2005 INFINITI QX4 lock

AV-114
NAVIGATION SYSTEM
Revision: October 20052005 QX56
CAN DIAG SUPPORT MONITOREKS00BJT
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “PAUSE/MUTE” button, turn the volume con-
trol dial clockwise or counterclockwise for 30 clicks or more.
(When the self-diagnosis mode is started, a short beep will be
heard.)

Shifting from current screen to previous screen is performed
by pressing “PREV” button.
4. The initial self-diagnosis screen will be shown, and items “Self-
Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
5. Select “CAN DIAG SUPPORT MONITOR”.
6. Display status of CAN communication.

If the ignition is turned on and UNKWN is shown on the screen, the value of the counter will be up.
(MAX50)
WKIA1504E
SKIA4207E
Item Content Error counter
CANCOMM OK/NG 0-50
CAN_CIRC_1 OK/UNKWN 0-50
CAN_CIRC_2 OK/UNKWN 0-50
CAN_CIRC_3 OK/UNKWN 0-50
CAN_CIRC_4 OK/UNKWN 0-50
CAN_CIRC_5 OK/UNKWN 0-50
CAN_CIRC_6 OK/UNKWN 0-50
CAN_CIRC_7 OK/UNKWN 0-50
CAN_CIRC_8 OK/UNKWN 0-50
CAN_CIRC_9 OK/UNKWN 0-50
SKIA4288E

BCM (BODY CONTROL MODULE)
BCS-7
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BCS
Revision: October 20052005 QX56

BCM is activated with low current consumption mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state:
–Key switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (LH, RH)
–Rear door switch (LH, RH)
–Back door switch
–Combination switch (passing, lighting switch 1st position, front fog lamp)
–Keyfob (lock/unlock signal)
–Door lock assembly LH (key cylinder switch)

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY

Power door lock system. Refer to BL-16, "POWER DOOR LOCK SYSTEM" .

Remote keyless entry system. Refer to BL-44, "REMOTE KEYLESS ENTRY SYSTEM" .

Power window system. Refer to GW-15, "POWER WINDOW SYSTEM" . NOTE

Sunroof system. Refer to RF-10, "SUNROOF" . NOTE

Room lamp timer. Refer to LT- 1 2 9 , "INTERIOR ROOM LAMP" .

Warning chime system. Refer to DI-42, "WARNING CHIME" .

Turn signal and hazard warning lamps system. Refer to LT-80, "TURN SIGNAL AND HAZARD WARNING
LAMPS" .
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R

Panic system. Refer to BL-44, "REMOTE KEYLESS ENTRY SYSTEM" .

IVIS (NATS) system. Refer to BL-137, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .

Headlamp, tail lamp, front fog lamp, auto light and battery saver control systems. Refer to LT- 6 , "HEAD-
LAMP (FOR USA)" , LT- 3 3 , "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -" , LT-108,
"PARKING, LICENSE PLATE AND TAIL LAMPS" , LT-69, "FRONT FOG LAMP" or LT-47, "AUTO LIGHT
SYSTEM" .

Front wiper and washer system. Refer to WW-4, "FRONT WIPER AND WASHER SYSTEM" .

Rear wiper and washer system. Refer to WW-35, "REAR WIPER AND WASHER SYSTEM" .

Rear window defogger system. Refer to GW-77, "REAR WINDOW DEFOGGER" .
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote keyless entry system Keyfob

All-door locking actuator

Back door opener actuator

Turn signal lamp (LH, RH)
Power door lock systemFront power door lock/unlock
switch (LH, RH)All-door locking actuator
Power supply (IGN) to power window
and sunroofIgnition power supply Power supply to power window and sunroof system
Power supply (BAT) to power window
and sunroofBattery power supply Power supply to power window and sunroof system

BCS-8
BCM (BODY CONTROL MODULE)
Revision: October 20052005 QX56
CAN Communication System DescriptionEKS00D7X
Refer to LAN-5, "CAN COMMUNICATION" .
Panic alarm
Key switch

KeyfobIPDM E/R
Auto light system

Auto light sensor

Combination switchIPDM E/R
Battery saver control

Ignition switch

Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch

Turn signal lamp

Combination meter
Hazard lamp Hazard switch

Turn signal lamp

Combination meter
Room lamp timer

Key switch

Keyfob

Main power wndow and door
lock/unlock switch

Front door switch LH

All door switchInterior room lamp
Key warning chime

Key switch

Front door switch LHCombination meter (warning buzzer)
Light warning chime

Combination switch

Key switch

Front door switch LHCombination meter (warning buzzer)
Vehicle-speed-sensing intermittent
wiper

Combination switch

Combination meterIPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Air conditioner switch signal Front air control ECM
Blower fan switch signal Front air control ECMSystem Input Output

BCS-12
BCM (BODY CONTROL MODULE)
Revision: October 20052005 QX56
4. Select item to be diagnosed on “SELECT TEST ITEM” screen.
ITEMS OF EACH PART
NOTE:
CONSULT-II will only display systems the vehicle possesses.
LKIA0183E
System and itemCONSULT-II
displayDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG
RESULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERACTIVE
TESTCON-
FIGU-
RATION
BCM BCM×× × × ×
Power door lock system DOOR LOCK×××
Rear defoggerREAR
DEFOGGER××
Warning chime BUZZER××
Room lamp timer INT LAMP×××
Remote keyless entry
systemMULTI REMOTE
ENT×××
Headlamp HEAD LAMP×××
Wiper (front/rear) WIPER×××
Turn signal lamp
Hazard lampFLASHER××
Blower fan switch signal
Air conditioner switch
signalAIR
CONDITIONER×
Combination switch COMB SW×
IVIS (NATS) IMMU××
Interior lamp battery
saverBATTERY
SAVER×××
Back door TRUNK××
Theft alarm THEFT ALM×××
Retained accessory
power controlRETAINED PWR×××
Oil pressure switch SIGNAL BUFFER××
Air pressure monitorAIR PRESSURE
MONITOR×× × ×
Panic alarm PANIC ALARM×

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
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SECTION BL
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Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for work ................................................ 4
PREPARATION ........................................................... 5
Special service tool .................................................. 5
Commercial Service Tool ......................................... 5
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 6
Work Flow ................................................................ 6
CUSTOMER INTERVIEW ..................................... 6
DUPLICATE THE NOISE AND TEST DRIVE ....... 7
CHECK RELATED SERVICE BULLETINS ........... 7
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 7
REPAIR THE CAUSE ........................................... 7
CONFIRM THE REPAIR ....................................... 8
Generic Squeak and Rattle Troubleshooting ........... 8
INSTRUMENT PANEL .......................................... 8
CENTER CONSOLE ............................................. 8
DOORS ................................................................. 8
TRUNK .................................................................. 9
SUNROOF/HEADLINING ..................................... 9
OVERHEAD CONSOLE (FRONT AND REAR) ..... 9
SEATS ................................................................... 9
UNDERHOOD ....................................................... 9
Diagnostic Worksheet ............................................ 10
HOOD ....................................................................... 12
Fitting Adjustment .................................................. 12
CLEARANCE AND SURFACE HEIGHT
ADJUSTMENT .................................................... 13
HOOD LOCK ADJUSTMENT ............................. 13
Removal and Installation of Hood Assembly .......... 13
Removal and Installation of Hood Lock Control ..... 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
Hood Lock Control Inspection ................................ 15
POWER DOOR LOCK SYSTEM .............................. 16
Component Parts and Harness Connector Location ... 16
System Description ................................................ 17OUTLINE ............................................................. 18
Schematic ............................................................... 19
Wiring Diagram — D/LOCK — ............................... 20
Terminals and Reference Value for BCM ............... 25
Work Flow ............................................................... 25
CONSULT–II Function (BCM) ................................ 26
CONSULT–II INSPECTION PROCEDURE ......... 26
DATA MONITOR ................................................. 27
ACTIVE TEST ..................................................... 28
Trouble Diagnoses Symptom Chart ....................... 29
BCM Power Supply and Ground Circuit Check ...... 29
Door Switch Check ................................................. 31
Key Switch (Insert) Check ...................................... 33
Door Lock/Unlock Switch Check ............................ 34
Glass Hatch Switch Circuit Inspection .................... 36
Front Door Lock Assembly LH (Actuator) Check .... 38
Front Door Lock Actuator RH Check ...................... 39
Rear Door Lock Actuator RH/LH Check ................. 40
Glass Hatch Lock Actuator Check .......................... 41
Front Door Lock Assembly LH (Key Cylinder Switch)
Check ..................................................................... 42
REMOTE KEYLESS ENTRY SYSTEM ..................... 44
Component Parts and Harness Connector Location ... 44
System Description ................................................. 45
INPUTS ............................................................... 45
OPERATING PROCEDURE ................................ 46
CAN Communication System Description .............. 48
Schematic ............................................................... 49
Wiring Diagram — KEYLES — ............................... 50
............................................................................ 50
............................................................................ 51
............................................................................ 52
Terminals and Reference Value for BCM ............... 53
Terminals and Reference Value for IPDM E/R ....... 54
CONSULT-II Function (BCM) ................................. 55
CONSULT-II Inspection Procedure ......................... 55
“MULTI REMOTE ENT” ....................................... 55
CONSULT-II Application Items ............................... 56
“MULTI REMOTE ENT” ....................................... 56
Trouble Diagnosis Procedure ................................. 59

BL-2Revision: October 20052005 QX56 BCM Power Supply and Ground Circuit Check ...... 59
Trouble Diagnoses .................................................. 60
SYMPTOM CHART ............................................. 60
Key Switch (Insert) Check ...................................... 62
Door Switch Check ................................................. 63
Keyfob Battery and Function Check ....................... 65
Remote Keyless Entry Receiver System Check ..... 66
ACC Power Check .................................................. 68
IPDM E/R Operation Check .................................... 68
Check Hazard Function .......................................... 70
Check Horn Function .............................................. 70
Check Headlamp Function ..................................... 70
Check Map Lamp Illumination Function ................. 70
ID Code Entry Procedure ....................................... 71
KEYFOB ID SET UP WITH CONSULT-II ............ 71
KEYFOB ID SET UP WITHOUT CONSULT-II ..... 73
Keyfob Battery Replacement .................................. 74
VEHICLE SECURITY (THEFT WARNING) SYSTEM ... 75
Component Parts and Harness Connector Location ... 75
System Description ................................................. 76
DESCRIPTION .................................................... 76
POWER SUPPLY AND GROUND CIRCUIT ....... 77
INITIAL CONDITION TO ACTIVATE THE SYS-
TEM ..................................................................... 77
VEHICLE SECURITY SYSTEM ALARM OPER-
ATION .................................................................. 77
VEHICLE SECURITY SYSTEM DEACTIVATION ... 78
PANIC ALARM OPERATION ............................... 78
CAN Communication System Description .............. 78
Schematic ............................................................... 79
Wiring Diagram — VEHSEC — .............................. 80
............................................................................. 80
............................................................................. 81
............................................................................. 82
............................................................................. 83
............................................................................. 84
Terminals and Reference Value for BCM ................ 85
Terminals and Reference Value for IPDM E/R ........ 86
CONSULT-II Function (BCM) .................................. 86
CONSULT-II INSPECTION PROCEDURE .......... 86
CONSULT-II APPLICATION ITEM ....................... 88
Trouble Diagnosis ................................................... 89
WORK FLOW ...................................................... 89
Preliminary Check .................................................. 90
Symptom Chart ....................................................... 91
Door Switch Check ................................................. 92
Hood Switch Check ................................................ 94
Combination Meter (Security Indicator Lamp)
Check ..................................................................... 95
Front Door Lock Assembly LH (Key Cylinder Switch)
Check ..................................................................... 96
Vehicle Security Horn Alarm Check ........................ 98
Vehicle Security Headlamp Alarm Check ............... 98
Door Lock/Unlock Switch Check ............................ 98
AUTOMATIC BACK DOOR SYSTEM ....................... 99
Component Parts and Harness Connector Location ... 99
System Description ...............................................100
OPERATION DESCRIPTION ............................100
Schematic .............................................................105Wiring Diagram — B/CLOS — .............................. 106
Terminals and Reference Value for Back Door Con-
trol Unit .................................................................. 111
Terminals and Reference Value for BCM ..............112
Trouble Diagnosis Procedure ................................113
Self-Diagnosis Procedures ...................................113
INPUT SIGNAL CHECK MODE .........................113
OPERATING CHECK MODE .............................113
Diagnosis Chart ....................................................114
Back Door Power Supply and Ground Circuit
Inspection ..............................................................115
Power Liftgate Switch System Inspection .............116
GLASS HATCH AJAR SWITCH CHECK ...........117
Back Door Close (Close) Switch System Inspection .118
Back Door Close (Cancel) Switch System Inspec-
tion ........................................................................119
Pinch Strip System Inspection .............................. 121
Back Door Warning Chime System Inspection ..... 122
Half-Latch Switch System Inspection .................... 122
Open Switch System Inspection ........................... 123
Close Switch System Inspection ........................... 124
Back Door Handle Switch System Inspection ....... 125
Cinch Latch Motor System Inspection .................. 126
DOOR ...................................................................... 128
Fitting Adjustment ................................................. 128
FRONT DOOR ................................................... 128
REAR DOOR ..................................................... 128
STRIKER ADJUSTMENT .................................. 128
Removal and Installation ....................................... 129
FRONT DOOR ................................................... 129
REAR DOOR ..................................................... 129
BACK DOOR ..................................................... 130
FRONT DOOR LOCK .............................................. 131
Component Structure ............................................ 131
Removal and Installation ....................................... 131
REMOVAL .......................................................... 131
INSTALLATION .................................................. 133
Disassembly and Assembly .................................. 133
DOOR KEY CYLINDER ASSEMBLY ................. 133
REAR DOOR LOCK ................................................ 134
Component Structure ............................................ 134
Removal and Installation ....................................... 134
REMOVAL .......................................................... 134
INSTALLATION .................................................. 134
BACK DOOR LOCK ................................................ 135
Power Back Door Opener ..................................... 135
REMOVAL ......................................................... 135
INSTALLATION ................................................. 135
Door Lock Assembly ............................................. 136
REMOVAL ......................................................... 136
INSTALLATION ................................................. 136
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ...................................................................... 137
Component Parts and Harness Connector Location . 137
System Description ............................................... 138
System Composition ............................................. 138
ECM Re-communicating Function ........................ 139
Wiring Diagram — NATS — .................................. 140
Terminals and Reference Value for BCM .............. 141

BL-6
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Revision: October 20052005 QX56
SQUEAK AND RATTLE TROUBLE DIAGNOSESPFP:00000
Work FlowEIS008P7
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any
customer's comments; refer to BL-10, "
Diagnostic Worksheet" . This information is necessary to duplicate the
conditions that exist when the noise occurs.

The customer may not be able to provide a detailed description or the location of the noise. Attempt to
obtain all the facts and conditions that exist when the noise occurs (or does not occur).

If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer
is concerned about. This can be accomplished by test driving the vehicle with the customer.

After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.

Squeak —(Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard sur-
faces = higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping.

Creak—(Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch
dependent on materials/often brought on by activity.

Rattle—(Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.

Knock —(Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.

Tick—(Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.

Thump—(Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.

Buzz—(Like a bumble bee)
Buzz characteristics include high frequency rattle/firm contact.

Often the degree of acceptable noise level will vary depending upon the person. A noise that you may
judge as acceptable may be very irritating to the customer.

Weather conditions, especially humidity and temperature, may have a great effect on noise level.
SBT 8 42

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area.To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear: J-39565 and mechanic's stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fasteners can be bro-
ken or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to BL-8, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A NISSAN Squeak and Rattle Kit (J-43980) is available through your authorized NISSAN
Parts Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the NISSAN Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100×135 mm (3.94×5.31 in)/76884-71L01: 60×85 mm (2.36×3.35 in)/76884-71L02: 15×25
mm (0.59×0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50×50 mm (1.97×1.97 in)/73982-50Y00: 10 mm (0.39 in) thick,
50×50 mm (1.97×1.97 in)
INSULATOR (Light foam block)