Back up INFINITI QX56 2004 Factory Workshop Manual

NAVIGATION SYSTEM
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25 (R/L) 30 (B)Illumination
signalInput ONLighting switch in
1st positionBattery voltageDisplay unit illu-
mination does
not change
when lighting
switch is turned
to 1st position.- Lighting switch is
OFF3V or less
26 (G/R) Ground Ignition signal Input ON – Battery voltageNavigation cur-
rent location
mark does not
indicate the cor-
rect position.
27 (G/W) GroundReverse
signalInput ONSelector lever in R
positionBattery voltageThe navigation
current location
mark moves
strangely when
the vehicle is
moving back-
wards. Selector lever not in
R position0V
28 (W/R) GroundVehicle
speed signal
(8-pulse)Input ONWhen vehicle speed
is approx. 40 km/h
(25 MPH)Navigation cur-
rent location
mark does not
indicate the cor-
rect position.
43 –Shield
ground–– – – –
44 (L) GroundCommunica-
tion signal (+)Input/
outputON –System does not
work properly.
45 (P) GroundCommunica-
tion signal (–)Input/
outputON –System does not
work properly.
66 67 GPS signal Input ONConnector is not
connected.5 VNavigation sys-
tem GPS correc-
tion is not
possible. Te r m i n a l N o .
(Wire color)
ItemSignal
input/
outputCondition
Vo l ta g e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
PKIA1935E
SKIA0175E
SKIA0176E

AV-124
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Ignition Signal Check for Display Control UnitEKS007M8
1. CHECK IGNITION SIGNAL
1. Disconnect display control unit connector.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector
M94 terminal 12 (G/R) and ground.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display con-
trol unit and fuse.
Reverse Signal Check for NAVI Control UnitEKS007M9
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" .
2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between NAVI
control unit and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 5 7 , "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control unit and back-up lamp position relay.
Reverse Signal Check for Display Control UnitEKS007MA
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" . Battery voltage should exist.
WKIA1230E
Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than R-
position
B152 27 (G/W) Ground Battery voltage Approx. 0V
SKIA4302E

NAVIGATION SYSTEM
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2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between display
control unit and ground.
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display control unit and back-up lamp position relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control
Unit)
EKS007MB
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check power supply and ground circuit for NAVI control unit. Refer to AV- 11 6 , "
Power Supply and Ground
Circuit Check for NAVI Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display control unit connector.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than
R-position
M94 6 (GR) Ground Battery voltage Approx. 0V
SKIA4303E
Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
B15244 (L)
M9532 (L)
Ye s
45 (P) 34 (P)
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15244 (L)
Ground No
45 (P)
SKIA4444E

NAVIGATION SYSTEM
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Driving TestEKS007N9
1. DRIVING TEST 1
1. Scroll the map screen to display the area to make correction. Press “ENTER” and select “CURRENT
LOCATION CORRECTION”.
2. Correct direction of the vehicle mark.
3. Perform the distance correction of the CONFIRMATION/ADJUSTMENT mode.
Note: Normally, adjustment is not necessary because this system has automatic distance correction func-
tion. However, when a tire chain is fitted, adjustment in accordance with the tire diameter ratio must be
made.
4. Are symptoms malfunctioning to the AV-148, "
Example of Symptoms Judged Not Malfunction" present
after driving the vehicle?
YES or NO
YES >> Limit of the location detection capacity of the navigation system.
NO >> GO TO 2.
2. DRIVING TEST 2

Did any malfunction occur when the proper test in the following test patterns is performed?

Test pattern
Driving test finds the difference between the symptoms monitored with and without each sensor.
–Test pattern 1: Test method with no GPS location correction
Disconnect GPS antenna connector (GT5) connected to the NAVI control unit. Accurately adjust the cur-
rent location and the direction, then drive the vehicle.
–Test pattern 2: Test method with no map-matching
Accurately adjust the current location and the direction. Eject the map DVD-ROM from the NAVI control
unit with ignition switch turned to OFF, then drive the vehicle. After driving, insert the map DVD-ROM back
in the unit, display the track of the vehicle on the map screen and compare it with the actual road configu-
ration.

Sample tests
–<To determine if the current-location mark skips at the same position, if so, whether it is caused by map-
matching or by GPS>
Perform test pattern 1.
–<To determine if the pattern of streets displayed is correct or not>
Perform test pattern 1 & 2.
Compare the track of the vehicle on the map screen and the actual road configuration. For fairly accurate
tracking, plotting shall be made every several hundred meters (feet).
–<When the distance is adjusted accurately>
Perform test pattern 1 & 2.
Drive on a road of which distance is accurately known (by utilizing distance posts on a highway). Calculate
the rate of change (increased/decreased) of the distance by comparing with the actual distance.
Correction = A/B
A: Distance shown on the screen
B: Actual distance
YES or NO
YES >>
If adjustment is insufficient, perform adjustment again.

If any error is found in the map, please contact map data supplier. Refer to Navigation System
Owner's Manual for contact information.

Replace NAVI control unit. Refer to AV-157, "Removal and Installation of NAVI Control Unit" .
NO >> Limit of the location detection capacity of the navigation system.

AV-154
NAVIGATION SYSTEM
Revision: August 20072004 QX56
CURRENT LOCATION MARK SHOWS A POSITION WHICH IS COMPLETELY WRONG
In the following cases, the current-location mark may appear on completely different position in the map
depending on the GPS satellite signal receiving conditions. In this case, perform location correction and direc-
tion correction.

When location correction has not been done
–If the receiving conditions of the GPS satellite signal is poor, or if the current-location mark becomes out of
place, it may move to a completely different location and not come back if location correction is not done.
The position will be corrected if the GPS signal can be received.

When the vehicle has traveled by ferry, or when the vehicle has been towed
–Because calculation of the current location cannot be done when travelling with the ignition OFF, for
example when traveling by ferry or when being towed, the location before travel is displayed. If the precise
location can be detected with GPS, the location will be corrected.
CURRENT-LOCATION MARK JUMPS
In the following cases, the current-location mark may appear to jump as a result of automatic correction of the
current location.

When map-matching has been done
–If the current location and the current-location mark are different when map-matching is done, the current-
location mark may seem to jump. At this time, the location may be “corrected” to the wrong road or to a
location which is not on a road.

When GPS location correction has been done
–If the current location and the current-location mark are different when the location is corrected using GPS
measurements, the current-location mark may seem to jump. At this time, the location may be “corrected”
to a location which is not on a road.
Precautions
for drivingJust after the engine is startedIf the vehicle is driven just after the engine
is started when the gyroscope (angular
speed sensor) correction is not completed,
the vehicle can lose its direction and may
have deviated from the correct location.Wait for a short while before
driving after starting the engine.
Continuous driving without stopping When driving long distances without stop-
ping, direction errors may accumulate, and
the current-location mark may deviate from
the correct road.Stop and adjust the orientation.
Abusive driving Spinning the wheels or engaging in other
kinds of abusive driving may result in the
system being unable perform correct
detection, and may cause the vehicle mark
to deviate from the correct road.If after travelling about 10 km (6
miles) the correct location has
not been restored, perform
location correction and, if nec-
essary, direction correction.
How to cor-
rect locationPosition correction accuracy
If the accuracy of location settings is poor,
accuracy may be reduced when the correct
road cannot be found, particularly in places
where there are many roads.Enter in the road displayed on
the screen with an accuracy of
approx. 1mm.
Caution: Whenever possible,
use detailed map for the cor-
rection.
Direction when location is corrected
If the accuracy of location settings during
correction is poor, accuracy may be
reduced afterwards.Perform direction correction. Cause (condition) –: While driving ooo: Display Driving condition Remarks (correction, etc.)
SEL701V
SEL702V

BCM (BODY CONTROL MODULE)
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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-43, "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" .

Theft warning system. Refer to BL-75, "VEHICLE SECURITY (THEFT WARNING) SYSTEM" .

IVIS (NATS) system. Refer to BL-138, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .

Headlamp, daytime light, fog lamp, tail lamp, auto light and battery saver control systems. Refer to LT- 6 ,
"HEADLAMP (FOR USA)" , LT-34, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -" , LT-69,
"FRONT FOG LAMP" , LT- 1 0 8 , "PARKING, LICENSE PLATE AND TAIL LAMPS" , or LT- 4 7 , "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-33, "REAR WIPER AND WASHER SYSTEM" .

Rear window defogger system. Refer to GW-78, "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 system

Front power door lock/unlock
switch (LH, RH)

All door switch

Key switchAll-door locking actuator
Power supply (IGN) to power window and
sunroofIgnition power supply Power supply to power window and sunroof system

BCS-12
BCM (BODY CONTROL MODULE)
Revision: August 20072004 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.
WORK SUPPORT
Operation Procedure
1. Touch "BCM" on "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on "SELECT DIAG MODE" screen.
3. Touch "RESET SETTING VALUE" on "SELECT WORK ITEM" screen.
4. Touch "START".
5. "RESET SETTING VALUE OK?" is displayed, and touch "YES".
6. The setting will be changed and "COMPLETED" will be displayed.
7. Touch "END".
LKIA0183E
System and itemCONSULT-II
displayDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−DIAG
RESULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERACTIVE
TESTCONFIG-
URA-
TION
BCM BCM×× × × ×
Power door lock sys-
temDOOR LOCK×××
Rear defoggerREAR
DEFOGGER××
Warning chime BUZZER××
Room lamp timer INT LAMP×××
Remote keyless
entry systemMULTI
REMOTE ENT×××
Headlamp HEAD LAMP×××
Wiper 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 BACK DOOR××
Retained power con-
trolRETAINED
PWR×××

BCM (BODY CONTROL MODULE)
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6. Touch “JA60” and "OK" on “VEHICLE SELECT” screen. For
canceling, touch "CANCEL" on "VEHICLE SELECT" screen.
NOTE:
Confirm vehicle model. Refer to GI-46, "
Model Variation" in GI
section.
7. Touch “READ CONFIGURATION” on “SELECT CONFIG ITEM”
screen.
8. Configuration of current BCM is printed out automatically. A list-
ing of manual setting items and auto setting items will be dis-
played. Auto setting items are preset and cannot be changed.
Manual setting items can be set by using WRITE CONFIGURA-
TION PROCEDURE. Refer to BCS-16, "
WRITE CONFIGURA-
TION PROCEDURE" .
9. Touch “BACK” on “READ CONFIGURATION” screen.
LKIA0606E
LKIA0547E
LKIA0504E
LKIA0395E

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
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SECTION BL
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B
BL
Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for work ................................................ 4
Wiring Diagnosis and Trouble Diagnosis ................. 4
PREPARATION ........................................................... 5
Special service tool .................................................. 5
Commercial Service Tool ......................................... 5
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 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
BACK DOOR ......................................................... 9
SUNROOF/HEADLINER ....................................... 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 ... 16System Description ................................................. 17
OUTLINE ............................................................. 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 .... 37
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

BL-2Revision: August 20072004 QX56 Trouble Diagnosis Procedure ................................. 59
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 ....... 76
INITIAL CONDITION TO ACTIVATE THE SYS-
TEM ..................................................................... 77
VEHICLE SECURITY SYSTEM ALARM OPER-
ATION .................................................................. 78
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 .......... 87
CONSULT-II APPLICATION ITEM ....................... 89
Trouble Diagnosis ................................................... 90
WORK FLOW ...................................................... 90
Preliminary Check .................................................. 91
Symptom Chart ....................................................... 92
Door Switch Check ................................................. 93
Hood Switch Check ................................................ 95
Combination Meter (Security Indicator Lamp)
Check ..................................................................... 97
Front Door Lock Assembly LH (Key Cylinder Switch)
Check ..................................................................... 98
Vehicle Security Horn Alarm Check ......................100
Vehicle Security Headlamp Alarm Check .............100
Door Lock/Unlock Switch Check ..........................100
AUTOMATIC BACK DOOR SYSTEM .....................101
Component Parts and Harness Connector Location .101
System Description ...............................................102
OPERATION DESCRIPTION ............................102Schematic ............................................................. 107
Wiring Diagram — B/CLOS — .............................. 108
Terminals and Reference Value for Back Door Con-
trol Unit ..................................................................113
Terminals and Reference Value for BCM ..............114
Trouble Diagnosis Procedure ................................115
Self-Diagnosis Procedures ...................................115
INPUT SIGNAL CHECK MODE .........................115
OPERATING CHECK MODE .............................115
Diagnosis Chart ....................................................116
Back Door Power Supply and Ground Circuit
Inspection ..............................................................117
Power Liftgate Switch System Inspection .............118
GLASS HATCH AJAR SWITCH CHECK ...........119
Back Door Close (Close) Switch System Inspection . 120
Back Door Close (Cancel) Switch System Inspec-
tion ........................................................................ 121
Pinch Strip System Inspection .............................. 122
Back Door Warning Chime System Inspection ..... 123
Half-Latch Switch System Inspection .................... 124
Open Switch System Inspection ........................... 125
Close Switch System Inspection ........................... 126
Back Door Handle Switch System Inspection ....... 127
Cinch Latch Motor System Inspection .................. 128
DOOR ...................................................................... 129
Fitting Adjustment ................................................. 129
FRONT DOOR ................................................... 129
REAR DOOR ..................................................... 129
STRIKER ADJUSTMENT .................................. 129
Removal and Installation ....................................... 130
FRONT DOOR ................................................... 130
REAR DOOR ..................................................... 130
BACK DOOR ..................................................... 131
FRONT DOOR LOCK .............................................. 132
Component Structure ............................................ 132
Removal and Installation ....................................... 132
REMOVAL .......................................................... 132
INSTALLATION .................................................. 134
Disassembly and Assembly .................................. 134
DOOR KEY CYLINDER ASSEMBLY ................. 134
REAR DOOR LOCK ................................................ 135
Component Structure ............................................ 135
Removal and Installation ....................................... 135
REMOVAL .......................................................... 135
INSTALLATION .................................................. 135
BACK DOOR LOCK ................................................ 136
Power Back Door Opener ..................................... 136
REMOVAL ......................................................... 136
INSTALLATION ................................................. 136
Door Lock Assembly ............................................. 137
REMOVAL ......................................................... 137
INSTALLATION ................................................. 137
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ...................................................................... 138
Component Parts and Harness Connector Location . 138
System Description ............................................... 139
System Composition ............................................. 139
ECM Re-communicating Function ........................ 140
Wiring Diagram — NATS — .................................. 141