Infiniti G37 Coupe. Manual — part 1407
WCS-100
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001696931
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 AIRBAG” 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 AIRBAG”.
• 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.
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SUSPENSION
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CONTENTS
ROAD WHEELS & TIRES
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Repair Work Flow . . . . . . . . . . . . . ..
INSPECTION AND ADJUSTMENT . . . . . .
TRANSMITTER WAKE UP OPERATION . . . . ...
TRANSMITTER WAKE UP OPERATION : De-
scription . . . . . . . . . . . . . . . . .....
TRANSMITTER WAKE UP OPERATION : Spe-
cial Repair Requirement . . . . . . . . . . ....
ID REGISTRATION PROCEDURE . . . . . . . ..
ID REGISTRATION PROCEDURE : Description . ..
ID REGISTRATION PROCEDURE : Special Re-
pair Requirement . . . . . . . . . . . . . ...
FUNCTION DIAGNOSIS . . . . . . . ...
TPMS . . . . . . . . . . . . . . . . ...
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
DIAGNOSIS SYSTEM (BCM) . . . . . . .
COMMON ITEM . . . . . . . . . . . . . . .
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) . . . . . . . . . . . . . .
AIR PRESSURE MONITOR . . . . . . . . . ..
AIR PRESSURE MONITOR : Diagnosis Descrip-
tion . . . . . . . . . . . . . . . . . . ..
AIR PRESSURE MONITOR : CONSULT-III Func-
tion (BCM - AIR PRESSURE MONITOR) . . . ...
COMPONENT 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 . . . . . . . . .
C1712, C1713, C1714, C1715 TRANSMITTER
(CHECKSUM) . . . . . . . . . . . . .
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
(CODE) . . . . . . . . . . . . . . . ..
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Special Repair Requirement . . . . . . . . .
C1724, C1725, C1726, C1727 TRANSMITTER
(BATT VOLT) . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Special Repair Requirement . . . . . . . . .
C1729 VEHICLE SPEED SIG ERR . . . . ...
WT-2
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
Special Repair Requirement . . . . . . . . ...
C1734 CONTROL UNIT . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
Special Repair Requirement . . . . . . . . ...
POWER SUPPLY AND GROUND CIRCUIT . .
BCM (BODY CONTROL MODULE) . . . . . . .
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure . . . . . . . . . . . . . . . ...
BCM (BODY CONTROL MODULE) : Special Re-
pair Requirement . . . . . . . . . . . . ....
UNIFIED METER AND A/C AMP. . . . . . . . .
UNIFIED METER AND A/C AMP. : Description . .
UNIFIED METER AND A/C AMP. : Diagnosis Pro-
cedure . . . . . . . . . . . . . . . . . .
TPMS . . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
Wiring Diagram - TIRE PRESSURE MONITOR-
ING SYSTEM - . . . . . . . . . . . . . ...
TIRE PRESSURE RECEIVER . . . . . . ...
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
TIRE PRESSURE WARNING CHECK
SWITCH . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
ECU DIAGNOSIS . . . . . . . . . .
BCM (BODY CONTROL MODULE) . . . . ..
Reference Value . . . . . . . . . . . . . .
Wiring Diagram - BCM - . . . . . . . . . . .
Fail Safe . . . . . . . . . . . . . . . . .
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
STAYS ON . . . . . . . . . . . . . . .
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 Tools . . . . . . . . . . . .
Commercial Service Tools . . . . . . . . . ..
ON-VEHICLE MAINTENANCE . . . . ..
ROAD WHEEL . . . . . . . . . . . . ...
Inspection . . . . . . . . . . . . . . . .
ON-VEHICLE REPAIR . . . . . . . ...
ROAD WHEEL TIRE ASSEMBLY . . . . .
Adjustment . . . . . . . . . . . . . . . ..
REMOVAL AND INSTALLATION . . . ..
TRANSMITTER . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Road Wheel . . . . . . . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW
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< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Repair Work Flow
INFOID:0000000001686943
DETAILED FLOW
1.
VERIFY COSTOMER COMPLAINTS
Interview the customer to obtain detailed information about the symptom.
>> GO TO 2.
2.
DETERMINE REFERENCE ITEM RELATED TO SYMPTOM
Check the symptom on the vehicle from the information obtained.
(cruise test, warning lamp illumination or blinking, etc.)
Is the symptom confirmed?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
PRELIMINARY INSPECTION
1.
Perform basic inspection.
2.
Check all tire pressures. Refer to
3.
Check the low tire pressure warning lamp for illumination or blinking. Refer to
Is the malfunction corrected?
YES
>> INSPECTION END
NO
>> GO TO 4.
4.
PERFORM SELF-DIAGNOSIS
1.
Perform self-diagnosis. Record any DTCs and data displayed on CONSULT-III.
2.
Perform inspection according to the displayed DTC. Refer to
Is the causal factor identified from DTC?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK SYMPTOM
Perform troubleshooting by symptom. Refer to
Is the causal factor identified?
YES
>> GO TO 6.
NO
>> GO TO 4.
6.
REPAIR OR REPLACE MULFUNCTIONING PARTS
Repair or replace the applicable part.
>> GO TO 7.
7.
CHECK SELF-DIAGNOSIS RESULT
1.
WT-11, "AIR PRESSURE MONITOR : Diagnosis Description"
.
2.
Perform self-diagnosis again.
Is any DTC displayed?
YES
>> GO TO 4.
NO
>> GO TO 8.
8.
FINAL CHECK
1.
Perform a cruise test.
2.
Check the warning lamp for illumination or blinking.
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