Ac system INFINITI QX4 2001 Factory Service Manual

Trouble DiagnosesNBEL0184WORK FLOWNBEL0184S01
SEL101WA
*1: EL-364
*2: EL-369*3: EL-369
*4: EL-370*5: EL-379
WARNING:
IWhenever possible, set the system to ªDemonstration
modeº if INFINITI Communicator system needs to be acti-
vated during service procedures. (For details of the dem-
onstration mode, refer to EL-379.)
IIf you activate the INFINITI Communicator system (when
the system is not in the demonstration mode), the Com-
municator Response Center operator may dispatch police.
INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses
EL-368

SEL532V
PRELIMINARY CHECKNBEL0184S021. Turn ignition switch ON.
2. Check ªMAYDAYº, ªINFORMATIONº, ªREDIALº and ªNO SER-
VICEº indicator lamps operation.
SEL516V
IIf no malfunction is detected, indicator lamps will turn off after
the bulb check (self-diagnosis) is terminated for about 30 sec-
onds or more.
NOTE:
IBulb check (self-diagnosis) is not performed unless the ignition
switch has been turned off for at least 3 minutes.
IBulb check is not performed during contact with Communica-
tor Response Center.
SEL517V
IIf the system detects malfunctions, both ªMAYDAYº and
ªINFORMATIONº indicator lamps remain illuminated. Perform
self-diagnosis using CONSULT-II and repair or replace the sys-
tem. Refer to ªHow to Perform Self-diagnosisº, EL-364.
NOTE:
For details of indicator lamps operation, refer to ªINDICATOR
LAMPS OPERATIONº, EL-354.
SYMPTOM CHART 1 (CONSULT-II SELF-DIAGNOSIS
ITEM)
NBEL0184S03
Detected items
(Screen items)Description Service procedure
CONNECTION ERROR
[GPS ANTENNA]Connection error between GPS antenna and IVCS unit.Go to GPS ANTENNA CHECK,
EL-376.
CELLULAR PHONE
[TWB ERROR]Communication error between CPU in the IVCS unit and
transceiverReplace IVCS unit.
MEMORY ERROR Inner memory error of the IVCS unit Replace IVCS unit.
CONNECTION ERROR
[AIR BAG]Connection error between air bag diagnosis sensor unit
and IVCS unit.Go to AIR BAG DIAGNOSIS SEN-
SOR COMMUNICATION CHECK,
EL-376.
CONNECTION ERROR [IVMS or
S/ENT]Connection error between smart entrance control unit
and IVCS unit.
If this error occurs, alarm notification and auto door
unlock may not operate.Go to SMART ENTRANCE CON-
TROL UNIT COMMUNICATION
CHECK, EL-376.
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INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-369

NOTE:
After replacing IVCS unit, set up the replaced IVCS unit. Refer
to ªSystem Setting (When IVCS Unit is Replaced.)º in EL-381.
SYMPTOM CHART 2 (BASED ON SYMPTOM)NBEL0184S04Before referencing this chart, confirm the operation of the indicator
lamps. Refer to ªPRELIMINARY CHECKº in EL-369. If the indica-
tors show the system is malfunctioning, perform the self-diagnosis
using CONSULT-II.
Symptom Diagnoses/service procedure Reference page
ªMAYDAYº, ªINFORMATIONº, ªRE-DIALº,
ªNO SERVICEº indicator lamps do not illu-
minate when ignition switch is turned to ON
position. (Bulb check is NG.)1. Power supply and ground circuit for IVCS unit check EL-371
2. Indicator lamps check EL-372
Mayday/Information call does not operate.1. IVCS switch check EL-373
2. INFINITI Communicator operation check in demonstration
modeEL-379
Remote door unlocking function does not
operate.1. Back door handle switch check EL-374
2. Remote door unlock function check EL-374
3. INFINITI Communicator operation check in demonstration
modeEL-379
Stolen vehicle tracking function does not
operate.1. Stolen vehicle tracking setting check
(Check whether the function is disabled or not.)EL-375
2. INFINITI Communicator operation check in demonstration
modeEL-379
Alarm notification function does not oper-
ate.1. Alarm notification setting check
(Check whether the function is disabled or not.)EL-375
2. INFINITI Communicator operation check in demonstration
modeEL-379
Hands free telephone cannot be operated
by using steering switch.
(Cellular phone operates properly by using
handset.)1. Telephone steering switch check EL-377
No sounds related to the telephone are
heard from Front RH speaker. (If the audio
does not operate properly, check the audio
system.)1. Check harness for open or short between IVCS unit and
audio unit.Ð
The ªNO SERVICEº indicator lamp is not
turned off. (Even if a contract with tele-
phone carrier has not been made, the indi-
cator lamp remains illuminated.)1. Make sure the vehicle is in an area with cellular service. Ð
2. Check cellular phone antenna feeder cable connection. Ð
Cellular phone does not operate properly.1. Check hand set connector connection. Ð
2. Check hand set. Ð
No sound is transmitted to the other party
by hands free telephone.1. Check harness for open or short between IVCS unit and
microphone.Ð
2. Replace microphone. (IVCS switch assembly) Ð
INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-370

BACK DOOR HANDLE SWITCH CHECK=NBEL0184S08
1 CHECK BACK DOOR HANDLE SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Select ªSWITCH MONITORº in ªDATA MONITORº mode.
3. Check the switch operation.
Condition:
When back door handle switch is pushed:
DR HANDLE ON
When back door handle switch is released:
DR HANDLE OFF
NOTE:
When CONSULT-II ªDATA MONITORº mode is operating, INFINITI Communicator does not dial to Communicator
Response Center when the switches are operated.
OK or NG
OK©Back door handle switch is OK.
NG©GO TO 2.
2 CHECK BACK DOOR HANDLE SWITCH
1. Disconnect back door handle switch connector.
2. Check continuity between back door handle switch terminals 1 and 2.
SEL375X
OK or NG
OK©Check the following.
IBack door handle switch ground circuit
IHarness for open or short between back door handle switch and IVCS unit
NG©Replace back door handle switch.
REMOTE DOOR UNLOCK FUNCTION CHECK
(CONSULT-II ªFUNCTION CHECKº MODE)
NBEL0184S09DescriptionNBEL0184S0901ªRemote door unlock functionº can be checked using CONSULT-
II. Driver side door can be unlocked according to the commands to
the smart entrance control unit by the IVCS unit.
NOTE:
Before performing the function check, confirm that power door lock
system operates properly.
INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-374

SEL450W
How to perform function check.
1. Lock the doors with door lock/unlock switch on driver's door
trim.
2. Touch ªFUNCTION CHECKº.
3. Touch ªDOOR UNLOCKº.
SEL451W
4. Touch ªSTARTº. Then driver side door will be unlocked.
IIf the door cannot be unlocked using CONSULT-II, check har-
ness for open or short between smart entrance control unit
terminal 20 and IVCS unit terminal 32.
STOLEN VEHICLE TRACKING/ALARM NOTIFICATION
SETTING CHECK (CONSULT-II ªCONFIGURATIONº
MODE)
NBEL0184S10
1 CHECK SYSTEM SETTING
1. Turn ignition switch ON.
2. Select ªVHCL TRACKINGº or ªALARM NOTIFICATIONº in ªCONFIGURATIONº mode.
3. Check the function setting.
SEL452W
ION shows the function is activated.
IOFF shows the function is deactivated.
Does the system setting comply with the customer's contract?
NOTE:
Setting of ªVEHICLE TRACKINGº must be ON at all times.
OK or NG
OK©System setting is OK.
NG©If either setting is OFF, contact the Communicator Response Center at 1-888-427-4812
to verify the system setting.
NOTE:
Whenever dialing the above number, some information about the vehicle will be
required by the operator. For details, refer to EL-348.
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INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-375

GPS ANTENNA CHECK=NBEL0184S11
1 CHECK VOLTAGE FOR GPS ANTENNA
1. Disconnect GPS feeder cable connector from IVCS unit.
2. Turn ignition switch ON.
3. Check voltage at IVCS unit GPS feeder cable terminal.
SEL106W
Does approx. 5V exist?
Ye s©Replace GPS antenna.
No©Replace IVCS unit.
AIR BAG DIAGNOSES SENSOR UNIT
COMMUNICATION CHECK
NBEL0184S12
1 AIR BAG OPERATION CHECK
Turn ignition switch ON and check air bag warning lamp operation. (For details, refer to RS-38.)
Does air bag warning lamp operate properly?
Ye s©Check harness connector connection between air bag diagnosis sensor unit and IVCS
unit.
No©Check supplemental restraint system. Refer to RS-29.
SMART ENTRANCE CONTROL UNIT COMMUNICATION
CHECK
NBEL0184S13
1 CHECK SMART ENTRANCE CONTROL UNIT OPERATION
Check the system related smart entrance control unit operation. (e.g.: power door lock, power window)
Does the system operate properly?
Ye s©Check harness for open or short between smart entrance control unit and IVCS unit.
No©Check smart entrance control unit. Refer to ªSMART ENTRANCE CONTROL UNITº in
the Service Manual. (EL-324)
INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-376

TELEPHONE STEERING SWITCH CHECK=NBEL0184S14
1 CHECK POWER SUPPLY FOR STEERING SWITCH
Check power supply for steering switch.
Does horn work?
Ye s©Check the following.
I10A fuse (No. 54, located in fuse and fusible link box)
IHorn relay
IHarness for open or short
No©GO TO 2.
2 CHECK STEERING SWITCH SUB-HARNESS
1. Remove driver's air bag module. For removal procedure, refer to RS section.
2. Check steering switch sub-harness for open or short and ground screw.
For details of the harness circuit, refer to ªSTEERING SWITCHº, EL-30.
OK or NG
OK©Check harness for open or short between telephone steering switch and IVCS unit. If the
circuit is OK, replace telephone steering switch.
NG©Replace or repair the harness.
Trouble Diagnoses for Intermittent IncidentNBEL0185DESCRIPTIONNBEL0185S01An intermittent incident may be occurring if all of the following conditions exist.
IBoth ªMAYDAYº emergency and ªINFORMATIONº indicators have shown that the system is malfunction-
ing.
ICONSULT-II self-diagnosis result screen indicates a trouble code with ªTIME=1orgreaterº.
IThe INFINITI Communicator system has not been previously serviced.
To find out the cause of a malfunction, follow the procedures shown below.
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INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-377

Demonstration ModeNBEL0186DESCRIPTIONNBEL0186S01By setting up the system in the demonstration mode, automatic
dialing operation can be confirmed by ªMAYDAYº emergency and
ªINFORMATIONº switch operation.
Automatic dialing in this mode is connected to the demonstration
center of Communicator Response Center, and is different from the
normal service.
When the contract with Communicator Response Center is not
concluded, all the INFINITI Communicator operations are con-
nected to the demonstration center.
Connection to Communicator Response Center in this mode will
not be charged by Communicator Response Center nor will the call
be handled as an emergency.
SEL453W
SYSTEM OPERATION CHECKNBEL0186S021. Touch ªCONFIGURATIONº.
SEL454W
2. Touch ªDEMO MODEº.
SEL455W
3. Touch ªONº. Now, the system is in demonstration mode. (To
return to normal mode, touch ªOFFº.)
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INFINITI COMMUNICATOR (IVCS)
Demonstration Mode
EL-379

SEL528V
4. Touch ªBACKº key of CONSULT-II until ªSELECT SYSTEMº
appears, then turn off CONSULT-II.
5. Turn ignition switch to the OFF position.
6. Disconnect CONSULT-II DDL connector.
7. Start the engine.
8. Touch the ªMAYDAYº or ªINFORMATIONº switches. Then the
system will call the demonstration center.
SEL529V
9. Check INFINITI Communicator operation.
IIf contact with Communicator Response Center is successful,
system is OK.
NOTE:
During the system contact to Communicator Response Cen-
ter in demonstration mode, ªREDIALº and ªNO SERVICEº indi-
cators blink alternately.
SEL530V
IIf ªNO SERVICEº indicator illuminates and the contact to Com-
municator Response Center is unsuccessful, retry from other
location where the cellular connection seems good. (e.g.;
move the vehicle outside of the workshop and retry.)
NOTE:
If ªNO SERVICEº indicator frequently illuminates from a loca-
tion where the cellular connection seems good, check the con-
nection of the feeder cable for the cellular phone antenna.
SEL531V
IIf ªREDIALº indicator lamp illuminates and the contact to Com-
municator Response Center is unsuccessful, the cellular net-
work is busy or there are no open cellular channels. The sys-
tem will redial automatically.
NOTE:
If redial fails several times, confirm whether the roaming
agreement of customer's cellular provider at the vehicle loca-
tion is available or not.
WARNING:
IMake sure to turn the demonstration mode OFF before
returning the vehicle to the owner.
IIn the demonstration mode, any service from Communica-
tor Response Center is not available. Therefore, even if
the customer encounters an emergency, no service will be
dispatched.
INFINITI COMMUNICATOR (IVCS)
Demonstration Mode (Cont'd)
EL-380

System Setting (When IVCS Unit is Replaced)NBEL0187DESCRIPTIONNBEL0187S01When the IVCS unit is replaced, carry out the following data set-
tings.
IPhone setup Ð Data setting regarding NAM (Number Assign-
ment Module)
IPhone number Ð Phone number setting
NOTE:
IData must not be updated without prior approval from the
customer.
INAM and phone number can be programed by using hand-
set. For details, refer to the handset operation manual.
IThe IVCS unit does not permit updating of NAM more than
15 times.
WORK FLOWNBEL0187S02
SEL108WC
*1: EL-382 *2: EL-383 *3: EL-384
NOTE:
IIf a Communicator Response Center operator does not
come on line even though the system activates, the sys-
tem may not be properly configured. Call the Communica-
tor Response Center at 1-888-427-4812 to verify the con-
figuration information.
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INFINITI COMMUNICATOR (IVCS)
System Setting (When IVCS Unit is Replaced)
EL-381