warning INFINITI QX56 2008 Factory Service Manual

SEC-20
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000004807910
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
IMMU
IMMU : CONSULT-III Function (BCM - IMMU)INFOID:0000000004807911
DATA MONITOR
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM. Refer to BCS-50, "
DTCIndex".
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION The BCM part number is displayed.
CONFIGURATION • Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.
System
Sub system selection item Diagnosis mode
WORK SUPPORT DATA MONITOR ACTIVE TEST
BCM BCM ×
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ×
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITONER ×
Intelligent Key system INTELLIGENT KEY ×
Combination switch COMB SW ×
Immobilizer IMMU ××
Interior room lamp battery saver BATTERY SAVER ×××
Back door open TRUNK ××
RAP (retained accessory power) RETAINED PWR ×××
Signal buffer system SIGNAL BUFFER ××
TPMS (tire pressure monitoring sys-
tem) AIR PRESSURE MONITOR
×××
Vehicle security system PANIC ALARM ×
Revision: March 2010 2008 QX56

SEC-22
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (I
NTELLIGENT KEY UNIT)
DIAGNOSIS SYSTEM (INT ELLIGENT KEY UNIT)
CONSULT-III Function (INTELLIGENT KEY)INFOID:0000000001539115
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with Intelligent Key unit.
WORK SUPPORT
SELF-DIAG RESULT
Refer to SEC-79, "DTCIndex".
DATA MONITOR
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by Intelligent Key unit.
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from Intelligent Key unit.
DATA MONITOR The Intelligent Key unit input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from Intelligent Key unit.
ECU IDENTIFICATION The Intelligent Key unit part number is displayed.
Support item DescriptionSelection item Condition
CONFIRM KEY FOB ID It can check whether Intelligent Key ID code
is registered or not. ——
TAKE OUT FROM WINDOW WARN Take away warning chime (from window)
mode can be changed. ON
Active
OFF Inactive
LOW BATT OF KEY FOB WARN Intelligent Key low battery warning mode can
be changed. ON
Active
OFF Inactive
KEYLESS FUNCTION Door lock function with Intelligent Key can be
changed. ON
Active
OFF Inactive
ANSWER BACK FUNCTION Buzzer reminder operation can be changed. ON
Active
OFF Inactive
SELECTIVE UNLOCK FUNCTION Anti-hi jack mode can be changed. ON
Active
OFF Inactive
HAZARD ANSWER BACK Hazard reminder operation mode can be
changed. Refer to DLK-49
.
ANSWER BACK WITH I-KEY LOCK Buzzer reminder operation (lock operation)
mode by each door request switch can be
changed. BUZZER
Active
OFF Inactive
ANSWER BACK WITH I-KEY UNLOCK Buzzer reminder operation (unlock operation)
mode by each door request switch can be
changed. BUZZER
Active
OFF Inactive
AUTO RELOCK TIMER Auto door lock operation mode can be
changed. OFF
Inactive
1 min Active
ENGINE START BY I-KEY Engine start function (by Intelligent Key)
mode can be changed. ON
Active
OFF Inactive
LOCK/UNLOCK BY I-KEY Door lock function by door request switch can
be changed. ON
Active
OFF Inactive
Revision: March 2010 2008 QX56

DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)SEC-23
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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ACTIVE TEST
Monitor Item Condition
PUSH SW Indicates [ON (pressed)/OFF (released)] condition of ignition knob switch.
KEY SW Indicates [ON (inserted)/OFF (removed)] cond ition of key switch.
DR REQ SW Indicates [ON (pressed)/OFF (released)] condition of door request swit ch (driver side).
AS REQ SW Indicates [ON (pressed)/OFF (re
leased)] condition of door request switch (passenger
side).
BD/TR REQ SW Indicates [ON (pressed)/OFF (released)] condition of door request switch (back door).
IGN SW Indicates [ON (ON or START position)/OFF (other than ON and START position)] con-
dition of ignition switch ON position.
ACC SW Indicates [ON/OFF] condition of ignition switch ACC position.
STOP LAMP SW Indicates [ON/OFF] condition of stop lamp switch.
DOOR LOCK SIG Indicates [ON/OFF] condition of LOCK signal from Intelligent Key.
DOOR UNLOCK SIG Indicates [ON/OFF] condition of UNLOCK signal from Intelligent Key.
DOOR SW DR Indicates [OPEN/CLOSE] condition of front door switch (driver side) from BCM via CAN
communication.
DOOR SW AS Indicates [OPEN/CLOSE] condition of front door switch (passenger side) from BCM via
CAN communication.
DOOR SW RR Indicates [OPEN/CLOSE] condition of rear door switch (RH) from BCM via CAN com-
munication.
DOOR SW RL Indicates [OPEN/CLOSE] condition of rear door switch (LH) from BCM via CAN com-
munication.
DOOR BK SW Indicates [OPEN/CLOSE] condition of back door switch from BCM via CAN communi-
cation.
VEHICLE SPEED Displays the vehicle speed signal received from combination meter by numerical value
[km/h].
Test item
Description
DOOR LOCK/UNLOCK This test is able to check door lock/unlock operation.
• ALL UNLK: All door lock actuators are unlocked.
• DR UNLK: Door lock actuator
(driver side) is unlocked.
• AS UNLK: Door lock actuator (passenger side) is unlocked.
• BK UNLK: This item is indicated, but inactive.
• LOCK: All door lock actuator is locked.
ANTENNA This test is able to check Intelligent Key antenna operation.
When the following condition are met, hazard warning lamps flash.
• ROOM ANT1: Inside key antenna (console) detects Intelligent Key, when “ROOM
ANT1” is selected.
• ROOM ANT2: Inside key antenna (instrument center/rear seat) detects Intelligent
Key, when “ROOM ANT2”is selected.
• DRIVER ANT: Outside key antenna (driver side) detects Intelligent Key, when “DRIV- ER ANT” is selected.
• ASSIST ANT: Outside key antenna (passenger side) detects Intelligent Key, when “ASSIST ANT” is selected.
• BK DOOR ANT: Outside key antenna (rear bumper) detects Intelligent Key, when “BK
DOOR ANT” is selected.
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation.
•ON
•OFF
INSIDE BUZZER This test is able to check warning chime in combination meter operation.
• TAKE OUT: Take away
warning chime sounds.
• KNOB: Ignition knob switch warning chime sounds.
• KEY: Key warning chime sounds.
•OFF
Revision: March 2010 2008 QX56

SEC-48
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HORN FUNCTION
HORN FUNCTION
Symptom TableINFOID:0000000001539157
HAZARD AND HORN REMINDER FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the follo
wing table, check “Work flow”. Refer to SEC-3, "
Work Flow".
• If the following symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column in this order.
Conditions of Vehicle (Operating Conditions)
• “ANSWER BACK FUNCTION” is ON when setting on CONSULT-III.
• Ignition switch is in OFF position.
• All doors are closed.
Symptom Diagnosis/service procedureReference
page
Hazard reminder does not operate by request switch.
(Horn reminder operate.) 1.
Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”. DLK-49
2. Check hazard function.
DLK-108
3. Check Intermittent Incident. GI-38
Hazard reminder does not operate by Intelligent Key.
(Horn reminder operate.)1.
Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”. DLK-49
2. Check hazard function.
DLK-108
3. Check Intelligent Key battery inspection.DLK-102
Horn reminder does not operate by request switch.
(Hazard reminder operate.)1.
Check “ANSWER BACK WITH I-KEY LOCK” or “AN-
SWER BACK WITH I-KEY UNLOCK” setting in “WORK
SUPPORT”. DLK-49
2. Check Intelligent Key warning buzzer.
DLK-91
3. Check Intermittent Incident. GI-38
Horn reminder does not operate by Intelligent Key.
(Hazard reminder operate.)1.
Check “HORN WITH KEYLESS LOCK” setting in
“WORK SUPPORT”. DLK-49
2. Check horn function.
SEC-48
3. Check Intermittent Incident. GI-38
Revision: March 2010 2008 QX56

SEC-54
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
Te r m i n a lWire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
1BR/W Ignition keyhole illumi-
nation Output OFFDoor is locked (SW OFF)
Battery voltage
Door is unlocked (SW ON) 0V
2SB Combination switch
input 5 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
3G/Y Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4Y Combination switch
input 3 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
5G/B Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6V Combination switch
input 1
9GR/R Rear window defogger
switch
Input ONRear window defogger switch
ON
0V
Rear window defogger switch
OFF 5V
10 G Hazard lamp flash Input OFF ON (opening or closing)
0V
OFF (other than above) Battery voltage
11 O Ignition switch (ACC
or ON)
InputACC or
ON Ignition switch ACC or ON
Battery voltage
12 R/L Front door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
15 L/W Tire pressure warning
check connector
Input OFF
—5V
18 P Remote keyless entry
receiver and optical
sensor (ground)
Output OFF
—0V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Revision: March 2010 2008 QX56

SEC-80
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
CONSULT display
Fail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
further testing
may be required. ————
U1000: CAN COMM CIRCUIT ———BCS-30
U1010: CONTROL UNIT (CAN) ———BCS-31
B2190: NATS ANTENNA AMP ———SEC-29
B2191: DIFFERENCE OF KEY ———SEC-32
B2192: ID DISCORD BCM-ECM ———SEC-33
B2193: CHAIN OF BCM-ECM ———SEC-35
B2552: INTELLIGENT KEY ———SEC-37
B2590: NATS MALFUNCTION ———SEC-38
C1704: LOW PRESSURE FL ———WT-31
C1705: LOW PRESSURE FR ———WT-31
C1706: LOW PRESSURE RR ———WT-31
C1707: LOW PRESSURE RL ———WT-31
C1708: [NO DATA] FL ———WT-14
C1709: [NO DATA] FR ———WT-14
C1710: [NO DATA] RR ———WT-14
C1711: [NO DATA] RL ———WT-14
C1712: [CHECKSUM ERR] FL ———WT-16
C1713: [CHECKSUM ERR] FR ———WT-16
C1714: [CHECKSUM ERR] RR ———WT-16
C1715: [CHECKSUM ERR] RL ———WT-16
C1716: [PRESSDATA ERR] FL ———WT-18
C1717: [PRESSDATA ERR] FR ———WT-18
C1718: [PRESSDATA ERR] RR ———WT-18
C1719: [PRESSDATA ERR] RL ———WT-18
C1720: [CODE ERR] FL ———WT-16
C1721: [CODE ERR] FR ———WT-16
C1722: [CODE ERR] RR ———WT-16
C1723: [CODE ERR] RL ———WT-16
C1724: [BATT VOLT LOW] FL ———WT-16
C1725: [BATT VOLT LOW] FR ———WT-16
C1726: [BATT VOLT LOW] RR ———WT-16
C1727: [BATT VOLT LOW] RL ———WT-16
C1729: VHCL SPEED SIG ERR ———WT-19
C1735: IGNITION SIGNAL ———WT-20
Revision: March 2010 2008 QX56

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-99
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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THFT HRN REQ Not operated
OFF
• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-
TEM ON
HORN CHIRP Not operated
OFF
Door locking with Intelligent Key (horn chirp mode) ON
Monitor Item
ConditionValue/Status
Revision: March 2010 2008 QX56

SEC-114
< PRECAUTION >[WITH INTELLIGENT KEY SYSTEM]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004874836
The Supplemental Restraint System such as “A IR 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004874838
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

SN-46
< PRECAUTION >
PRECAUTION
PRECAUTION
PRECAUTION
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004874925
The Supplemental Restraint System such as “A IR 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004874926
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

SR-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004894350
The Supplemental Restraint System such as “A IR 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution for SRS "AIR BAG" and "S EAT BELT PRE-TENSIONER" Service
INFOID:0000000001602214
• Do not use electrical test equipment to check SRS ci rcuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery terminals and wait at least 3 min- utes.
For approximately 3 minutes after the terminals are remov ed, it is still possible for the air bags and seat belt
pre-tensioners to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
• The air bag diagnosis sensor unit must always be installed with the arrow mark “ ⇐” pointing toward the front
of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Occupant Classification System PrecautionINFOID:0000000001602215
Replace control unit and passenger front seat cushion as an assembly.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004894349
NOTE:
Revision: March 2010 2008 QX56