door lock INFINITI QX4 2005 Factory Service Manual

INTERIOR ROOM LAMP
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When the front door LH or front door RH door is unlocked by the door lock and unlock switch, BCM receives
serial data

to BCM terminal 22

through main power window and door lock/unlock switch terminal 14 or power window and door lock/
unlock switch RH terminal 16

through main power window and door lock/unlock switch terminal 17 or power window and door lock/
unlock switch RH terminal 11

through grounds M57, M61 and M79.
When the front door LH is unlocked by the key, the BCM receives serial data

to BCM terminal 22

through main power window and door lock/unlock switch terminal 14

through main power window and door lock/unlock switch terminal 6

through front door lock assembly LH (key cylinder switch) terminal 6

through front door lock assembly LH (key cylinder switch) terminal 5

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

LT-132
INTERIOR ROOM LAMP
Revision: October 20052005 QX56

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
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 assem-
bly 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-142
INTERIOR ROOM LAMP
Revision: October 20052005 QX56
Terminals and Reference Values for BCMEKS00BB9
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
1BR/WIgnition keyhole illumi-
nation signalOFFDoor is locked. (SW OFF) Battery voltage
Door is unlocked. (SW ON) 0V
12 R/LFront door switch RH
signalOFFFront door
switch RHON (open) 0V
OFF (closed) Battery voltage
13 GRRear door switch RH
signalOFFRear door
switch RHON (open) 0V
OFF (closed) Battery voltage
22 W/VPower window switch
serial link——
37 B/RKey-in switch detection
signalOFFVehicle 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 GRGlass hatch ajar switch
signalOFFGlass hatch
ajar switchON (open) 0V
OFF (closed) Battery voltage
43 R/BBack door latch (door
ajar switch) signalOFFBack door
latch (door
ajar switch)ON (open) 0V
OFF (closed) Battery voltage
47 SBFront door switch LH
signalOFFFront door
switch LHON (open) 0V
OFF (closed) Battery voltage
48 R/YRear door switch LH
signalOFFRear door
switch LHON (open) 0V
OFF (closed) Battery voltage
49 R Luggage lamp output OFFAny door is open (ON) 0V
All doors are closed (OFF) Battery voltage
56 R/GBattery saver output
signalOFF30 minutes after ignition switch is
turned to OFF0V
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 LInterior room/map lamp
signalOFFEach interior
lamp switch
in DOOR
positionAny
door
switchON
(open)0V
OFF
(closed)Battery voltage
67 B Ground ON — 0V
70 W/B Battery power supply OFF — Battery voltage
PIIA2344J

INTERIOR ROOM LAMP
LT-145
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4. Touch "INT LAMP" on "SELECT TEST SYSTEM" screen.
WORK SUPPORT
Operation Procedure
1. Touch "INT LAMP" on "SELECT TEST SYSTEM" 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 INTCONThe 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 SETThe 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 SETThe 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
MODE12345 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.

LT-146
INTERIOR ROOM LAMP
Revision: October 20052005 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-146, "
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 signal LH. (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 sig-
nal RH.
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

GENERAL MAINTENANCE
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GENERAL MAINTENANCEPFP:00000
General MaintenanceELS001BI
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owner can perform these
checks and inspections or have their NISSAN dealers perform them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc.ItemReference page
TiresCheck the pressure with a gauge at least once a month and always prior to a
long distance trip. Adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear.—
Wheel lug nutsWhen checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary.WT-7, "
Rotation"
WindshieldClean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary.—
Tire rotationTires should be rotated every 12,000 km (7,500 miles).WT-7, "
Rotation"
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel
balancing may be needed.WT-6, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
bladesCheck for cracks or wear if they do not wipe properly.
—
Doors and engine
hoodCheck that all doors and the engine hood operate smoothly as well as the back
hatch. Also make sure that all latches lock securely. Lubricate if necessary.
Make sure that the secondary latch keeps the hood from opening when the pri-
mary latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently.MA-31, "
Lubricating
Locks, Hinges and Hood
Latches"
Lamps
Make sure that the head lamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head
lamp aim. Clean the head lamps on a regular basis.LT- 3 0 , "Aiming Adjust-
ment" for US, LT- 4 6 ,
"Aiming Adjustment" for
Canada
ItemReference page
Warning lamps and
buzzers/chimesMake sure that all warning lamps and buzzers/chimes are operating properly.DI-25, "
Electrical Com-
ponents Inspection"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.—
Windshield defrosterCheck that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner.—
Steering wheelCheck that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises.PS-7, "
CHECKING
STEERING WHEEL
PLAY"
SeatsCheck seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every
position. Check that the head restraints move up and down smoothly and that
the locks (if equipped) hold securely in all latched positions. Check that the
latches lock securely for folding-down rear seat backs.—
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage.SB-10, "
Seat Belt
Inspection", MA-32,
"Checking Seat Belts,
Buckles, Retractors,
Anchors and Adjusters"
Accelerator pedalCheck the pedal for smooth operation. Keep the floor mats away from the pedal. —

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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SECTION PG
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Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
POWER SUPPLY ROUTING CIRCUIT ...................... 4
Schematic ................................................................ 4
Wiring Diagram — POWER — ................................. 6
BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ................................................ 6
ACCESSORY POWER SUPPLY — IGNITION
SW. IN ACC OR ON .............................................11
IGNITION POWER SUPPLY — IGNITION SW.
IN ON .................................................................. 12
IGNITION POWER SUPPLY — IGNITION SW.
IN ON AND/OR START ....................................... 13
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ...................................... 17
System Description ................................................ 17
SYSTEMS CONTROLLED BY IPDM E/R ........... 17
CAN COMMUNICATION LINE CONTROL ......... 17
IPDM E/R STATUS CONTROL ........................... 18
CAN Communication System Description .............. 18
Function of Detecting Ignition Relay Malfunction ... 18
CONSULT-II Function IPDM E/R ............................ 19
CONSULT-II BASIC OPERATION ...................... 19
SELF-DIAGNOSTIC RESULTS .......................... 20
DATA MONITOR ................................................. 20
ACTIVE TEST ..................................................... 21
Auto Active Test ..................................................... 22
DESCRIPTION .................................................... 22
OPERATION PROCEDURE ............................... 22
INSPECTION IN AUTO ACTIVE TEST MODE ... 22
Schematic .............................................................. 24
IPDM E/R Terminal Arrangement ........................... 25
IPDM E/R Power/Ground Circuit Inspection .......... 26
Inspection with CONSULT-II (Self-Diagnosis) ........ 27
Removal and Installation of IPDM E/R ................... 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 28GROUND CIRCUIT ................................................... 29
Ground Distribution ................................................. 29
MAIN HARNESS ................................................. 29
ENGINE ROOM HARNESS ................................ 32
ENGINE CONTROL HARNESS .......................... 35
BODY HARNESS ................................................ 36
BODY NO. 2 HARNESS ..................................... 37
BACK DOOR NO. 2 RH HARNESS .................... 38
HARNESS ................................................................. 39
Harness Layout ...................................................... 39
HOW TO READ HARNESS LAYOUT ................. 39
OUTLINE ............................................................. 40
MAIN HARNESS ................................................. 41
ENGINE ROOM HARNESS (LH VIEW) .............. 43
ENGINE ROOM HARNESS (RH VIEW) ............. 46
ENGINE CONTROL HARNESS .......................... 48
CHASSIS HARNESS .......................................... 50
BODY HARNESS ................................................ 52
BODY NO. 2 HARNESS ..................................... 54
ROOM LAMP HARNESS .................................... 56
FRONT DOOR LH HARNESS ............................ 57
FRONT DOOR RH HARNESS ............................ 57
REAR DOOR LH HARNESS ............................... 58
REAR DOOR RH HARNESS .............................. 58
BACK DOOR HARNESS .................................... 59
Wiring Diagram Codes (Cell Codes) ...................... 60
ELECTRICAL UNITS LOCATION ............................ 63
Electrical Units Location ......................................... 63
ENGINE COMPARTMENT .................................. 63
PASSENGER COMPARTMENT ......................... 64
Fuse ........................................................................ 66
Fusible Link ............................................................ 66
Circuit Breaker (Built Into BCM) ............................. 66
HARNESS CONNECTOR ......................................... 67
Description .............................................................. 67
HARNESS CONNECTOR (TAB-LOCKING
TYPE) .................................................................. 67
HARNESS CONNECTOR (SLIDE-LOCKING
TYPE) .................................................................. 68
HARNESS CONNECTOR (LEVER LOCKING

PG-60
HARNESS
Revision: October 20052005 QX56
Wiring Diagram Codes (Cell Codes)EKS00BNE
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C,A ATC Auto Air Conditioner
A/SUSP RSU Rear Air Suspension
AF1B1 EC Air Fuel Ratio Sensor 1 (Bank 1)
AF1B2 EC Air Fuel Ratio Sensor 1 (Bank 2)
AF1HB1 EC Air Fuel Ratio Sensor 1 (Bank 1)
AF1HB2 EC Air Fuel Ratio Sensor 1 (Bank 2)
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
A/T AT A/T Assembly
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUTO/DP SE Automatic Drive Positioner
AUTO/L LT Auto Light Control
B/CLOS BL Back Door Auto Closure System
BACK/L LT Back-up Lamp
BRK/SW EC Brake Switch
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CLOCK DI Clock
COOL/F EC Cooling Fan Control
COMBSW LT Combination Switch
COMM AV Audio Visual Communication System
COMPAS DI Compass and Thermometer
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
DVD AV DVD Entertainment System
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
ETC1 EC Electric Throttle Control Function
ETC2 EC Throttle Control Motor Relay
ETC3 EC Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTTS EC Fuel Tank Temperature Sensor
FUELB1 EC Fuel Injection System Bank 1
FUELB2 EC Fuel Injection System Bank 2
H/AIM LT Headlamp Aiming Control
H/LAMP LT Headlamp
HORN WW Horn

HARNESS
PG-61
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HSEAT SE Heated Seat
ICC ACS Intelligent Cruise Control
ICCBOF EC ICC Brake Switch
ICC/BS EC ICC Steering Switch
ICC/SW EC ICC Brake Switch
I/MIRR GW Inside Mirror (Auto Anti-Dazzling Mirror)
IATS EC Intake Air Temperature Sensor
IGNSYS EC Ignition System
ILL LT Illumination
INJECT EC Injector
INT/L LT Room/Map, Vanity, Cargo, Personal, Foot, Step, and Puddle Lamps
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
MAFS EC Mass Air Flow Sensor
MAIN EC Main Power Supply and Ground Circuit
METER DI Speedometer, Tachometer, Temp. and Fuel Gauges
MIL/DL EC Malfunction Indicator Lamp
MIRROR GW Door Mirror
NATS BL Nissan Anti-Theft System
NAVI AV Navigation System
O2H2B1 EC Rear Heated Oxygen Sensor 2 Heater Bank 1
O2H2B2 EC Rear Heated Oxygen Sensor 2 Heater Bank 2
O2S2B1 EC Heated Oxygen Sensor 2 Bank 1
O2S2B2 EC Heated Oxygen Sensor 2 Bank 2
P/SCKT WW Power Socket
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE) (Bank 1)
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (POS)
POWER PG Power Supply Routing
PRE/SE EC EVAP Control System Pressure Sensor
PS/SEN EC Power Steering Pressure Sensor
R/VIEW DI Rear View Monitor
RP/SEN EC Refrigerant Pressure Sensor
SEN/PW EC Sensor Power Supply
SHIFT AT A/T Shift Lock System
SONAR DI Rear Sonar System
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
START SC Starting System
STOP/L LT Stop Lamp
T/TOW LT Trailer Tow
T/WARN WT Low Tire Pressure Warning System
TAIL/L LT Parking, License and Tail Lamps
T/F TF Transfer Case
TPS1 EC Throttle Position Sensor
TPS2 EC Throttle Position Sensor
TPS3 EC Throttle Position Sensor
TRNSCV BL HOMELINK® Universal Transceiver
TURN LT Turn Signal and Hazard Warning Lamps
VDC BRC Vehicle Dynamic Control System
VEHSEC BL Vehicle security (theft warning) system

PG-66
ELECTRICAL UNITS LOCATION
Revision: October 20052005 QX56
Fuse EKS00BNG

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 speci-
fied 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 Link EKS00BNH
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)EKS00BNI
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 seat

Power windows

Power door locks

Remote keyless entry system

Power sunroof

Rear window wiper
CEL083
SBF 2 84 E