2007 INFINITI QX56 lock

BCM (BODY CONTROL MODULE)
BCS-7
< SERVICE INFORMATION >
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CAN Communication System DescriptionINFOID:0000000003533597
Refer to LAN-4.
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch• Turn signal lamp
• Combination meter
Hazard lamp Hazard switch• Turn signal lamp
• Combination meter
Room lamp timer• Key switch
• Remote keyless entry receiver (keyfob)
• Main power window and door lock/unlock switch
• Front door lock assembly LH (key cylinder switch)
• All door switchesInterior room lamp
Key warning chime• Key switch
• Front door switch LHCombination meter (warning buzz-
er)
Light warning chime• Combination switch
• Key switch
• Front door switch LHCombination meter (warning buzz-
er)
Vehicle-speed-sensing intermittent wip-
er• Combination switch
• Combination meterIPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Air conditioner switch signal Front air control ECM
Blower fan switch signal Front air control ECM
Low tire pressure warning system Remote keyless entry receiver• Combination meter
• Display control unit
Trailer tow (if equipped) Combination switch Trailer turn signal relays
Vehicle security system• Remote keyless entry receiver (keyfob)
• Main power window and door lock/unlock switch
• Power window and door lock/unlock switch RH
• Front door lock assembly LH (key cylinder switch)
• All door switches
• Back door latch (door ajar switch)• IPDM E/R
• Security indicator lamp System Input Output

BCM (BODY CONTROL MODULE)
BCS-11
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000003533600
Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
1BR/WIgnition keyhole illumi-
nationOutput OFFDoor is locked (SW OFF) Battery voltage
Door is unlocked (SW ON) 0V
2SBCombination switch
input 5Input ONLighting, turn, wiper OFF
Wiper dial position 4
3G/YCombination switch
input 4Input ONLighting, turn, wiper OFF
Wiper dial position 4
4YCombination switch
input 3Input ONLighting, turn, wiper OFF
Wiper dial position 4
5G/BCombination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6VCombination switch
input 1
9Y/BRear window defogger
switchInput ONRear window defogger switch
ON0V
Rear window defogger switch
OFF5V
10 G Hazard lamp flash Input OFFON (opening or closing) 0V
OFF (other than above) Battery voltage
11 OIgnition switch (ACC
or ON)InputACC or
ONIgnition switch ACC or ON Battery voltage
12 R/L Front door switch RH Input OFFON (open) 0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFFON (open) 0V
OFF (closed) Battery voltage
15 L/WTire pressure warning
check connectorInput OFF — 5V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

BCS-12
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
18 PRemote keyless entry
receiver and optical
sensor (ground)Output OFF — 0V
19 V/WRemote keyless entry
receiver (power sup-
ply)Output OFF Ignition switch OFF
20 G/WRemote keyless entry
receiver signal (Sig-
nal)Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 G NATS antenna amp. InputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
22 W/V BUS — —Ignition switch ON or power
window timer operates
23 G/OSecurity indicator
lampOutput OFFGoes OFF → illuminates (Ev-
ery 2.4 seconds)Battery voltage → 0V
25 BR NATS antenna amp. InputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 Y/LRear wiper auto stop
switch 2Input ONRise up position (rear wiper
arm on stopper)0V
A Position (full clockwise stop
position)0V
Forward sweep (counterclock-
wise direction)Fluctuating
B Position (full counterclock-
wise stop position)Battery voltage
Reverse sweep (clockwise di-
rection)Fluctuating Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
LIIA1893E
LIIA1894E
LIIA1895E
PIIA2344E

BCM (BODY CONTROL MODULE)
BCS-13
< SERVICE INFORMATION >
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27 W/RCompressor ON sig-
nalInput ONA/C switch OFF 5V
A/C switch ON 0V
28 L/R Front blower monitor Input ONFront blower motor OFF Battery voltage
Front blower motor ON 0V
29 W/B Hazard switch Input OFFON 0V
OFF 5V
30 Y/BR Glass hatch switch Input OFFGlass hatch switch released
→ Glass hatch switch pressedBattery voltage → 0V
32 R/GCombination switch
output 5Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 R/YCombination switch
output 4Output ONLighting, turn, wiper OFF
Wiper dial position 4
34 LCombination switch
output 3Output ONLighting, turn, wiper OFF
Wiper dial position 4
35 O/BCombination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 R/WCombination switch
output 1
37 B/RKey switch and key
lock solenoidInput OFFKey inserted Battery voltage
Key removed 0V
38 W/L Ignition switch (ON) Input ON — Battery voltage
39 L CAN-H — — — —
40 P CAN-L — — — —
42 GRGlass hatch ajar
switchInput ONGlass hatch open 0
Glass hatch closed Battery
43 R/BBack door latch (door
ajar switch)Input OFFON (open) 0V
OFF (closed) Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

BCS-14
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
44 ORear wiper auto stop
switch 1Input ONRise up position (rear wiper
arm on stopper)0V
A Position (full clockwise stop
position)Battery voltage
Forward sweep (counterclock-
wise direction)Fluctuating
B Position (full counterclock-
wise stop position)0V
Reverse sweep (clockwise di-
rection)Fluctuating
47 SB Front door switch LH Input OFFON (open) 0V
OFF (closed) Battery voltage
48 R/Y Rear door switch LH Input OFFON (open) 0V
OFF (closed) Battery voltage
49 R Cargo lamp Output OFFAny door open (ON) 0V
All doors closed (OFF) Battery voltage
51 Y/BTrailer turn signal
(right)Output ON Turn right ON
52 G/B Trailer turn signal (left) Output ON Turn left ON
53 L/WGlass hatch lock actu-
atorInput OFFGlass hatch switch released
→ Glass hatch switch pressed0V → Battery voltage for 300
msec.
54 YRear wiper output cir-
cuit 2Input ONRise up position (rear wiper
arm on stopper)0V
A Position (full clockwise stop
position)0V
Forward sweep (counterclock-
wise direction)0V
B Position (full counterclock-
wise stop position)Battery voltage
Reverse sweep (clockwise di-
rection)Battery voltage
55 SBRear wiper output cir-
cuit 1Output ONOFF 0
ON Battery voltage
56 R/G Battery saver output OutputOFF30 minutes after ignition
switch is turned OFF0V
ON — Battery voltage
57 Y/R Battery power supply Input OFF — Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
SKIA3009J
SKIA3009J

BCM (BODY CONTROL MODULE)
BCS-15
< SERVICE INFORMATION >
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BCM Power Supply and Ground Circuit InspectionINFOID:0000000003533601
1.CHECK FUSES AND FUSIBLE LINK
• Check 50A fusible link (letter f, located in the fuse and fusible link box).
• Check 10A fuse [No. 4, located in the fuse block (J/B)] and 15A fuse [No. 22, located in the fuse block (J/B)].
58 W/R Optical sensor Input ONWhen optical sensor is illumi-
nated3.1V or more
When optical sensor is not illu-
minated0.6V or less
59 GFront door lock as-
sembly LH actuator
(unlock)Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
60 G/B Turn signal LH Output ON Turn left ON
61 G/Y Turn signal RH Output ON Turn right ON
62 R/W Step lamp LH and RH Output OFFON (any door open) 0V
OFF (all doors closed) Battery voltage
63 LInterior room/map
lampOutput OFFAny door
switchON (open) 0V
OFF (closed) Battery voltage
65 VAll door lock actuators
(lock)Output OFFOFF (neutral) 0V
ON (lock) Battery voltage
66 G/YFront door lock actua-
tor RH, rear door lock
actuators LH/RH and
back door lock actua-
tor (unlock)Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
67 B Ground Input ON — 0V
68 W/LPower window power
supply (RAP)Output —Ignition switch ON Battery voltage
Within 45 seconds after igni-
tion switch OFFBattery voltage
More than 45 seconds after ig-
nition switch OFF0V
When front door LH or RH is
open or power window timer
operates0V
69 W/RPower window power
supplyOutput — — Battery voltage
70 W/B Battery power supply Input OFF — Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
SKIA3009J
SKIA3009J

BCM (BODY CONTROL MODULE)
BCS-17
< SERVICE INFORMATION >
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CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
ITEMS OF EACH PART
NOTE:
CONSULT-II will only display systems the vehicle possesses.
WORK SUPPORT
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT
MNTRThe results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
System and itemCONSULT-II
displayDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG RE-
SULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERAC-
TIVE
TESTCON-
FIGU-
RATION
BCM BCM×× × × ×
Power door lock system DOOR LOCK×××
Rear defoggerREAR
DEFOGGER××
Warning chime BUZZER××
Room lamp timer INT LAMP×××
Remote keyless entry
systemMULTI REMOTE
ENT×××
Headlamp HEAD LAMP×××
Wiper (front/rear) WIPER×××
Turn signal lamp
Hazard lampFLASHER××
Blower fan switch signal
Air conditioner switch
signalAIR
CONDITIONER×
Combination switch COMB SW×
IVIS (NATS) IMMU××
Interior lamp battery
saverBATTERY SAV-
ER×××
Back door TRUNK××
Theft alarm THEFT ALM×××
Retained accessory
power controlRETAINED PWR×××
Oil pressure switch SIGNAL BUFFER××
Low tire pressure moni-
tor systemAIR PRESSURE
MONITOR×× × ×
Panic alarm PANIC ALARM×

BL-1
BODY
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CONTENTS
BODY, LOCK & SECURITY SYSTEM
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Precaution for work ...................................................3
PREPARATION ...................................................4
Special Service Tool .................................................4
Commercial Service Tool ..........................................4
SQUEAK AND RATTLE TROUBLE DIAGNO-
SIS .......................................................................
5
Work Flow .................................................................5
Generic Squeak and Rattle Troubleshooting ............7
Diagnostic Worksheet ...............................................9
HOOD .................................................................11
Fitting Adjustment ...................................................11
Removal and Installation of Hood Assembly ...........12
Removal and Installation of Hood Lock Control ......13
Hood Lock Control Inspection .................................14
POWER DOOR LOCK SYSTEM ........................15
Component Parts and Harness Connector Loca-
tion ..........................................................................
15
System Description .................................................15
Schematic ...............................................................18
Wiring Diagram - D/LOCK - .....................................19
Terminal and Reference Value for BCM .................23
Work Flow ...............................................................23
CONSULT-II Function (BCM) ..................................24
Trouble Diagnosis Symptom Chart .........................25
BCM Power Supply and Ground Circuit Inspection
....
25
Door Switch Check ..................................................25
Key Switch (Insert) Check .......................................27
Door Lock/Unlock Switch Check .............................28
Glass Hatch Switch Circuit Inspection ....................30
Front Door Lock Assembly LH (Actuator) Check ....32
Front Door Lock Actuator RH Check .......................32
Rear Door Lock Actuator RH/LH Check ..................33
Glass Hatch Lock Actuator Check ...........................34
Front Door Lock Assembly LH (Key Cylinder
Switch) Check ..........................................................
35
REMOTE KEYLESS ENTRY SYSTEM .............37
Component Parts and Harness Connector Loca-
tion ...........................................................................
37
System Description ..................................................37
CAN Communication System Description ...............40
Schematic ................................................................41
Wiring Diagram - KEYLES - ....................................42
Terminal and Reference Value for BCM ..................44
Terminal and Reference Value for IPDM E/R ..........44
CONSULT-II Function (BCM) ..................................45
CONSULT-II Start Procedure ..................................45
CONSULT-II Application Item ..................................45
Trouble Diagnosis Procedure ..................................47
BCM Power Supply and Ground Circuit Inspection
....
47
Trouble Diagnosis ....................................................47
Key Switch (Insert) Check .......................................49
Door Switch Check ..................................................49
Keyfob Battery and Function Check ........................52
Remote Keyless Entry Receiver System Inspec-
tion ...........................................................................
53
ACC Power Check ...................................................54
IPDM E/R Operation Check .....................................54
Check Hazard Function ...........................................55
Check Horn Function ...............................................55
Check Headlamp Function ......................................55
Check Map Lamp Illumination Function ..................56
ID Code Entry Procedure ........................................56
Keyfob Battery Replacement ...................................59
VEHICLE SECURITY (THEFT WARNING)
SYSTEM ............................................................
60
Component Parts and Harness Connector Loca-
tion ...........................................................................
60
System Description ..................................................61