lock INFINITI QX56 2009 Factory Service Manual

SEC-14
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS
Inside key antenna
Detects if Intelligent Key is inside the vehicle.
Intelligent Key warning buzzer Warns the user of the lock/unlock condition and inappropriate operations with the buzzer sound.
Ignition knob switch Monitors the status of the ignition knob switch.
NATS antenna amp. Detects the mechanical key presence in the ignition key cylinder.
Security indicator Indicates the status of the security system.
IPDM E/R Monitors the ignition switch and the park switch signal from the TCM.
Item
Function
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VEHICLE SECURITY SYSTEMSEC-15
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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VEHICLE SECURITY SYSTEM
System DiagramINFOID:0000000003775876
System DescriptionINFOID:0000000003775877
DESCRIPTION
The security system provides an audible and visual alarm when an unauthorized access to the vehicle is
detected while the system is in armed phase.
The security system consist of the BCM managing the audible alarm (horn) and the visual alarm (headlamps).
OPERATION FLOW
Disarmed Phase
When the vehicle is being driven or when doors are open, the theft warning system is set in the disarmed
phase on the assumption that the owner is inside or near the vehicle.
Pre-Armed Phase And Armed Phase
The vehicle security system turns into the pre-armed phase when ignition switch is in OFF position, all doors
are closed and locked (using Intelligent Key, door reques t switch or auto relock function). The system auto-
matically shifts into the armed phase.
Condition of Activating The System
When the following condition is performed in armed phase, the system sounds the horns and flashes the
headlamps for about 30 seconds.
• Any door is opened.
ALKIA1420GB
PIIA1367E
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SEC-16
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
VEHICLE SECURITY SYSTEM
Condition of Deacti
vating The System
When one of the following operations is performed, the armed phase is canceled.
• Unlock the doors with Intelligent Key or door request switch.
• Use the mechanical key to unlock the driver door using the door key cylinder.
Component Parts LocationINFOID:0000000003775878
ALKIA0961ZZ
1. BCM M18, M19, M20
(view with instrument panel LH removed) 2. IPDM E/R E122, E124
(view with co ver removed) 3. Horn relay H-1
4. Main power window and door lock/unlock switch D7, D8 5. Power window and door lock/unlock
switch RH D105 6. Front door lock assembly LH (key cylin-
der switch) D14
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VEHICLE SECURITY SYSTEMSEC-17
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Component DescriptionINFOID:0000000003775879
7. Front door switch LH B8 RH B108 8. Rear door switch LH B18
RH B116 9. Back door latch (door ajar switch) D503
Glass hatch ajar switch D707
10. Hood switch E8 11. Horn E3
(view with hood open) 12. Combination meter M24
13. Security indicator lamp
Item Function
BCM Controls the door lock function and room lamp function.
Door switch Provides the BCM with the status of each monitored door.
Hood switch Provides the IPDM E/R with the status of the hood.
Security indicator Indicates the status of the security system.
IPDM E/R Controls the horn and headlamp operation.
Horn Sounds when the vehicle security system is triggered.
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SEC-18
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000004221462
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:0000000004221463
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-51, "
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 ×××
Remote keyless entry system MULTI REMOTE ENT ××
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 ×
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SEC-20
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (I
NTELLIGENT KEY UNIT)
DIAGNOSIS SYSTEM (INT ELLIGENT KEY UNIT)
CONSULT-III Function (INTELLIGENT KEY)INFOID:0000000004221469
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with Intelligent Key unit.
SELF-DIAG RESULT
Refer to SEC-95, "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.
Monitor Item Condition
PUSH SW Indicates [ON (pushed)/OFF (released)] condition of ignition knob switch.
KEY SW Indicates [ON (inserted)/OFF (removed)] condition of key switch.
DR REQ SW Indicates [ON (pressed)/OFF (released)] condition of door request switch (driver side).
AS REQ SW Indicates [ON (pressed)/OFF (released)] condition of door request switch (passenger
side).
BD/TR REQ SW This item is shown but not monitored.
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.
P RANGE SW Indicates [ON/OFF] position of shift lever park position switch.
BD OPEN SW This item is shown but not monitored.
TR CANCEL SW This item is shown but not monitored.
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.
KEYLESS TRUNK SW This item is shown but not monitored.
KEYLESS PANIC SW Indicates [ON (pressed)/OFF (released)] condition of Intelligent Key panic button.
KEYLS PSD LH This item is shown but not monitored.
KEYLS PSD RH This item is shown but not monitored.
KEYLS PBD SIG Indicates [ON (pressed)/OFF (released)] condition of Intelligent Key back door button.
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.
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DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)SEC-21
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ACTIVE TEST
TRUNK SW This item is shown but not monitored.
VEHICLE SPEED Displays the vehicle speed signal received from combination meter by numerical value
[km/h].
Monitor Item
Condition
Test itemDescription
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 (front of center console) detects Intelligent Key,
when “ROOM ANT1” is selected.
• ROOM ANT2: Inside key antenna (rear luggage area) detects Intelligent Key, when “ROOM ANT2”is selected.
• ROOM ANT3: Inside key antenna (rear of center console) detects Intelligent Key,
when “ROOM ANT3” is selected.
• ROOM ANT4: Inside key antenna (roof console) detects Intelligent Key, when “ROOM ANT4”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
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SEC-24
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2013 ID DISCORD I-KEY-STRG
B2013 ID DISCORD I-KEY-STRG
DescriptionINFOID:0000000003775891
Intelligent Key unit performs the ID verification with the
steering lock solenoid and releases the steering lock if
both Intelligent Key unit and steering lock solenoid ID are same. Intelligent Key unit starts the communication
with the steering lock solenoid when Intelligent Key is carried into the vehicle and the ignition knob switch is
pressed.
DTC LogicINFOID:0000000003775892
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the ignition knob switch.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-24, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000003775893
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Manual”.
Can the system be initialized and can steering lo ck be released with re-registered mechanical key?
YES >> Steering lock solenoid was unregistered.
NO >> GO TO 2
2.CHECK STEERING LOCK SOLENOID POWER SUPPLY-1
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3.CHECK STEERING LOCK SOLENOID GROUND CIRCUIT
DTC No.Trouble diagnosis
name DTC detecting condition
Possible cause
B2013 STRG COMM 1 The ID verification results between Intelligent Key
unit and steering control unit are NG. The registra-
tion is necessary.
Steering lock solenoid
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Steering lock solenoid con-
nector Te r m i n a l
M15 1Ground Battery voltage
WIIA1202E
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B2013 ID DISCORD I-KEY-STRGSEC-25
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Check continuity between steering lock solenoid harness connector
and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK STEERING LOCK SOLE NOID COMMUNICATION CIRCUITS
1. Disconnect Intelligent Key unit connector.
2. Check continuity between steer ing lock solenoid connector (A)
M15 terminals 2, 3 and Intelligent Key unit connector (B) M70
terminals 1, 32.
3. Check continuity between steer ing lock solenoid connector (A)
M15 terminals 2, 3 and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace harness.
5.CHECK INTELLIGENT KEY UNIT POWER SUPPLY-2
1. Connect Intelligent Key unit connector.
2. Check voltage between Intelligent Key unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Replace Intelligent Key unit. Refer to S E C - 111 ,
"Removal and Installation".
6.CHECK STEERING LOCK SOLE NOID COMMUNICATION CIRCUIT
1. Connect steering lock solenoid connector.
Te r m i n a l s
Continuity
(+)
(–)
Steering lock solenoid con-
nector Te r m i n a l
M15 4Ground Yes
WIIA1203E
Te r m i n a l s
Continuity
Steering lock sole-
noid connector Te r m i n a l
Intelligent Key unit
connector Te r m i n a l
M15 2
M70 1
Ye s
33 2
Te r m i n a l s Continuity
Steering lock solenoid connector Terminals
M15 2
Ground No
3
WIIA1206E
Te r m i n a l s
Voltage (V)
(Approx.)
(+)
(–)
Intelligent Key unit connector Terminal
M70 1Ground 5
WIIA1204E
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SEC-26
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2013 ID DISCORD I-KEY-STRG
2. Using an oscilloscope, check voltage between Intelligent Key
unit connector and ground.
Is the inspection result normal?
YES >> Replace Steering lock solenoid.
NO >> Replace Intelligent Key unit. Refer to S E C - 111 , "
Removal and Installation".
WIIA1205E
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+)
(–)
Intelligent Key
unit connector Te r m i n a l
M70 32GroundSteering
lock Ignition knob is pushed
LOCK status
5
LOCK ⇔ UNLOCK
For 15 seconds after
UNLOCK 5
15 seconds later UN-
LOCK 0
SIIA1911J
JMKIA0433ZZ
Revision: December 20092009 QX56