ESP inoperative INFINITI QX4 2001 Factory Service Manual

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NBEC0002The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to INFINITI QX4 is as follows:
IFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt
pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
IFor a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision), wiring
harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
ITo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed
by an authorized INFINITI dealer.
IImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
IDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precautions for On Board Diagnostic (OBD)
System of Engine and A/T
NBEC0003The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
IBe sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc.
will cause the MIL to light up.
IBe sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
ICertain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to EL-6, ªHARNESS
CONNECTOR (SLIDE-LOCKING TYPE)º.
IBe sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to light up due to the short circuit.
IBe sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the fuel injection system, etc.
IBe sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PRECAUTIONS
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
EC-14

SYSTEM LIMITATIONSNBEL0180S03Service AreaNBEL0180S0301Depending on the cellular provider chosen, service is provided in
the 48 contiguous states. Service is not available in Alaska, Hawaii,
Canada, or Mexico. The Communicator Response Center will not
be able to locate the customer's vehicle outside of the continental
United States.
Inoperative if Cellular Phone is Inactive or InoperativeNBEL0180S0302INFINITI Communicator will be inoperative if the customer does not
have an active account with cellular provider, since INFINITI Com-
municator relies on the cellular network. When the INFINITI Com-
municator system is outside of cellular service, the ªNO SERVICEº
indicator will illuminate. If you try to activate INFINITI
Communicator, the REQUEST will be cancelled. Cellular phone
transmission may become temporarily disabled, or interrupted by
environmental factors like tunnels, bridges, or tall buildings. In such
cases, INFINITI Communicator will re-dial up to four times. After
several failed attempts, the system will quit dialing and return to
normal mode.
Inoperative if The System is in The Demonstraiton
Mode
NBEL0180S0303The INFINITI Communicator system remains in the demonstration
mode until the setup procedures are completed. If the system is
activated in this mode, the Communicator Response Center will
recognize this operation as a demonstration and will not provide
any service. The system can be changed to the demonstration
mode by using CONSULT-II to check the system operation. Do not
forget to turn off the demonstration mode after confirmation.
BatteryNBEL0180S0304Since INFINITI Communicator is powered by the vehicle's battery,
if the battery is removed, damaged or discharged, the system will
not work.
Inopertive if Cellular System is BusyNBEL0180S0305When INFINITI Communicator tries to contact the Communicator
Response Center, but the cellular network is busy, the system
attempts to re-dial for up to two hours. This time varies greatly
depending on the cellular network and cellular signal strength. The
system resets to ready when the system completes the re-dialing
attempts.
RoamingNBEL0180S0306If the customer's cellular provider does not have a roaming agree-
ment with the provider where the vehicle locates, it may not be
possible to use the lines of a different cellular provider. Therefore,
it is impossible that INFINITI Communicator will contact the Com-
municator Response Center.
Special Cellular FeaturesNBEL0180S0307Some cellular carriers offer custom phone numbers that are
assigned a Personal Identification Number (PIN). The cellular
phone user is required to enter the PIN anytime a phone call is
made. The INFINITI Communicator system is not compatible with
the PIN feature. A PIN requirement on the cellular phone will cause
the INFINITI Communicator system to be inoperative.
Other special features such as call waiting, voice mail, call
forwarding, etc. can interfere with INFINITI Communicator system
operation.
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INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
EL-351

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