ignition INFINITI QX4 2001 Factory Service Manual

5 CHECK COMMUNICATION LINE OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check harness continuity between ECM terminal 116 and IMMU terminal 1.
SEL305WD
OK or NG
OK©GO TO 6.
NG©Repair harness or connector.
Ref. part No. C4
6 CHECK COMMUNICATION LINE BATTERY SHORT CIRCUIT
1. Turn ignition ON.
2. Check voltage between ECM terminal 116 or IMMU terminal 1 and ground.
SEL306WD
OK or NG
OK©GO TO 7.
NG©Communication line is short-circuited with battery voltage line or ignition switch ON line.
Repair harness or connectors.
Ref. part No. C4
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-339

7 CHECK COMMUNICATION LINE GROUND SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between ECM terminal 116 or IMMU terminal 1 and ground.
SEL307WD
OK or NG
OK©GO TO 8.
NG©Communication line is short-circuited with ground line.
Repair harness or connectors.
Ref. part No. C4
8 SIGNAL FROM ECM TO IMMU CHECK
1. Check the signal between ECM terminal 116 and ground with CONSULT-II or oscilloscope when ignition switch is
turned ªONº.
2. Make sure signals which are shown in the figure below can be detected during 750 msec. just after ignition switch is
turned ªONº.
SEL730W
OK or NG
OK©IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For the operation of initialization, refer to ªCONSULT-II Operation Manual IVIS/NVISº.
NG©ECM is malfunctioning.
Replace ECM.Ref. part No. B
Perform initialization with CONSULT-II.
For the operation of initialization, refer to ªCONSULT-II Operation Manual IVIS/NVISº.
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-340

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.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
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.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-343

DIAGNOSTIC PROCEDURE 6=NBEL0224S10ªSECURITY INDICATOR LAMP DOES NOT LIGHT UPº
1 CHECK FUSE
Check 10A fuse [No. 12, located in the fuse block (J/B)].
Is 10A fuse OK?
Ye s©GO TO 2.
No©Replace fuse.
2 CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse.
2. Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II Operation Manual IVIS/NVISº.
3. Turn ignition switch OFF.
4. Start engine and turn ignition switch OFF.
5. Check the security indicator lamp lighting.
Security indicator lamp should be blinking.
OK or NG
OK©INSPECTION END
NG©GO TO 3.
3 CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect security indicator lamp connector.
2. Check voltage between security indicator lamp connector terminal 1 and ground.
SEL370X
OK or NG
OK©GO TO 4.
NG©Check harness for open or short between fuse and security indicator lamp.
4 CHECK SECURITY INDICATOR LAMP
Check security Indicator Lamp.
Is security indicator lamp OK?
Ye s©GO TO 5.
No©Replace security indicator lamp.
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM Ð NATS)
Trouble Diagnoses (Cont'd)
EL-344

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

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.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
EL-353

DATA TRANSMITTINGNBEL0180S05When contact to the Communicator Response Center is made,
vehicle sends electrical data including type of activation (i.e., emer-
gency call or alarm notification), vehicle location, time, etc.
SLEEP/WAKE UP CONTROLNBEL0180S063 minutes after the ignition switch is turned OFF, the system goes
into the SLEEP MODE to save battery power supply. Communica-
tion with Communicator Response Center is not available in the
SLEEP MODE.
To wake up the system, perform either of the following operations.
ITurn Ignition switch ON.
IPull back door outside handle for more than 10 seconds.
(Operation for door unlock function)
SEL532V
INDICATOR LAMPS OPERATIONNBEL0180S07The system status is displayed as below by the indicator lamps.
Indicator Condition Description
MAYDAYBlinks.System is trying to acquire an available cellu-
lar channel by ªMaydayº switch operation.
Lights up.
(See NOTE.)System is connected to a cellular channel and
is communicating information to the Commu-
nicator Response Center.
INFORMA-
TIONBlinks.System is trying to acquire an available cellu-
lar channel by ªInformationº switch operation.
Lights up.
(See NOTE.)System is connected to a cellular channel and
is communicating information to the Commu-
nicator Response Center.
REDIALLights up. Re-dialing
Blinks. Waiting for re-dial
NO SERVICE Lights up.Out of CELLULAR PHONE service area or
signal is too weak.
NOTE:
IWhen connection to Communicator Response Center by
re-dial ends in failure, all the indicators are turned off.
IAll indicators illuminate for up to 30 seconds or more
when ignition switch is turned from OFF to ON and the
system performs a self check.
IIf both of MAYDAY and INFORMATION indicators do not
turn off 30 seconds or more after the ignition switch is
turned to ON, the system is malfunctioning.
AUTOMATIC RE-DIAL/AUTO RESET TO READYNBEL0180S08IWhen INFINITI Communicator tries to contact the Communi-
cator Response Center, but the cellular network is busy, the
system attempts to dial for up to 2 hours. This time varies
INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
EL-354

SEL100W
HANDSETNBEL0180S10NOTE:
IIf an optional handset is installed, INFINITI Communicator can
be used as a normal cellular phone.
IIf INFINITI Communicator is activated when INFINITI Commu-
nicator system's cellular phone is in use, the current phone
transmission will be cut and INFINITI Communicator will dial
the Communicator Response Center. The cellular handset will
be disabled, and communication with the Communicator
Response Center operator will be carried out through the
hands-free microphone.
IAfter communication with Communicator Response Center is
finished, the handset last number memory will be erased.
IWhile INFINITI Communicator is activated, the handset
becomes inoperative and all communication with the operator
is accomplished via the hands-free phone. When an activation
is terminated, the handset will be unlocked.
SEL588VA
TEL SWITCHNBEL0180S11When any of the TEL switches is pressed, the TEL switch which is
combined with the multiplex transmitting unit sends operational
commands to the IVCS unit. TEL switch has following three func-
tions.
IVolume adjust
IPlacing re-dial call
IPlacing memorized call (The telephone numbers are stored in
the handset. A maximum of 6 memories are operative.)
VOLUME SwitchNBEL0180S1103Voice volume from the front RH speaker can be adjusted by using
the VOLUME switch.
SEND/END Switch Operation (Without Navigation
System)
NBEL0180S1101IWhen a call is received, press SEND/END switch to permit
conversation.
IAt the completion of the conversation, press the SEND/END
switch to terminate the call.
ITo re-dial the last phone number, press SEND/END switch.
MEMORY Switch Operation (Without Navigation
System)
NBEL0180S1102IA maximum of 6 telephone numbers which stored in the
memory of the handset can be dialed by MEMORY switch
operation.
IThe last phone number is erased if the ignition switch is turned
off or if the INFINITI Communicator system has been activated.
IFor the procedure to input telephone numbers, refer to the
handset operation manual.
ITo select memory 1 to 6, push MEMORY switch A or B. Every
push on the switch changes the memory as follows.
SWITCH A: Memory 1,2,3,OFF
SWITCH B: Memory 4,5,6,OFF
INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
EL-356