key INFINITI QX4 2001 Factory Workshop Manual

NOTE:
IWhen any initialization is performed, all ID previously reg-
istered will be erased and all IVIS (NATS) ignition keys
must be registered again.
IThe engine cannot be started with an unregistered key. In this
case, the system will show ªDIFFERENCE OF KEYº or ªLOCK
MODEº as a self-diagnostic result on the CONSULT-II screen.
IIn rare case, ªCHAIN OF ECM-IMMUº might be stored as a
self-diagnostic result during key registration procedure, even if
the system is not malfunctioning.
HOW TO READ SELF-DIAGNOSTIC RESULTSNBEL0223S03
SEL364X
IVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHARTNBEL0223S04
Detected items (NATS program card
screen terms)P No. Code
(Self-diag-
nostic
result of
ªENGINEºMalfunction is detected when .....
Reference page
ECM INT CIRC-IMMUNATS MAL-
FUNCTION
P1613The malfunction of ECM internal circuit of IMMU com-
munication line is detected. EL-336
CHAIN OF ECM-IMMUNATS MAL-
FUNCTION
P1612Communication impossible between ECM and IMMU
(In rare case, ªCHAIN OF ECM-IMMUº might be stored
during key registration procedure, even if the system is
not malfunctioning.)EL-337
DIFFERENCE OF KEYNATS MAL-
FUNCTION
P1615IMMU can receive the key ID signal but the result of ID
verification between key ID and IMMU is NG. EL-341
CHAIN OF IMMU-KEYNATS MAL-
FUNCTION
P1614IMMU cannot receive the key ID signal.
EL-342
ID DISCORD, IMM-ECMNATS MAL-
FUNCTION
P1611The result of ID verification between IMMU and ECM is
NG. System initialization is required. EL-343
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
CONSULT-II (Cont'd)
EL-332

Detected items (NATS program card
screen terms)P No. Code
(Self-diag-
nostic
result of
ªENGINEºMalfunction is detected when .....
Reference page
LOCK MODENATS MAL-
FUNCTION
P1610When the starting operation is carried out five or more
times consecutively under the following conditions, IVIS
(NATS) will shift the mode to one which prevents the
engine from being started.
IUnregistered ignition key is used.
IIMMU or ECM's malfunctioning.EL-346
DON'T ERASE BEFORE
CHECKING ENG DIAGÐAll engine trouble codes except IVIS (NATS) trouble
code has been detected in ECM.EL-334GI
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
CONSULT-II (Cont'd)
EL-333

SYMPTOM MATRIX CHART 1NBEL0224S02(Self-diagnosis related item)
SYMPTOMDisplayed ªSELF-DIAG
RESULTSº on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART NO.
OF ILLUSTRATION ON
NEXT PAGE
ISecurity indicator
lighting up*
IEngine cannot be
started.ECM INT CIRC-IMMUPROCEDURE 1
(EL-336)ECM B
CHAIN OF ECM-IMMUPROCEDURE 2
(EL-337)In rare case, ªCHAIN
OF ECM-IMMUº might
be stored during key
registration procedure,
even if the system is
not malfunctioning.Ð
Open circuit in battery
voltage line of IMMU
circuitC1
Open circuit in ignition
line of IMMU circuitC2
Open circuit in ground
line of IMMU circuitC3
Open circuit in commu-
nication line between
IMMU and ECMC4
Short circuit between
IMMU and ECM com-
munication line and bat-
tery voltage lineC4
Short circuit between
IMMU and ECM com-
munication line and
ground lineC4
ECM B
IMMU A
DIFFERENCE OF KEYPROCEDURE 3
(EL-341)Unregistered key D
IMMU A
CHAIN OF IMMU-KEYPROCEDURE 4
(EL-342)Malfunction of key ID
chipE
IMMU A
ID DISCORD, IMM-
ECMPROCEDURE 5
(EL-343)System initialization has
not yet been com-
pleted.F
ECM F
LOCK MODEPROCEDURE 7
(EL-346)LOCK MODE D
IMIL staying ON
ISecurity indicator
lighting up*DON'T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(EL-334)Engine trouble data and
IVIS (NATS) trouble
data have been
detected in ECMÐ
*: When IVIS (NATS) detects trouble, the security indicator lights up while ignition key is in the ªONº position.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-335

DIAGNOSTIC PROCEDURE 2=NBEL0224S06Self-diagnostic results:
ªCHAIN OF ECM-IMMUº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªCHAIN OF ECM-IMMUº displayed on CONSULT-II screen.
NOTE:
In rare case, ªCHAIN OF ECM-IMMUº might be stored during key registration procedure, even if the system is not mal-
functioning.
SEL366X
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 CHECK POWER SUPPLY CIRCUIT FOR IMMU
1. Disconnect IMMU connector.
2. Check voltage between terminal 8 of IMMU and ground with CONSULT-II or tester.
SEL302WD
OK or NG
OK©GO TO 3.
NG©Check the following
I7.5A fuse (No. 62, located in the fuse and fusible link box)
IHarness for open or short between fuse and IMMU connector
Ref. Part No. C1
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-337

DIAGNOSTIC PROCEDURE 3=NBEL0224S07Self-diagnostic results:
ªDIFFERENCE OF KEYº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªDIFFERENCE OF KEYº displayed on CONSULT-II screen.
SEL367X
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all IVIS (NATS) ignition key IDs.
For initialization and registration of IVIS (NATS) ignition key IDs, refer to ªCONSULT-II operation manual IVIS/NVISº.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.
Can the system be initialized and can the engine be started with re-registered IVIS (NATS) ignition key?
Ye s©Ignition key ID was unregistered.Ref. part No. D
No©IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual IVIS/NVISº.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-341

DIAGNOSTIC PROCEDURE 4=NBEL0224S08Self-diagnostic results:
ªCHAIN OF IMMU-KEYº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªCHAIN OF IMMU-KEYº displayed on CONSULT-II screen.
SEL368X
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 CHECK IVIS (NATS) IGNITION KEY ID CHIP
Start engine with another registered IVIS (NATS) ignition key.
Does the engine start?
Ye s©Ignition key ID chip is malfunctioning.
Replace the ignition key.
Ref. part No. E
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II Operation Manual IVIS/NVISº.
No©GO TO 3.
3 CHECK IMMU INSTALLATION
Check IMMU installation.
Refer to ªHow to Replace IMMUº in EL-347.
OK or NG
OK©IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II Operation Manual IVIS/NVISº.
NG©Reinstall IMMU correctly.
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-342

DIAGNOSTIC PROCEDURE 5=NBEL0224S09Self-diagnostic results:
ªID DISCORD, IMM-ECMº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªID DISCORD, IMM-ECMº displayed on CONSULT-II screen.
SEL369X
NOTE:
ªID DISCORD IMMU-ECMº:
Registered ID of IMMU is in discord with that of ECM.
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all IVIS (NATS) ignition key IDs.
For initialization, refer to ªCONSULT-II operation manual IVIS/NVISº.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.
Can the system be initialized?
Ye s©Start engine. (END)
(System initialization had not been completed.Ref. part No. F)
No©ECM is malfunctioning.
Replace ECM.Ref. part No. F
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual IVIS/NVISº.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-343

DIAGNOSTIC PROCEDURE 7=NBEL0224S11Self-diagnostic results:
ªLOCK MODEº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªLOCK MODEº is displayed on CONSULT-II screen.
SEL371X
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.
Does engine start?
Ye s©System is OK.
(Now system is escaped from ªLOCK MODEº.)
No©GO TO 3.
3 CHECK IMMU ILLUSTRATION
Check IMMU installation. Refer to ªHow to Replace IMMUº in EL-347.
OK or NG
OK©GO TO 4.
NG©Reinstall IMMU correctly.
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-346

4 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual IVIS/NVISº.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows the above message on the screen.
Can the system be initialized?
Ye s©System is OK.
No©GO TO DIAGNOSTIC PROCEDURE 4 to check ªCHAIN OF IMMU-KEYº, refer to
EL-342.
SEL096WB
How to Replace IVIS (NATS) IMMUNBEL0225NOTE:
IIf IVIS (NATS) IMMU is not installed correctly, IVIS (NATS)
system will not operate properly and SELF-DIAG
RESULTS on CONSULT-II screen will show ªLOCK
MODEº.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-347

IThe vehicle location data is calculated using GPS.
IThe vehicle ignition switch must be turned to the ON position
to obtain the vehicle location. (This is because the system is
in the sleep mode when the ignition switch is OFF.)
IOnce this function starts up, regardless of the ignition switch
position, the system keeps transmitting the vehicle location
until the cancel signal is transmitted from the Communicator
Response Center.
IWhile this function is operating, the operator can covertly moni-
tor what is happening inside the vehicle through the hands-free
microphone.
Alarm NotificationNBEL0180S0405IWhen theft warning system sounds an alarm for more than 7
seconds because of improper access, the alarm signal is
transmitted from the smart entrance control unit to the IVCS
unit, and the system executes automatic dialing to the Com-
municator Response Center.
If the alarm is reset before 7 seconds has elapsed, the
INFINITI Communicator will not place a call to the Communi-
cator Response Center.
IThis function operates regardless of ignition switch position.
IWhile this function is operating, the operator can covertly moni-
tor what is happening inside the vehicle through the hands-free
microphone.
Remote Door UnlockNBEL0180S0406IWhen the door is locked with the key inside the vehicle, the
door can be unlocked by contacting the Communicator
Response Center. (Proof that the person calling is the owner
must be received by the Communicator Response Center.)
IWhen the ignition key is in the ªOFFº position, the system is in
the sleep mode. Therefore, back door outside handle must be
pulled to wake up the system.
ITo perform remote door unlock, call the Communicator
Response Center and follow the operator's instructions.
NOTE:
IWhen the system contacts the Communicator Response
Center, data including the vehicle location is transmitted
to the Communicator Response Center.
ICommunication with the Communicator Response Center
is not completed until the completion signal is transmitted
from the Communicator Response Center. (Any calls to
the Communicator Response Center can only be termi-
nated by Communicator Response Center.)
IFunctions other than alarm notification and remote door
unlock operate while the ignition switch is ON and only for
three minutes after the switch is turned OFF.
IOnce a call to the Communicator Response Center is
made, the communication continues regardless of the
ignition key switch position.
IAll the voice communication with the Communicator
Response Center is made through the hands-free tele-
phone.
IWhen the INFINITI Communicator system is activated, the
handset does not function.
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INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
EL-353