2011 INFINITI QX56 diagram

WCS-34
< WIRING DIAGRAM >
WARNING CHIME SYSTEM
JCNWM4808GB
Revision: 2010 May2011 QX56

WCS
WARNING CHIME SYSTEMWCS-35
< WIRING DIAGRAM >
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JCNWM4809GB
Revision: 2010 May2011 QX56

WCS-36
< WIRING DIAGRAM >
WARNING CHIME SYSTEM
JCNWM4810GB
Revision: 2010 May2011 QX56

WT-1
SUSPENSION
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SECTION WT
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O PCONTENTS
ROAD WHEELS & TIRES
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
3
Service Notice or Precautions for TPMS ...................4
Service Notice or Precautions for Road Wheel .........4
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tools .......................................... ......5
Commercial Service Tools ........................................5
SYSTEM DESCRIPTION ..............................6
COMPONENT PARTS ................................... .....6
Component Parts Location .................................. ......6
Component Description .............................................7
Low Tire Pressure Warning Control Unit ...................7
Transmitter ................................................................7
Tire Pressure Receiver .............................................8
Low Tire Pressure Warning Lamp .............................8
SYSTEM ..............................................................9
System Description ............................................. ......9
Tire Inflation Indicator Function ...............................10
DIAGNOSIS SYSTEM (LOW TIRE PRES-
SURE WARNING CONTROL UNIT) ..................
12
CONSULT-III Function ........................................ ....12
ECU DIAGNOSIS INFORMATION ..............14
LOW TIRE PRESSURE WARNING CON-
TROL UNIT ..................................................... ....
14
Reference Value ................................................. ....14
DTC Inspection Priority Chart .................................17
DTC Index ...............................................................18
WIRING DIAGRAM ......................................19
TIRE PRESSURE MONITORING SYSTEM ......19
Wiring Diagram .................................................... ....19
BASIC INSPECTION ...................................25
DIAGNOSIS AND REPAIR WORK FLOW .......25
Work Flow ............................................................ ....25
ADDITIONAL SERVICE WHEN REPLACING
LOW TIRE PRESSURE WARNING CON-
TROL UNIT ........................................................
27
Description ...............................................................27
Work Procedure .......................................................27
TRANSMITTER WAKE UP OPERATION .........28
Description ...............................................................28
Work Procedure .......................................................28
ID REGISTRATION ...........................................29
Description ...............................................................29
Work Procedure .......................................................29
DTC/CIRCUIT DIAGNOSIS .........................31
C1704, C1705, C1706, C1707 LOW TIRE
PRESSURE .......................................................
31
DTC Logic ............................................................ ....31
Diagnosis Procedure ...............................................31
C1708, C1709, C1710, C1711 TRANSMITTER
(NO DATA) ........................................................
33
DTC Logic ............................................................ ....33
Diagnosis Procedure ...............................................33
C1716, C1717, C1718, C1719 TRANSMITTER
(PRESSURE DATA) ..........................................
37
DTC Logic ............................................................ ....37
Diagnosis Procedure ...............................................37
C1728 RECEIVER ID ........................................39
Revision: 2010 May2011 QX56

SYSTEMWT-9
< SYSTEM DESCRIPTION >
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SYSTEM
System DescriptionINFOID:0000000006225494
 During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from transmitter
installed in each wheel. The low tire pressure warning control unit has pressure judgment and trouble diag-
nosis functions. When the low tire pressure warning control unit detects low inflation pressure or another
unusual symptom, the low tire pressure warning lamps in the combination meter comes on.
 If the tire pressure is less than the specified value, t he low tire pressure warning lamp illuminates that the tire
pressure is less than the specified value.
 Activates the TPMS (Tire Pressure Monitoring Sy stem) when the vehicle speed is 40 km/h (25 MPH) or
more.
 The tire pressure information for each wheel is displayed on the vehicle information display.
 Added tire inflation indicator function to TPMS (Tire Pressure Monitoring System). Refer to WT-10, "
Tire
Inflation Indicator Function".
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL
The signal transmission/reception between units via a comm unication line is mainly as listed in the following
table.
JPEIC0084GB
Component parts Signal item
Low tire pressure warning control
unit Transmits the following signals via CAN communication to BCM.
 Low tire pressure
warning lamp signal
 Hazard request signal
 Horn request signal*
Transmits the following signals via CAN communication to the AV control unit.
 Low tire pressure warning lamp signal
 Tire pressure data signal
BCM Transmits the following signal via CAN communication to the combination meter, based on sig-
nals from low tire pressure warning control unit.
 Low tire pressure
warning lamp signal
Transmits the following signal via CAN communication to the IPDM E/R, based on signals from
low tire pressure wa rning control unit.
 Horn request signal*
Receives the following signal via CAN communication from low tire pressure warning control
unit.
 Hazard request signal
AV control unit Receives the following signals via CAN communication from low tire pressure warning control
unit.
 Low tire pressure
warning lamp signal
 Tire pressure data signal
Revision: 2010 May2011 QX56

TIRE PRESSURE MONITORING SYSTEMWT-19
< WIRING DIAGRAM >
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WIRING DIAGRAM
TIRE PRESSURE MO NITORING SYSTEM
Wiring DiagramINFOID:0000000006225500
JCEWM0214GB
Revision: 2010 May2011 QX56

WT-20
< WIRING DIAGRAM >
TIRE PRESSURE MONITORING SYSTEM
JCEWM0215GB
Revision: 2010 May2011 QX56

TIRE PRESSURE MONITORING SYSTEMWT-21
< WIRING DIAGRAM >
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WT
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JCEWM0216GB
Revision: 2010 May2011 QX56