INFINITI QX56 2007 Factory Service Manual

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

BCS-16
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• Check 10A fuse (No. 59, located in the fuse and relay box).
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connectors and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace the harness.
3.CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
CONSULT-II Function (BCM)INFOID:0000000003533602
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
ConnectorTe r m i n a l s
Power
sourceConditionVoltage (V) (Ap-
prox.)
(+) (-)
M1811 GroundACC
power
supplyIgnition
switch
ACC or
ONBattery voltage
38 GroundIgnition
power
supplyIgnition
switch ON
or STARTBattery voltage
M2057 GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
70 GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
LIIA2415E
67 - Ground : Continuity should exist.
LIIA0915E

BCM (BODY CONTROL MODULE)
BCS-17
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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×

BCS-18
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
Display Item List
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)INFOID:0000000003533603
1.SELF-DIAGNOSTIC RESULT CHECK
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect to CONSULT–II, and select “BCM” on “SELECT SYSTEM” screen.
2. Select “BCM” on “SELECT TEST ITEM” screen, and select “SELF-DIAG RESULTS”.
3. Check display content in self-diagnostic results.
Contents displayed
No malfunction>>Inspection End.
Malfunction in CAN communication system>>After printing the monitor items, go to LAN-7
.
ConfigurationINFOID:0000000003533604
DESCRIPTION
CONFIGURATION has two functions as follows:
• READ CONFIGURATION is the function to confirm vehicle configuration of current BCM.
• WRITE CONFIGURATION is the function to write vehicle configuration on BCM.
CAUTION:
• When replacing BCM, you must perform WRITE CONFIGURATION with CONSULT-II.
• Complete the procedure of WRITE CONFIGURATION in order.
• If you set incorrect WRITE CONFIGURATION, incidents will occur.
• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.
READ CONFIGURATION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector and turn ignition switch ON.
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
CONSULT-II display code Diagnosis item
U1000INITIAL DIAG
TRANSMIT DIAG
ECM
IPDM E/R
METER/M&A
I-KEY
PAIA0070E

BCM (BODY CONTROL MODULE)
BCS-19
< SERVICE INFORMATION >
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2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If "BCM" is not indicated, go to GI-38, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
4. Touch “BCM” on “SELECT TEST ITEM” screen.
5. Touch “CONFIGURATION” on “SELECT DIAG MODE” screen.
BCIA0029E
BCIA0030E
LKIA0183E
BCIA0031E

BCS-20
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
6. Touch “JA60” and "OK" on “VEHICLE SELECT” screen. For
canceling, touch "CANCEL" on "VEHICLE SELECT" screen.
NOTE:
Confirm vehicle model. Refer to GI-46, "
Model Variation" in GI
section.
7. Touch “READ CONFIGURATION” on “SELECT CONFIG ITEM”
screen.
8. Configuration of current BCM is printed out automatically. A list-
ing of manual setting items and auto setting items will be dis-
played. Auto setting items are preset and cannot be changed.
Manual setting items can be set by using WRITE CONFIGURA-
TION PROCEDURE. Refer to "WRITE CONFIGURATION PRO-
CEDURE" .
9. Touch “BACK” on “READ CONFIGURATION” screen.
LKIA0606E
LKIA0547E
LKIA0504E
LKIA0395E

BCM (BODY CONTROL MODULE)
BCS-21
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WRITE CONFIGURATION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector and turn ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If "BCM" is not indicated, go to GI-38, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
4. Touch “BCM” on “SELECT TEST ITEM” screen.
PAIA0070E
BCIA0029E
BCIA0030E
LKIA0183E

BCS-22
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
5. Touch “CONFIGURATION” on “SELECT DIAG MODE” screen.
6. Touch “JA60” and "OK" on “VEHICLE SELECT” screen. For
canceling, touch "CANCEL" on "VEHICLE SELECT" screen.
NOTE:
Confirm vehicle model. Refer to GI-46, "
Model Variation" in GI
section.
7. Touch “WRITE CONFIGURATION” on “SELECT CONFIG
ITEM” screen.
8. Touch "YES”.
For canceling, touch "NO".
9. Touch “WITH” or "WITHOUT" on "WRITE CONFIGURATION" screen based on the following ITEM LIST.
• Depending on CONSULT-II software version being used, some or all of the write configuration items
shown in the following configuration lists may be displayed. If an item does not appear on the CON-
SULT-II "WRITE CONFIGURATION" screen(s), then it is an auto setting item and it cannot be manually
set or changed.
NOTE:
BCIA0031E
LKIA0606E
LKIA0547E
LKIA0175E
ITEM SET VAL
DTRL WITH ⇔ WITHOUT
SPEED SNS WIP WITH ⇔ WITHOUT

BCM (BODY CONTROL MODULE)
BCS-23
< SERVICE INFORMATION >
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Confirm vehicle model. Refer to GI-46, "Model Variation" in GI section.
10. Touch "CHNG SETTING" on "WRITE CONFIGURATION" screen.
CAUTION:
Make sure to touch "CHNG SETTING" even if the indicated configuration of new BCM is same as
the desirable configuration.
If not, configuration which is set automatically by selecting vehicle model cannot be memorized.
11. Touch “OK” on "WRITE CONFIGURATION" screen.
If "CANCEL" is touched, it will return to previous screen.
12. Wait until the next screen during setting.
13. WRITE CONFIGURATION results are printed out automatically.
Confirm "WRITE CONFIGURATION" is correctly executed by
comparing sheet automatically printed out with applicable con-
figuration list shown in step 9.
LKIA0397E
LKIA0398E
LKIA0509E