Infiniti FX35, FX50 (S51). Manual — part 1924
WCS-116
< SYMPTOM DIAGNOSIS >
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND
Description
INFOID:0000000005524746
• Seat belt warning does not sound even though driver seat belt is not fastened.
• Seat belt warning sounds even though driver seat belt is fastened.
Diagnosis Procedure
INFOID:0000000005524747
1.
CHECK SEAT BELT WARNING LAMP
1.
Turn ignition switch ON.
2.
Check the operation of the seat belt warning lamp in the combination meter.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
Check the buckle switch input signal with the “Data Monitor”. Refer to
Is the inspection result normal?
YES
>> Replace the unified meter and A/C amp.
NO
>> GO TO 3.
3.
CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
Perform the check for the seat belt buckle switch circuit. Refer to
Is the inspection result normal?
YES
>> Replace the unified meter and A/C amp.
NO
>> Repair harness or connector.
4.
CHECK SEAT BELT BUCKLE SWITCH UNIT
Perform a unit check for the seat belt buckle switch. Refer to
WCS-25, "Component Inspection"
Is the inspection result normal?
YES
>> Replace the combination meter.
NO
>> Replace the seat belt buckle. Refer to
SB-8, "SEAT BELT BUCKLE : Removal and Installation"
Seat belt fastened
: OFF
Seat belt not fastened
: ON
WCS
PRECAUTIONS
WCS-117
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005524748
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To 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 NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
WT-1
SUSPENSION
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SECTION
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CONTENTS
ROAD WHEELS & TIRES
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORK FLOW . . .
Work Flow . . . . . . . . . . . . . . . .....
INSPECTION AND ADJUSTMENT . . . . . .
TRANSMITTER WAKE UP OPERATION . . . . ...
TRANSMITTER WAKE UP OPERATION : De-
scription . . . . . . . . . . . . . . . . .....
TRANSMITTER WAKE UP OPERATION : Trans-
mitter Wake-up Procedure . . . . . . . . . ....
ID REGISTRATION PROCEDURE . . . . . . . ..
ID REGISTRATION PROCEDURE : Description . ..
ID REGISTRATION PROCEDURE : Transmitter
ID Registration Procedure . . . . . . . . . .....
SYSTEM DESCRIPTION . . . . . . . ..
TPMS . . . . . . . . . . . . . . . . ...
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
DIAGNOSIS SYSTEM (LOW TIRE PRES-
SURE WARNING CONTROL UNIT) . . . . ..
Diagnosis Description . . . . . . . . . . . .
CONSULT-III Function . . . . . . . . . . .
DTC/CIRCUIT DIAGNOSIS . . . . . . .
C1704, C1705, C1706, C1707 LOW TIRE
PRESSURE . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
C1708, C1709, C1710, C1711 TRANSMITTER
(NO DATA) . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Special Repair Requirement . . . . . . . . .
C1716, C1717, C1718, C1719 TRANSMITTER
(PRESSDATA) . . . . . . . . . . . . ..
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
Special Repair Requirement . . . . . . . . .
C1720, C1721, C1722, C1723 TRANSMITTER
...
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Special Repair Requirement . . . . . . . . .
C1728 RECEIVER ID . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
C1729 VEHICLE SPEED SIG ERR . . . . ...
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
C1750, C1751, C1752, C1753 RECEIVER . ...
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
C1754 LOW TIRE PRESSURE WARNING
CONTROL UNIT . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
WT-2
C1755, C1756, C1757, C1758 POOR RE-
CEIVING CONDITIONS . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
U1000 CAN COMM CIRCUIT . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
U1010 CONTROL UNIT (CAN) . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
POWER SUPPLY AND GROUND CIRCUIT . .
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
TIRE PRESSURE WARNING CHECK
SWITCH . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
LOW TIRE PRESSURE WARNING LAMP . ...
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
ECU DIAGNOSIS INFORMATION . . . ..
TPMS CONTROL UNIT . . . . . . . . . .
Reference Value . . . . . . . . . . . . . .
Wiring Diagram - TIRE PRESSURE MONITOR-
ING SYSTEM - . . . . . . . . . . . . . ...
DTC Inspection Priority Chart . . . . . . . . .
DTC Index . . . . . . . . . . . . . . . ..
SYMPTOM DIAGNOSIS . . . . . . . .
TPMS . . . . . . . . . . . . . . . . .
Symptom Table . . . . . . . . . . . . . ..
LOW TIRE PRESSURE WARNING LAMP
DOES NOT TURN ON . . . . . . . . . ...
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
LOW TIRE PRESSURE WARNING LAMP
DOES NOT TURN OFF . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
LOW TIRE PRESSURE WARNING LAMP
BLINKS . . . . . . . . . . . . . . . ..
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
TURN SIGNAL LAMP BLINKS . . . . . . .
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ...
ID REGISTRATION CANNOT BE COMPLET-
ED . . . . . . . . . . . . . . . . . ..
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
NORMAL OPERATING CONDITION . . . .
Description . . . . . . . . . . . . . . . ..
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING . . . . . . .
NVH Troubleshooting Chart . . . . . . . . .
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . . .
Service Notice or Precautions . . . . . . . . .
PREPARATION . . . . . . . . . . ..
PREPARATION . . . . . . . . . . . . .
Special Service Tool . . . . . . . . . . . ...
Commercial Service Tool . . . . . . . . . .
PERIODIC MAINTENANCE . . . . . ...
ROAD WHEEL . . . . . . . . . . . . ...
Adjustment . . . . . . . . . . . . . . . ..
REMOVAL AND INSTALLATION . . . ..
ROAD WHEEL TIRE ASSEMBLY . . . . .
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
TPMS CONTROL UNIT . . . . . . . . . .
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
TRANSMITTER . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
TIRE PRESSURE RECEIVER . . . . . . ...
Exploded View . . . . . . . . . . . . . .
FRONT TIRE PRESSURE RECEIVER . . . . . .
FRONT TIRE PRESSURE RECEIVER : Removal
and Installation . . . . . . . . . . . . . .
REAR TIRE PRESSURE RECEIVER . . . . . ...
REAR TIRE PRESSURE RECEIVER : Removal
and Installation . . . . . . . . . . . . . .
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