key fob INFINITI QX4 2005 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2005, Model line: QX4, Model: INFINITI QX4 2005Pages: 3419, PDF Size: 80.18 MB
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AV-68
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Setting of the under section display
How To Perform Under Section Display Setting
1. Select “Setting of the Under Section Display”.
The setting status that is selected from A/C or AV is shown at the lower part of the screen.
Vehicle Electronic Systems
Application Items
How To Perform Navigation Setting
1. Start the engine.
2. Push “SETTING” button.
3. Select “Vehicle Electronic Systems”.
System Settings
How To Perform System Setting
1. Start the engine.
2. Push “SETTING” button.
3. Select “System Settings”.
Icon Description
Adjust Driver Seat When Exiting Vehicle The driver's seat automatically moves back and returns to the original position.
Lift Steering Column When Exiting Vehicle The steering column automatically tilts up and returns to the original position.
Remote Unlock Driver's Door FirstThis option allows selection of which doors will unlock first during an unlocking oper-
ation.
Keyless Remote Response — HornThis option allows the horn chirp mode when pressing the LOCK or UNLOCK button
on the keyfob to be changed.
Keyless Remote Response — LightsThis option allows the hazard flash mode when pressing the LOCK or UNLOCK but-
ton on the keyfob to be changed.
Auto Re-Lock Time This option allows the length of time before doors auto re-lock to be set.
Sensitivity of Automatic Headlights This option allows the sensitivity of the autolights to be set.
Automatic Headlights Off Delay This option allows the length of time before the autolights turn off to be set.
Speed Dependent Wiper This option allows the driving speed dependent wiper function to be turned on or off.
Return All Settings to Default All settings will return to the initial conditions.
WKIA1802E
SKIA4536E
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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-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
Page 755 of 3419
BCS-8
BCM (BODY CONTROL MODULE)
Revision: October 20052005 QX56
CAN Communication System DescriptionEKS00D7X
Refer to LAN-5, "CAN COMMUNICATION" .
Panic alarmKey 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
Page 769 of 3419
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
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PREPARATION
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PREPARATIONPFP:00002
Special service toolEIS008P5
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolEIS008P6
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-39570)
Chassis earLocating the noise
—
(J-43980)
NISSAN Squeak and Rat-
tle KitRepairing the cause of noise
—
(J-43241)
Remote Keyless Entry
TesterUsed to test keyfobs
SIIA0993E
SIIA0994E
LEL946A
Tool name
(Kent-Moore No.)Description
Engine ear
(J-39565)Locating the noise
SIIA0995E
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POWER DOOR LOCK SYSTEM
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5. Touch “BCM”.
If "BCM" is not indicated, refer to GI-39, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
6. Touch “DOOR LOCK”.
7. Select diagnosis mode.
“DATA MONITOR” and “ACTIVE TEST” are available.
DATA MONITOR
BCIA0030E
LIIA1137E
BCIA0031E
Monitor item "OPERATION" Content
KEY ON SW "ON/OFF" Indicates [ON/OFF] condition of key switch.
CDL LOCK SW "ON/OFF" Indicates [ON/OFF] condition of lock signal from lock/unlock switch LH and RH.
CDL UNLOCK SW "ON/OFF" Indicates [ON/OFF] condition of unlock signal from lock/unlock switch LH and RH.
KEY CYL LK-SW "ON/OFF" Indicates [ON/OFF] condition of lock signal from key cylinder.
KEY CYL UN-SW "ON/OFF" Indicates [ON/OFF] condition of unlock signal from key cylinder.
IGN ON SW "ON/OFF" Indicates [ON/OFF] condition of ignition switch.
DOOR SW–DR "ON/OFF" Indicates [ON/OFF] condition of front door switch LH.
DOOR SW–AS "ON/OFF" Indicates [ON/OFF] condition of front door switch RH.
DOOR SW–RR "ON/OFF" Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW–RL "ON/OFF" Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW "ON/OFF" Indicates [ON/OFF] condition of back door latch (door ajar switch).
KEYLESS LOCK "ON/OFF" Indicates [ON/OFF] condition of lock signal from keyfob.
KEYLESS UNLOCK "ON/OFF" Indicates [ON/OFF] condition of unlock signal from keyfob.
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REMOTE KEYLESS ENTRY SYSTEM
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System DescriptionEIS008PX
INPUTS
Power is supplied at all times
to BCM terminal 70
through 50A fusible link (letter f , located in the fuse and fusible link box).
to BCM terminal 57
through 15A fuse [No. 22, located in the fuse block (J/B)].
When the key is inserted in the key switch and key lock solenoid, power is supplied
to BCM terminal 37
through key switch and key lock solenoid terminals 3 and 4
through 10A fuse [No. 19, located in the fuse block (J/B)].
When the ignition switch is ACC or ON, power is supplied
to BCM terminal 11
through 10A fuse [No. 4, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied
to BCM terminal 38
through 10A fuse (No. 59, located in the fuse and relay box).
When the front door switch LH is ON (door is OPEN), ground is supplied
to BCM terminal 47
through front door switch LH terminal 2
through front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied
to BCM terminal 12
through front door switch RH terminal 2
through front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
to BCM terminal 48
through rear door switch LH terminal 2
through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
to BCM terminal 13
through rear door switch RH terminal 2
through rear door switch RH case ground.
When the back door latch (door ajar switch) is ON (door is OPEN), ground is supplied
to BCM terminal 43
through back door latch (door ajar switch) terminal 7,
through back door latch (door ajar switch) terminal 8,
through body grounds B7 and B19.
Keyfob signal is input into the BCM from the remote keyless entry receiver.
The remote keyless entry system controls operation of the
power door lock
back door opener
interior lamp and step lamps
panic alarm
hazard and horn reminder
keyless power window down (open)
auto door lock operation
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BL-46
REMOTE KEYLESS ENTRY SYSTEM
Revision: October 20052005 QX56
OPERATING PROCEDURE
When the keyfob is operated, the signal from the keyfob is sent and the remote keyless entry receiver
receives the signal and sends it to the BCM. The BCM only locks/unlocks the doors if the ID number
matches. (Remote control entry functions)
Using the keyfob, the transmitter sends radio waves to the remote keyless entry receiver, which then
sends the received waves to the BCM. Only if the ID number matches does the BCM lock/unlock the
doors. (Remote control door function)
Unless the key is inserted into the ignition key cylinder or one of the doors is opened within 1 minute after
the UNLOCK switch on the keyfob is pressed, all the doors are automatically locked. (Auto lock function)
When a door is locked or unlocked, the vehicle turn signal lamps flash and the horn sounds to verify oper-
ation. (Active check function)
When the key is in the ignition key cylinder (when the key switch is ON) and one of the doors is open, the
door lock function does not work even when the door lock is operated with the keyfob.
Keyfob ID set up is available.
If a keyfob is lost, a new keyfob can be set up. A maximum of 5 IDs can be set up simultaneously.
Remote Control Entry Functions
Operation Description
When a button on the keyfob is operated, the signal is sent from the keyfob and received by the remote
keyless entry receiver.
The received signal is sent to the BCM and compared with the registered ID number.
If the ID number matches, the BCM sends the lock/unlock signal to each door lock actuator.
When the door lock actuators receive this signal, each operates to lock/unlock its door.
BCM locks all doors with input of LOCK signal from keyfob.
When an UNLOCK signal is sent from keyfob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from keyfob again within 5 seconds, all other doors will be unlocked.
Remote control entry operation conditions
Auto Lock Function
Operation Description
Unless the key is inserted into the ignition key cylinder, one of the doors is opened, or the keyfob is oper-
ated within 1 minute after a door lock is unlocked by keyfob operation, all the doors are automatically
locked.
The 1 minute timer count is executed by the BCM and after 1 minute, the BCM sends the lock signal to all
doors.
Lock operations are the same as for the remote control entry function.
Remote Control Automatic Back Door Function
Switching from all closed to all open
When a button on the keyfob is operated, the signal is sent from the keyfob and received by the remote
keyless entry receiver.
The received signal is sent to the BCM and compared with the registered ID number.
If the ID number matches, the BCM uses power window serial link communication to send the back door
open signal to the back door control unit
When the back door control unit receives the back door open signal for 0.5 seconds, if the remote control
automatic back door operation enable conditions are met, the warning chime is sounded and the back
door unlock signal is sent to the back door latch using communication.
When the back door latch receives the back door unlock signal, it operates the release actuator and
releases to back door latch.
Keyfob operation Operation condition
Door lock operation (locking)
With key removed (key switch: OFF)
Closing all doors (door switch: OFF)
Door lock operation (unlocking) With key removed (key switch: OFF)
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REMOTE KEYLESS ENTRY SYSTEM
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The back door control unit operates the back door motor to open the back door. (At this time, speed con-
trol, input reverse, and overload reverse control are executed.)
When the back door is opened to the fully open position, the full-open position is detected with the rotation
sensor, the back door motor is stopped.
The door held by the back door stays at the full open position.
Full open → full closed operation
When a button of the keyfob is operated, the signal is sent from the keyfob and received by the remote
keyless entry receiver.
The received signal is sent to the BCM and compared with the registered ID number.
If the ID number matches, the BCM uses power window serial link communication to send the back door
close request signal to the back door control unit.
When the back door control unit receives the back door close request signal for 0.5 seconds, if the remote
control automatic back door operation enable conditions are met, the warning chime is sounded and the
back door motor begins closing the back door.
The back door control unit operates the magnetic clutch and the back door motor to close the back door.
(At this time, the back door control unit executes speed control, input reverse, and overload reverse con-
trol.)
When the back door comes to the half-latch state, the back door latch detects the half-latch state through
half-latch switch operation. The back door latch latches the back door.
For the automatic back door system operation enable conditions, refer to BL-99, "
AUTOMATIC BACK DOOR
SYSTEM" .
Active Check Function
Operation Description
When a door is locked or unlocked by keyfob operation, the vehicle turn signals flash and the horn sounds to
verify operation.
When a button on the keyfob is operated, the signal is sent from the remote controller and received by the
keyless remote entry receiver.
The received signal is sent to the BCM and compared with the registered ID number.
If the ID number matches, the BCM sends the turn signal flashing and horn signal to the IPDM E/R.
The IPDM E/R flashes the turn signal lamps and sounds the horn for each keyfob operation.
Operating function of hazard and horn reminder
Hazard and Horn Reminder
BCM output to IPDM E/R for horn reminder signal as DATA LINE (CAN-H and CAN-L).
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “WORK SUPPORT” mode in “MULTI ANSWER BACK SET".
Without CONSULT-II
Refer to Owner's Manual for instructions.
Interior Lamp Operation
When the following input signals are both supplied:
all door switches are in the OFF position. (when all the doors are closed);
interior lamp switch is in DOOR position.
Remote keyless entry system turns on interior lamp and ignition keyhole illumination (for 30 seconds) with
input of UNLOCK signal from keyfob.
For detailed description, refer to LT-131, "
ROOM LAMP TIMER OPERATION" .
C mode S mode
Keyfob operation Lock Unlock Lock Unlock
Hazard warning lamp
flashTwic e O nc e Twic e —
Horn sound Once — — —
Page 815 of 3419
BL-48
REMOTE KEYLESS ENTRY SYSTEM
Revision: October 20052005 QX56
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), remote keyless entry system turns
on and off horn and headlamp intermittently with input of PANIC ALARM signal from keyfob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
Keyless Power Window Down (Open) Operation
When keyfob unlock switch is turned ON with ignition switch OFF, and the switch is detected to be ON contin-
uously for more than 1 second, the driver's door and passenger's door power windows are simultaneously
opened.
Power window is operated to open and the operation continues as long as the keyfob unlock switch is
pressed.
CAN Communication System DescriptionEIS008PY
Refer to LAN-5, "CAN COMMUNICATION" .