK >> Replace BCM if front step lamp does not work after set-
ting the connector again. Refer to BCS-24, "
BCM" .
NG >> Repair harness or connector.
All Interior Room Lamps Do Not OperateINFOID:0000000003533466
1.CHECK POWER SUPPLY CIRCUIT
1. All interior room lamp switches are OFF.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M20 terminal
56 and ground.
OK or NG
OK >> Repair harness or connector. To prevent making a short
circuit, be sure to disconnect battery negative cable after
repairing harness, and then reconnect.
NG >> Replace BCM. Refer to BCS-24, "
BCM" .
Ignition Keyhole Illumination Control Does Not OperateINFOID:0000000003533467
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-114, "
CONSULT-II Function (BCM)" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.ACTIVE TEST
1. Select "BCM" on CONSULT-II. Select "INT LAMP".
2. Select "IGN ILLUM" active test to make sure lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-24, "BCM".
NG >> GO TO 3.
3.CHECK IGNITION KEYHOLE ILLUMINATION INPUT+ - 56 : Continuity should exist.
WKIA1485E
56 - Ground : Battery voltage should exist.
WKIA1486E
SKIA5930E
Ignition keyhole illumination should turn ON.
SKIA3992E

INTERIOR ROOM LAMP
LT-119
< SERVICE INFORMATION >
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1. Check voltage between ignition keyhole illumination harness
connector M150 terminal + and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.
4.CHECK IGNITION KEYHOLE ILLUMINATION BULB
1. Turn ignition switch OFF.
2. Disconnect ignition keyhole illumination connector.
3. Check continuity between ignition keyhole illumination terminals
+ and –.
OK or NG
OK >> GO TO 5.
NG >> Replace ignition keyhole illumination.
5.CHECK IGNITION KEYHOLE ILLUMINATION CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M18 terminal
1 and ignition keyhole illumination harness connector M150 ter-
minal –.
OK or NG
OK >> Replace BCM if ignition keyhole illumination does not
work after setting the connector again. Refer to BCS-24,
"BCM" .
NG >> Repair harness or connector.
6.CHECK IGNITION KEYHOLE ILLUMINATION CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and keyhole illumination connector.
3. Check continuity between BCM harness connector M20 terminal
56 and ignition keyhole illumination harness connector M150
terminal +.
OK or NG
OK >> Replace BCM if ignition keyhole illumination does not
work after setting the connector again. Refer to BCS-24,
"BCM" .
NG >> Repair harness or connector.+ - Ground : Battery voltage should exist.
WKIA1909E
+ - – : Continuity should exist.
WKIA3556E
– - 1 : Continuity should exist.
WKIA1911E
+ - 56 : Continuity should exist.
WKIA1912E

LT-138
< SERVICE INFORMATION >
BULB SPECIFICATIONS
BULB SPECIFICATIONS
HeadlampINFOID:0000000003533474
*: Always check with the Parts Department for the latest parts information.
Exterior LampINFOID:0000000003533475
*: Always check with the Parts Department for the latest parts information.
Interior Lamp/IlluminationINFOID:0000000003533476
*: Always check with the Parts Department for the latest parts information.Item Wattage (W)*
Low35 (D2R)
High60 (HB3)
Item Wattage (W)*
Front combination lampParking lamp (inner) 7
Parking lamp (outer) 7
Side marker lamp (front) 7
Rear combination lampStop/Tail lamp *
Side marker lamp (rear) *
Turn signal lamp 27
Back-up lamp*
Turn/fog lampFog 55 (H3)
Turn 21
License plate lamp5
High-mounted stop lamp*
Item Wattage (W)*
Glove box lamp3.4
Room/Map lamp8
Console box illumination lamp*
A/T device lamp2
Foot lamp3.4
Ste p lam p3.8
Cargo lamp7
Vanity lamp1.32
Personal lamp5
Puddle lamp8
Ignition keyhole illumination lamp0.74

LU-14
< SERVICE INFORMATION >
OIL PUMP
OIL PUMP
Removal and InstallationINFOID:0000000003531559
REMOVAL
1. Remove front cover. Refer to EM-38, "Removal and Installation".
2. Remove the oil pump drive spacer.
3. Remove the oil pump.
INSTALLATION
Installation is in the reverse order of removal, paying attention of the following:
• When inserting the oil pump drive spacer, align the crankshaft key
and the flat face of the inner rotor.
• If they are not aligned, rotate the oil pump inner rotor by hand.
• Make sure that the each part is aligned and tap lightly until it
reaches the end.
INSPECTION AFTER INSTALLATION
• Start the engine, and check for leaks of engine oil.
• Stop engine and wait 10 minutes.
• Check level and add engine oil as required. Refer to LU-8, "
Inspection".
WBIA0415E
1. Oil pump body 2. Outer rotor 3. Inner rotor
4. Oil pump cover 5. Oil pump drive spacer 6. Regulator valve
7. Regulator spring 8. Regulator plug
KBIA2512E
KBIA2490E

PG-16
< SERVICE INFORMATION >
POWER SUPPLY ROUTING CIRCUIT
Fuse
INFOID:0000000003533832
• If fuse is blown, be sure to eliminate cause of incident before
installing new fuse.
• Use fuse of specified rating. Never use fuse of more than specified
rating.
• Do not partially install fuse; always insert it into fuse holder prop-
erly.
• Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not
used for a long period of time.
Fusible LinkINFOID:0000000003533833
A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is
questionable, use circuit tester or test lamp.
CAUTION:
• If fusible link should melt, it is possible that critical circuit (power supply or large current carrying
circuit) is shorted. In such a case, carefully check and eliminate cause of incident.
• Never wrap outside of fusible link with vinyl tape.
• Never let fusible link touch any other wiring harness, vinyl or rubber parts.
Circuit Breaker (Built Into BCM)INFOID:0000000003533834
For example, when current is 30A, the circuit is broken within 8 to 20
seconds.
A circuit breaker is used for the following systems:
• Power windows
• Power door locks
• Remote keyless entry system
• Power sunroof
• Rear window wiper
CEL083
SBF284E

PG-24
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
43 L/Y Wiper auto stop signal InputON or
STARTWiper switch OFF, LO, INT Battery voltage
44 BRDaytime light relay
controlInput ONDaytime light system active 0V
Daytime light system inactive Battery voltage
45 G/W Horn relay control Input ONWhen door locks are operated
using key fob (OFF → ON)*1Battery voltage → 0V
46 GRFuel pump relay con-
trolInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 OThrottle control motor
relay controlInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
48 B/RStarter relay (inhibit
switch)InputON or
STARTSelector lever in "P" or "N" 0V
Selector lever any other posi-
tionBattery voltage
49 R/L Trailer tow relay Output ONLighting
switch must
be in the 1st
positionOFF 0V
ON Battery voltage
50 W/R Front fog lamp (LH) OutputON or
STARTLighting
switch must
be in the 2nd
position
(LOW beam
is ON) and
the front fog
lamp switchOFF 0V
ON Battery voltage
51 W/R Front fog lamp (RH) OutputON or
STARTLighting
switch must
be in the 2nd
position
(LOW beam
is ON) and
the front fog
lamp switchOFF 0V
ON Battery voltage
52 LLH low beam head-
lampOutput — Lighting switch in 2nd position Battery voltage
54 R/YRH low beam head-
lampOutput — Lighting switch in 2nd position Battery voltage
55 GLH high beam head-
lampOutput —Lighting switch in 2nd position
and placed in HIGH or PASS
positionBattery voltage
56L/W*2
Y*3LH high beam head-
lampOutput —Lighting switch in 2nd position
and placed in HIGH or PASS
positionBattery voltage
57 R/LParking, license, and
tail lampOutput ONLighting
switch 1st po-
sitionOFF 0V
ON Battery voltage
59 B Ground Input — — 0V
60 B/WRear window defog-
ger relayOutputON or
STARTRear defogger switch ON Battery voltage
Rear defogger switch OFF 0V Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value
(Approx.) Igni-
tion
switchOperation or condition