2007 INFINITI QX56 display

LT-116
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M20 terminal
63 and front room/map lamp assembly harness connector R102
terminal 1.
OK or NG
OK >> Replace BCM if interior lamp does not work after setting
the connector again. Refer to BCS-24, "
BCM" .
NG >> Repair harness or connector.
5.CHECK INTERIOR ROOM LAMP CIRCUIT
1. Disconnect BCM connector and interior room lamp connector.
2. Check continuity between BCM harness connector M20 terminal
56 and front room/map lamp assembly harness connector R102
terminal 6.
OK or NG
OK >> Replace BCM if interior lamp does not work after setting
the connector again. Refer to BCS-24, "
BCM" .
NG >> Repair harness or connector between BCM and room/
map lamp.
Personal Lamp Control Does Not Operate (Room/Map Lamps Operate)INFOID:0000000003533464
1.CHECK EACH DOOR SWITCH
Select "BCM" on CONSULT-II. With "INT LAMP" data monitor, make
sure switches listed in display item list turn ON-OFF linked with
switch operation. Refer to LT-101, "
System Description" for switches
and their function.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning door switch.
2.CHECK PERSONAL LAMP OUTPUT
1. Turn ignition switch OFF.
2. Confirm lamp switch is in the DOOR position.
3. Disconnect personal lamp connector.
4. Open any door.
5. Check voltage between personal lamp harness connector termi-
nal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK PERSONAL LAMP CONTROL CIRCUIT63 - 1 : Continuity should exist.
WKIA1480E
56 - 6 : Continuity should exist.
WKIA1481E
SKIA5930E
3 - Ground : Battery voltage should exist.
WKIA1482E

INTERIOR ROOM LAMP
LT-117
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
LT
N
O
P
1. Disconnect front room/map lamp assembly connector.
2. Check continuity between front room/map lamp assembly har-
ness connector R102 terminal 2 and personal lamp harness
connector terminal 1.
OK or NG
OK >> Replace personal lamp.
NG >> Repair harness or connector.
All Step/Foot/Puddle Lamps Do Not OperateINFOID:0000000003533465
1.CHECK EACH DOOR SWITCH
Select "BCM" on CONSULT-II. With "INT LAMP" data monitor, make
sure switches listed in display item list turn ON-OFF linked with
switch operation. Refer to LT-114, "
CONSULT-II Function (BCM)" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.CHECK STEP LAMP POWER SUPPLY
1. Turn ignition switch OFF.
2. Check voltage between front step lamp LH harness connector
D11 terminal + and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK STEP LAMP CONTROL CIRCUIT
1. Disconnect BCM connector and front step lamp LH connector.
2. Check continuity between BCM harness connector M20 terminal
62 and front step lamp LH harness connector D11 terminal –.
OK or NG
OK >> Replace BCM if front step lamp does not work after set-
ting the connector again. Refer to BCS-24, "
BCM" .
NG >> Repair harness or connector.
4.CHECK STEP LAMP CIRCUIT2 - 1 : Continuity should exist.
WKIA1908E
SKIA5930E
+ - Ground : Battery voltage should exist.
LKIA0306E
– - 62 : Continuity should exist.
WKIA1484E

LT-118
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
1. Disconnect BCM connector and front step lamp LH connector.
2. Check continuity between BCM harness connector M20 terminal
56 and front step lamp LH harness connector D11 terminal +.
OK or NG
OK >> Replace BCM if front step lamp does not work after set-
ting the connector again. Refer to BCS-24, "
BCM" .
NG >> Repair harness or connector.
All Interior Room Lamps Do Not OperateINFOID:0000000003533466
1.CHECK POWER SUPPLY CIRCUIT
1. All interior room lamp switches are OFF.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M20 terminal
56 and ground.
OK or NG
OK >> Repair harness or connector. To prevent making a short
circuit, be sure to disconnect battery negative cable after
repairing harness, and then reconnect.
NG >> Replace BCM. Refer to BCS-24, "
BCM" .
Ignition Keyhole Illumination Control Does Not OperateINFOID:0000000003533467
1.CHECK EACH SWITCH
Select "BCM" on CONSULT-II. With "INT LAMP" data monitor, make
sure switches listed in display item list turn ON-OFF linked with
switch operation. Refer to LT-114, "
CONSULT-II Function (BCM)" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.ACTIVE TEST
1. Select "BCM" on CONSULT-II. Select "INT LAMP".
2. Select "IGN ILLUM" active test to make sure lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-24, "BCM".
NG >> GO TO 3.
3.CHECK IGNITION KEYHOLE ILLUMINATION INPUT+ - 56 : Continuity should exist.
WKIA1485E
56 - Ground : Battery voltage should exist.
WKIA1486E
SKIA5930E
Ignition keyhole illumination should turn ON.
SKIA3992E

ILLUMINATION
LT-121
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
LT
N
O
P
• to BCM terminal 38, and
• through 10A fuse [No. 14, located in the fuse block (J/B)]
• to combination meter terminal 24.
Ground is supplied
• to BCM terminal 67
• to combination meter terminal 17
• through grounds M57, M61 and M79, and
• to IPDM E/R terminals 38 and 59
• through grounds E9, E15 and E24.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil, which, when
energized, directs power
• through 10A fuse (No. 36, located in the IPDM E/R)
• through IPDM E/R terminal 49
• to illumination control switch terminal 1
• to power liftgate switch terminal 3
• to front room/map lamp assembly (console box illumination) terminal 7
• to hazard switch terminal 3
• to rear sonar system OFF switch terminal 3
• to glove box lamp terminal 1
• to door mirror remote control switch terminal 16
• to display control unit terminal 14
• to power window and door lock/unlock switch RH terminal 5 (early production)
• to main power window and door lock/unlock switch LH terminal 16 (early production)
• to 4WD shift switch terminal 7 (with 4-wheel drive)
• to front air control terminal 23
• to rear power vent window switch terminal 5
• to DVD player terminal 12 (with DVD entertainment system)
• to NAVI control unit terminal 61
• to pedal adjusting switch terminal 5
• to electric brake (pre-wiring) terminal 4 (with trailer tow)
• to front and rear heated seat switch LH and RH terminal 5
• to A/T device terminal 11
• to VDC OFF switch terminal 3
• to tow mode switch terminal 3
• to headlamp aiming switch terminal 3
• to clock terminal 3, and
• through 10A fuse (No. 37, located in the IPDM E/R)
• through IPDM E/R terminal 57
• to AV switch terminal 3
• to audio unit terminal 8
• to rear air control terminal 1 and
• to rear audio remote control unit terminal 6.
The illumination control switch controls illumination intensity by varying the ground to the following
• through illumination control switch terminal 2
• to power liftgate switch terminal 4
• to front room/map lamp assembly (console box illumination) terminal 8
• to AV switch terminal 4
• to hazard switch terminal 4
• to audio unit terminal 7
• to rear sonar system OFF switch terminal 4
• to power window and door lock/unlock switch RH terminal 1 (early production)
• to main power window and door lock/unlock switch LH terminal 12 (early production)
• to 4WD switch terminal 8 (with 4-wheel drive)
• to front air control terminal 24
• to rear power vent window switch terminal 6
• to DVD player terminal 10 (with DVD entertainment system)
• to pedal adjusting switch terminal 6
• to A/T device terminal 12

LT-122
< SERVICE INFORMATION >
ILLUMINATION
• to front heated seat switch LH and RH terminal 6
• to VDC OFF switch terminal 4
• to tow mode switch terminal 4
• to headlamp aiming switch terminal 4
• to clock terminal 4 and
• to combination meter terminal 18.
Ground is supplied
• to illumination control switch terminal 3
• to glove box lamp terminal 2
• to door mirror remote control switch terminal 15
• to display control unit terminal 3
• to rear heated seat switches terminal 6
• to electric brake (pre-wiring) terminal 1 (with trailer tow)
• to combination meter terminal 17
• through grounds M57, M61 and M79, and
• to NAVI control unit terminal 1
• to rear air control terminal 3
• to rear audio remote control unit terminal 15
• through grounds B117 and B132.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, the illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionINFOID:0000000003533470
Refer to LAN-4, "CAN Communication System" .

PG-18
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status automatically based on each operating condition.
1. CAN communication status
• CAN communication is normally performed with other control units.
• Individual unit control by IPDM E/R is normally performed.
• When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status
• Process to stop CAN communication is activated.
• All systems controlled by IPDM E/R are stopped. When 1 second has elapsed after CAN communica-
tion with other control units is stopped, mode switches to sleep status.
3. Sleep status
• IPDM E/R operates in low current-consumption mode.
• CAN communication is stopped.
• When a change in CAN communication signal is detected, mode switches to CAN communication sta-
tus.
• When a change in ignition switch signal is detected, mode switches to CAN communication status.
CAN Communication System DescriptionINFOID:0000000003533836
Refer to LAN-4.
Function of Detecting Ignition Relay MalfunctionINFOID:0000000003533837
• When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM E/
R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
• When the state of the integrated ignition relay does not agree with the state of the ignition switch signal
received via CAN communication, the IPDM E/R activates the tail lamp relay.
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
CONSULT-II Function (IPDM E/R)INFOID:0000000003533838
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II Start Procedure
Refer to GI-36, "CONSULT-II Start Procedure".
SELF-DIAGNOSTIC RESULTS
Display Item List
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)
IPDM E/R diagnostic Mode Description
SELF-DIAG RESULTS Displays IPDM E/R self-diagnosis results.
DATA MONITOR Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-19
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
PG
N
O
P
NOTE:
The details for display of the period are as follows:
• CRNT: Error currently detected with IPDM E/R.
• PAST: Error detected in the past and placed in IPDM E/R memory.
DATA MONITOR
All Signals, Main Signals, Selection From Menu
Display itemsCONSULT-II
display codeMalfunction detectionTIME
Possible causes
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—————
CAN COMM CIRC U1000• If CAN communication reception/transmission
data has a malfunction, or if any of the control
units fail, data reception/transmission cannot
be confirmed.
• When the data in CAN communication is not
received before the specified time.XXAny of items listed be-
low have errors:
• TRANSMIT DIAG
•ECM
•BCM/SEC
ALL SIGNALS All signals will be monitored.
MAIN SIGNALS Monitors the predetermined item(s).
SELECTION FROM MENU Selects and monitors individual signal(s).
Item nameCONSULT-II
screen displayDisplay or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Motor fan requestMOTOR FAN
REQ1/2/3/4 X X X Signal status input from ECM
Compressor re-
questAC COMP REQ ON/OFF X X X Signal status input from ECM
Parking, license,
and tail lamp re-
questTAIL & CLR REQ ON/OFF X X X Signal status input from BCM
Headlamp low
beam requestHL LO REQ ON/OFF X X X Signal status input from BCM
Headlamp high
beam requestHL HI REQ ON/OFF X X X Signal status input from BCM
Front fog request FR FOG REQ ON/OFF X X X Signal status input from BCM
Front wiper re-
questFR WIP REQSTOP/1LOW/
LOW/HIX X X Signal status input from BCM
Wiper auto stopWIP AUTO
STOPACT P/STOP P X X X Output status of IPDM E/R
Wiper protection WIP PROT OFF/Block X X X Control status of IPDM E/R
Starter request ST RLY REQ ON/OFF X X
Status of input signal
NOTE
Ignition relay
statusIGN RLY ON/OFF X X XIgnition relay status monitored
with IPDM E/R
Rear defogger re-
questRR DEF REQ ON/OFF X X X Signal status input from BCM
Oil pressure
switchOIL P SW (*1) OPEN/CLOSE X XSignal status input from IPDM
E/R
Hood switch HOOD SW OFF XSignal status input from IPDM
E/R

PG-20
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
NOTE:
• Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC posi-
tion, display may not be correct.
• (*1) This item is displayed, but does not function.
CAN DIAG SUPPORT MNTR
Refer to LAN-4.
ACTIVE TEST
Auto Active TestINFOID:0000000003533839
DESCRIPTION
• In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems:
- Rear window defogger
- Front wipers
- Tail and parking lamps
- Front fog lamps
- Headlamps (Hi, Lo)
- A/C compressor (magnet clutch)
- Cooling fan
OPERATION PROCEDURE
1. Close hood and front door RH, and lift wiper arms away from windshield (to prevent glass damage by
wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON and, within 20 seconds, press front door switch LH 10 times. Then turn ignition
switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once.
6. After a series of operations is repeated three times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
Theft warning
horn requestTHFT HRN REQ ON/OFF X X Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF X X Output status of IPDM E/R
Daytime running
lamp requestDTRL REQ ON/OFF X X Signal status input from BCM Item nameCONSULT-II
screen displayDisplay or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Test name CONSULT-II screen display Description
Rear defogger output REAR DEFOGGERWith a certain ON-OFF operation, the rear defogger relay can be oper-
ated.
Front wiper (HI, LO) output FRONT WIPERWith a certain operation (OFF, HI ON, LO ON), the front wiper relay (Lo,
Hi) can be operated.
Cooling fan output MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
Lamp (HI, LO, TAIL, FOG)
outputEXTERNAL LAMPSWith a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
lamp relay (Low, High, Tail, Fog) can be operated.
Cornering lamp output CORNERING LAMP —
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.