Ins INFINITI QX56 2004 Factory Service Manual

NAVIGATION SYSTEM
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PlaceIn a parking lot When driving in a parking lot, or other loca-
tion where there are no roads on the map,
matching may place the vehicle mark on a
nearby road. When the vehicle returns to
the road, the vehicle mark may have devi-
ated from the correct location.
When driving in circle or turning the steer-
ing wheel repeatedly, direction errors accu-
mulate, and the vehicle mark may deviate
from the correct location.
If after travelling about 10 km (6
miles) the correct location has
not been restored, perform
location correction and, if nec-
essary, direction correction. Turntable
When the ignition switch is OFF, the navi-
gation system cannot get the signal from
the gyroscope (angular speed sensor).
Therefore, the displayed direction may be
wrong and the correct road may not be
easily returned to after rotating the vehicle
on a turntable with the ignition OFF.
Slippery roads On snow, wet roads, gravel, or other roads
where tires may slip easily, accumulated
mileage errors may cause the vehicle mark
to deviate from the correct road.
Slopes When parking in sloped garages, when
travelling on banked roads, or in other
cases where the vehicle turns when tilted,
an error in the turning angle will occur, and
the vehicle mark may deviate from the
road.
Map dataRoad not displayed on the map screen
When driving on new roads or other roads
not displayed on the map screen, map
matching does not function correctly and
matches the location to a nearby road.
When the vehicle returns to a road which is
on the map, the vehicle mark may deviate
from the correct road.
Different road pattern
(Changed due to repair)
If the road pattern stored in the map data
and the actual road pattern are different,
map matching does not function correctly
and matches the location to a nearby road.
The vehicle mark may deviate from the
correct road.
Vehicle Use of tire chainsWhen tire chains are used, the mileage is
not correctly detected, and the vehicle
mark may deviate from the correct road.Drive the vehicle for a while. If
the distance still deviates,
adjust it by using the distance
adjustment function. (If the tire
chain is removed, recover the
original value.) Cause (condition) –: While driving ooo: Display Driving condition Remarks (correction, etc.)
SEL709V
SEL710V
SEL699V
ELK0201D

NAVIGATION SYSTEM
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Removal and Installation of NAVI Control UnitEKS007NC
CAUTION:
To avoid damage, eject map DVD-ROM before removing the NAVI control unit.
1. Slide front seat RH fully forward.
2. Remove NAVI control unit kick shield.
3. Disconnect connectors.
4. Remove screws and remove NAVI control unit.
5. Remove screws and brackets from NAVI control unit.
6. Installation is in the reverse order of removal.
Removal and Installation of GPS AntennaEKS007ND
1. Remove defrost grille.
2. Remove screws.
3. Remove center console. Refer to IP-15, "
Center Console" .
4. Disconnect GPS antenna connector and remove GPS antenna
and feeder assembly out the top.
5. Installation is in the reverse order of removal.
Removal and Installation of Steering Wheel SwitchEKS007NE
Refer to AV-47, "Removal and Installation of Steering Wheel Audio Control Switches" .
WKIA1594E
WKIA1510E
WKIA1508E
WKIA1509E

AV-158
NAVIGATION SYSTEM
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Removal and Installation of AV SwitchEKS007NF
Refer to AV- 4 5 , "Removal and Installation for AV Switch" .
Removal and Installation of Display UnitEKS007NG
1. Remove cluster lid D.
2. Remove the four display unit assembly screws.
3. Disconnect connectors and remove display unit assembly.
4. Remove screws and remove display unit from brackets.
5. Installation is in reverse order of removal.
Removal and Installation of Display Control UnitEKS007NH
1. Remove cluster lid D.
2. Remove the four display unit assembly screws.
3. Disconnect connectors and remove display unit assembly.
4. Remove screws and remove display control unit from brackets.
5. Installation is in reverse order of removal.
WKIA1512E
WKIA1512E

BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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SECTION BCS
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BCS
Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
BCM (BODY CONTROL MODULE) ........................... 3
System Description .................................................. 3
BCM FUNCTION ................................................... 3
COMBINATION SWITCH READING FUNCTION ..... 3
CAN COMMUNICATION CONTROL .................... 6
BCM STATUS CONTROL ..................................... 6
SYSTEMS CONTROLLED BY BCM DIRECTLY ..... 7
SYSTEMS CONTROLLED BY BCM AND IPDM
E/R ........................................................................ 7
MAJOR COMPONENTS AND CONTROL SYS-
TEM ....................................................................... 7CAN Communication System Description ................ 8
Schematic ................................................................. 9
CONSULT-II Function (BCM) ................................. 11
CONSULT-II OPERATION ................................... 11
ITEMS OF EACH PART ...................................... 12
WORK SUPPORT ............................................... 12
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 13
Configuration .......................................................... 13
DESCRIPTION .................................................... 13
READ CONFIGURATION PROCEDURE ............ 13
WRITE CONFIGURATION PROCEDURE .......... 16
Removal and Installation of BCM ........................... 19
REMOVAL ........................................................... 19
INSTALLATION ................................................... 19

BCS-2
PRECAUTIONS
Revision: August 20072004 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS007GD
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WAR NIN G:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

BCM (BODY CONTROL MODULE)
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BCM (BODY CONTROL MODULE)PFP:284B2
System DescriptionEKS007GE

BCM (body control module) controls the operation of various electrical units installed on the vehicle.
BCM FUNCTION
BCM has a combination switch reading function for reading the operation of combination switches (light, wiper
washer, turn signal) in addition to the function for controlling the operation of various electrical components.
Also, it functions as an interface that receives signals from the front air control, and sends signals to ECM
using CAN communication.
COMBINATION SWITCH READING FUNCTION
1. Description

BCM reads combination switch (light, wiper) status, and controls various electrical components accord-
ing to the results.

BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
2. Operation description

BCM activates transistors of output terminals (OUTPUT 1-5) periodically and allows current to flow in
turn.

If any (1 or more) of the switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input ter-
minals (INPUT 1-5) becomes active.

At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When
voltage of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects
voltage change and BCM determines that switch is ON.
3. BCM - Operation table of combination switch

BCM reads operation status of combination switch by the combination shown in the following table.
LIIA0757E

BCM (BODY CONTROL MODULE)
BCS-11
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CONSULT-II Function (BCM)EKS007GH
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector and turn ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If "BCM" is not indicated, go to GI-39, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
BBIA0369E
BCIA0029E
BCIA0030E

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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Display Item List
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)EKS007GI
1. SELF-DIAGNOSTIC RESULT CHECK
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. Connect to CONSULT-II, and select “BCM” on “SELECT SYSTEM” screen.
2. Select “BCM” on “SELECT TEST ITEM” screen, and select “SELF-DIAG RESULTS”.
3. Check display content in self-diagnostic results.
Contents displayed
No malfunction>>Inspection End
Malfunction in CAN communication system>>After printing the monitor items, go to LAN-5, "
CAN COMMU-
NICATION" .
ConfigurationEKS007GJ
DESCRIPTION
CONFIGURATION has two functions as follows:

READ CONFIGURATION is the function to confirm vehicle configuration of current BCM.

WRITE CONFIGURATION is the function to write vehicle configuration on BCM.
CAUTION:

When replacing BCM, you must perform WRITE CONFIGURATION with CONSULT-II.

Complete the procedure of WRITE CONFIGURATION in order.

If you set incorrect WRITE CONFIGURATION, incidents will occur.

Configuration is different for each vehicle model. Confirm configuration of each vehicle model.
READ CONFIGURATION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector and turn ignition switch ON.
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
CONSULT-II display code Diagnosis item
U1000INITIAL DIAG
TRANSMIT DIAG
ECM
IPDM E/R
METER/M&A
I-KEY
BBIA0369E

BCM (BODY CONTROL MODULE)
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14. Touch "OK" on "WRITE CONFIGURATION" screen.
WRITE CONFIGURATION is completed.
Removal and Installation of BCMEKS007GK
REMOVAL
NOTE:
If possible, before removing BCM, retrieve current BCM configuration to use for reference when configuring
brand-new BCM after installation. Refer to BCS-13, "
Configuration" .
1. Disconnect negative battery cable.
2. Remove lower knee protector LH. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
3. Remove screw and release BCM.
4. Disconnect connectors and then remove BCM.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:

When replacing BCM, it must be configured. Refer to BCS-13, "Configuration" .

When replacing BCM, perform initialization of NATS system and registration of all NATS ignition key IDs.
Refer to BL-138, "
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .

When replacing BCM, perform ID registration procedure of low tire pressure warning system. Refer to
WT-13, "
ID Registration Procedure" .
LKIA0400E
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