2010 INFINITI QX56 wiring diagram

WCS
KEY SWITCH SIGNAL CIRCUITWCS-21
< COMPONENT DIAGNOSIS >
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KEY SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000005146162
Transmits a key switch signal to the BCM.
Component Function CheckINFOID:0000000005146163
1.CHECK BCM INPUT SIGNAL
Select “DATA MONITOR” for “BCM” and c heck the “KEY ON SW” monitor value.
>> Inspection End.
Diagnosis ProcedureINFOID:0000000005146164
Regarding Wiring Diagram information, refer to WCS-23, "Wiring Diagram".
1.CHECK FUSE
Check if the key switch and ignition knob switch 10A fuse (No. 62, located in the fuse and relay box) is blown.
Is the fuse blown?
YES >> Be sure to repair the cause of malfunction before installing new fuse.
NO >> GO TO 2
2.CHECK BCM INPUT SIGNAL
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> GO TO 3
3.CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM and key switch and ignition knob switch con- nectors.
2. Check continuity between BCM harness connector M18 and key
switch and ignition knob switch harness connector M12.
3. Check continuity between BCM harness connector M18 and ground.KEY ON SW
When key is inserted into key cylinder : ON
When key is removed from key cylinder : OFF
Te r m i n a l s
ConditionVo l ta g e
(Approx.)
(+)
(−)
BCM
connector Te r m i n a l
M18 37 Ground Key is inserted Battery voltage
Key is removed 0
PKIC0721E
AB
Continuity
Connector Terminal Connector Terminal
M18 37M12 4 Yes
AWNIA0159ZZ
Revision: April 20092010 QX56

WCS
WARNING CHIME SYSTEMWCS-23
< COMPONENT DIAGNOSIS >
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WARNING CHIME SYSTEM
Wiring DiagramINFOID:0000000005146166
ABNWA0418GB
Revision: April 20092010 QX56

WCS-30
< ECU DIAGNOSIS >
COMBINATION METER
Wiring Diagram
INFOID:0000000005382409
ABNWA0408GB
Revision: April 20092010 QX56

WCS
BCM (BODY CONTROL MODULE)WCS-59
< ECU DIAGNOSIS >
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Wiring DiagramINFOID:0000000005382426
ABMWA0374GB
Revision: April 20092010 QX56

WT-1
SUSPENSION
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SECTION WT
A
B
WT
N
O PCONTENTS
ROAD WHEELS & TIRES
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Repair Work Flow ................................................ ......3
INSPECTION AND ADJUSTMENT .....................5
Preliminary Check ............................................... ......5
Transmitter Wake Up Operation ...............................5
ID Registration Procedure .........................................6
FUNCTION DIAGNOSIS ...............................8
TPMS .............................................................. .....8
System Diagram .................................................. ......8
System Description ...................................................8
System Component .................................................10
DIAGNOSIS SYSTEM (BCM) ............................11
CONSULT-III Function (BCM) ............................. ....11
Self-Diagnosis (Without CONSULT-III) ...................12
COMPONENT DIAGNOSIS .........................14
C1708 - C1711 DATA FROM TRANSMITTER
NOT BEING RECEIVED ................................. ....
14
Description .......................................................... ....14
DTC Logic ...............................................................14
Diagnosis Procedure ...............................................14
Special Repair Requirement ...................................15
C1712 - C1715, C1720 - C1723, C1724 -
C1727 TRANSMITTER MALFUNCTION ....... ....
16
Description .......................................................... ....16
DTC Logic ...............................................................16
Diagnosis Procedure ...............................................16
Special Repair Requirement ...................................17
C1716 - C1719 TRANSMITTER PRESSURE
MALFUNCTION .............................................. ....
18
Description .......................................................... ....18
DTC Logic ...............................................................18
Diagnosis Procedure ...............................................18
Special Repair Requirement ................................ ....18
C1729 VEHICLE SPEED SIGNAL ....................19
Description ...............................................................19
DTC Logic ................................................................19
Diagnosis Procedure ...............................................19
Special Repair Requirement ....................................19
C1735 IGNITION SIGNAL .................................20
Description ...............................................................20
DTC Logic ................................................................20
Diagnosis Procedure ...............................................20
Special Repair Requirement ....................................20
ECU DIAGNOSIS .........................................21
BCM (BODY CONTROL MODULE) .................21
Reference Value .................................................. ....21
Terminal Layout .......................................................24
Physical Values ................................................... ....24
Wiring Diagram - TIRE PRESSURE MONITOR-
ING SYSTEM - ........................................................
30
Self-Diagnosis (With CONSULT-III) .................... ....33
Self-Diagnosis (Without CONSULT-III) ...................34
SYMPTOM DIAGNOSIS ..............................36
TPMS .................................................................36
Symptom Table ................................................... ....36
LOW TIRE PRESSURE WARNING LAMP
DOES NOT TURN ON .......................................
37
Low Tire Pressure Warning Lamp Does Not Come
On When Ignition Switch Is Turned On ...................
37
LOW TIRE PRESSURE WARNING LAMP
STAYS ON ........................................................
38
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On ............................... ....
38
LOW TIRE PRESSURE WARNING LAMP
BLINKS .............................................................
39
Revision: April 20092010 QX56

WT-30
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
Wiring Diagram - TIRE PRESSU RE MONITORING SYSTEM -
INFOID:0000000005148231
ABEWA0027GB
Revision: April 20092010 QX56

LOW TIRE PRESSURE WARNING LAMP BLINKSWT-39
< SYMPTOM DIAGNOSIS >
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WT
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LOW TIRE PRESSURE WA RNING LAMP BLINKS
Low Tire Pressure Warning Lamp Flas hes When Ignition Switch Is Turned On
INFOID:0000000005148237
Regarding Wiring Diagram information, refer to WT-30, "Wiring Diagram - TIRE PRESSURE MONITORING
SYSTEM -".
NOTE:
If low tire pressure warning lamp fl ashes as shown, the system is normal.
Flash Mode A
• This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to WT-5, "
Transmit-
ter Wake Up Operation".
1.CHECK BCM CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors.
3. Check terminals for damage or loose connections.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace damaged parts.
2.CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM harness connector M18 terminal 15
and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-59, "Removal and Installa-
tion".
NO >> Repair circuit for short to ground.
SEIA0347E
Continuity should not exist.
ALEIA0014ZZ
Revision: April 20092010 QX56

WW-1
DRIVER CONTROLS
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SECTION WW
A
B
WW
N
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CONTENTS
WIPER & WASHER
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
FUNCTION DIAGNOSIS ...............................4
FRONT WIPER AND WASHER SYSTEM ..... .....4
System Diagram .................................................. ......4
System Description ...................................................4
Component Parts Location ........................................7
Component Description ............................................7
REAR WIPER AND WASHER SYSTEM ............8
System Diagram .................................................. ......8
System Description ...................................................8
Component Parts Location ......................................10
Component Description ..........................................10
DIAGNOSIS SYSTEM (BCM) ............................11
COMMON ITEM ..................................................... ....11
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
11
WIPER ................................................................... ....11
WIPER : CONSULT-III Function (BCM - WIPER) ....12
DIAGNOSIS SYSTEM (IPDM E/R) .....................13
Diagnosis Description ......................................... ....13
CONSULT - III Function (IPDM E/R) .......................15
COMPONENT DIAGNOSIS .........................18
WIPER AND WASHER FUSE ........................ ....18
Description .......................................................... ....18
Diagnosis Procedure ...............................................18
FRONT WIPER MOTOR LO CIRCUIT ...............19
Component Function Check ................................ ....19
Diagnosis Procedure ...............................................19
FRONT WIPER MOTOR HI CIRCUIT ................21
Component Function Check ................................ ....21
Diagnosis Procedure ...............................................21
FRONT WIPER AUTO STOP SIGNAL CIR-
CUIT ..................................................................
23
Component Function Check ....................................23
Diagnosis Procedure ...............................................23
FRONT WIPER MOTOR GROUND CIRCUIT ...25
Diagnosis Procedure ...............................................25
WASHER SWITCH ............................................26
Description ...............................................................26
Component Inspection .............................................26
REAR WIPER MOTOR CIRCUIT ......................28
Component Function Check ....................................28
Diagnosis Procedure ...............................................28
REAR WIPER AUTO STOP SIGNAL CIRCUIT
...
30
Component Function Check ................................ ....30
Diagnosis Procedure ...............................................30
FRONT WIPER AND WASHER SYSTEM ........31
Wiring Diagram ........................................................31
REAR WIPER AND WASHER SYSTEM ..........35
Wiring Diagram ........................................................35
ECU DIAGNOSIS .........................................41
BCM (BODY CONTROL MODULE) .................41
Reference Value .................................................. ....41
Terminal Layout .......................................................44
Physical Values ................................................... ....44
Wiring Diagram ........................................................50
Fail Safe ..................................................................54
DTC Inspection Priority Chart ...............................55
DTC Index ...............................................................55
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ................
57
Revision: April 20092010 QX56