2011 INFINITI QX56 fog light

DIAGNOSIS SYSTEM (IPDM E/R)EXL-29
< SYSTEM DESCRIPTION > [XENON TYPE]
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CONSULT-III Function (IPDM E/R)INFOID:0000000006368067
APPLICATION ITEM
CONSULT-III performs the following functi ons via CAN communication with IPDM E/R.
SELF DIAGNOSTIC RESULT
Refer to PCS-22, "DTCIndex".
DATA MONITOR
Monitor item
Oil pressure warning lamp does not operate Perform auto active test.
Does the oil pressure warning
lamp blink?YES
 Harness or connector be-
tween IPDM E/R and oil
pressure switch
 Oil pressure switch
 IPDM E/R
NO  CAN communication signal
between IPDM E/R and
BCM
 CAN communication signal
between BCM and combi-
nation meter
 Combination meter
Symptom Inspection contents Possible cause
Diagnosis mode Description
Ecu Identification Allows confirmation of IPDM E/R part number.
Self Diagnostic Result Displays the diagnosis results judged by IPDM E/R.
Data Monitor Displays the real-time input/output data from IPDM E/R input/output data.
Active Test IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item [Unit] MAIN SIG-
NALS Description
RAD FAN REQ
[1/2/3/4] ×Displays the value of the cooling fan speed request signal received from ECM via
CAN communication.
AC COMP REQ
[Off/On] ×Displays the status of the A/C compressor request signal received from ECM via
CAN communication.
TAIL&CLR REQ
[Off/On] ×
Displays the status of the position light request signal received from BCM via CAN
communication.
HL LO REQ
[Off/On] ×Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[Off/On] ×Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[Off/On] ×Displays the status of the front fog light request signal received from BCM via
CAN communication.
FR WIP REQ
[Stop/1LOW/Low/Hi] ×
Displays the status of the front wiper request signal received from BCM via CAN
communication.
WIP AUTO STOP
[STOP P/ACT P] ×
Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[Off/BLOCK] ×
Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
IGN RLY1 -REQ
[Off/On] Displays the status of the ignition switch ON signal received from BCM via CAN
communication.
IGN RLY
[Off/On] ×
Displays the status of the ignition relay judged by IPDM E/R.
Revision: 2010 May2011 QX56

EXL-114
< SYMPTOM DIAGNOSIS >[XENON TYPE]
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Each lamp is not turned ON/OFF with lighting switch
AUTO. Combination switch
 Harness between combination
switch and BCM
BCM Combination switch
Refer to
BCS-80, "
Symptom Table".
 Optical sensor
 Harness between optical sen- sor and BCM
BCM Optical sensor
Refer to
EXL-102, "
Component
Function Check".
Front fog lamp is not
turned ON. One side
 Front fog lamp bulb
 Harness between IPDM E/R
and front fog lamp
 Front fog lamp
 IPDM E/R Front fog lamp circuit
Refer to
EXL-94, "
Component
Function Check".
Both sides Symptom diagnosis
“BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON”
Refer to
EXL-120, "
Diagnosis Procedure".
Parking lamp is not turned ON.  Parking lamp bulb
 Harness between IPDM E/R
and front combination lamp
 Front combination lamp
 IPDM E/R Parking lamp
circuit
Refer to EXL-96, "
Component
Function Check".
Front side marker lamp is not turned ON.  Front side marker lamp bulb
 Harness between IPDM E/R
and front combination lamp
 Front combination lamp
 IPDM E/R Front side marker lamp circuit
Refer to
EXL-98, "
Component
Function Check".
Tail lamp or rear side
marker lamp is not turned
ON. Body side
 Harness between IPDM E/R
and rear combination lamp
 Rear combination lamp Tail lamp circuit (body side)
Refer to
EXL-109, "
BODY SIDE :
Component Function Check".
Back door side  Harness between IPDM E/R
and tail lamp (back door side)
 Tail lamp (back door side) Tail lamp circuit (back door side)
Refer to
EXL-110, "
BACK DOOR
SIDE : Component Function
Check".
License plate lamp is not turned ON.  License plate lamp bulb
 Harness between IPDM E/R
and license plate lamp
 License plate lamp License plate lamp circuit
Refer to
EXL-112, "
Component
Function Check".
Tail lamp, rear side marker lamp and license plate
lamp are not turned ON. Fuse
 Harness between IPDM E/R
and rear combination lamp (LH)
 IPDM E/R Tail lamp circuit (body side)
Refer to
EXL-109, "
BODY SIDE :
Component Function Check".
 Parking lamp, side marker lamp, tail lamp and li- cense plate lamp are not turned ON.
 Parking lamp, side marker lamp, tail lamp and li- cense plate lamp are not turned OFF.
(Each illumination is turned ON/OFF.) Symptom diagnosis
“PARKING, LICENSE PLATE, SIDE MARKER LAMP AND TAIL LAMPS
ARE NOT TURNED ON”
Refer to
EXL-119, "
Diagnosis Procedure".
Tail lamp indicator is not turned ON.
(Parking, side marker lamp and tail lamps are turned
ON.) Combination meter Combination meter
Data monitor “LIGHT IND”
 BCM (HEAD LAMP) Active test “TAIL LAMP”
Turn signal lamp does not
blink. Indicator lamp is nor-
mal.
(Applicable side per-
forms the high flasher
activation.)
 Harness between BCM and
each turn signal lamp
 Turn signal lamp bulb Turn signal lamp circuit
Refer to
EXL-99, "
Component
Function Check".
Indicator lamp is includ-
ed.  Combination switch
 Harness between combination
switch and BCM
BCM Combination switch
Refer to
BCS-80, "
Symptom Table".
Symptom Possible cause Inspection item
Revision: 2010 May2011 QX56

EXL-120
< SYMPTOM DIAGNOSIS >[XENON TYPE]
BOTH SIDE FRONT FOG
LAMPS ARE NOT TURNED ON
BOTH SIDE FRONT FOG LA MPS ARE NOT TURNED ON
DescriptionINFOID:0000000006213988
The front fog lamps are not turned ON in any condition.
Diagnosis ProcedureINFOID:0000000006213989
1.CHECK FUSE
Check that the following fuse is fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the applicable circuit. And then replace the fuse.
2.COMBINATION SWITCH INSPECTION
Check combination switch. Refer to BCS-80, "
Symptom Table".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning part.
3.CHECK FRONT FOG LAMP REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select “FR FOG REQ” of IPDM E/R data monitor item.
2. With operating the front fog lamp switch, check the monitor status.
Is the item status normal?
YES >> GO TO 4.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
4.FRONT FOG LAMP CIRCUIT INSPECTION
Check the front fog lamp circuit. Refer to EXL-94, "
Component Function Check".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace the malfunctioning part.
Unit Location Fuse No. Capacity
Front fog lamp IPDM E/R #50 15 A
Monitor item Condition Monitor status
FR FOG REQ Front fog lamp switch
(With lighting switch 1ST)ON On
OFF Off
Revision: 2010 May2011 QX56

FRONT FOG LAMP AIMING ADJUSTMENTEXL-123
< PERIODIC MAINTENANCE > [XENON TYPE]
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FRONT FOG LAMP AI MING ADJUSTMENT
DescriptionINFOID:0000000006213992
PREPARATION BEFORE ADJUSTING
NOTE:
 For details, refer to the regulations in your own country.
 Perform aiming if the vehicle front body has been repaired and/or the headlamp assembly has been
replaced.
Before performing aiming adjustm ent, check the following.  Adjust the tire pressure to the specification.
 Fill with fuel, engine coolant and each oil.
 Maintain the unloaded vehicle condition. (Remove luggage from the passenger compartment and the trunk
room.)
NOTE:
Do not remove the temporary tire, jack and on-vehicle tool.
 Wipe out dirt on the headlamp. CAUTION:
Never use organic solvent (thinner, gasoline etc.)
 Ride alone on the driver seat.
AIMING ADJUSTMENT SCREW
 Turn the aiming adjusting screw for adjustment.
 For the position and direction of the adjusting screw, refer to the figure.
NOTE:
A screwdriver or hexagonal wrench [6 mm (0.24 in)] can be used
for adjustment.
Aiming Adjustment ProcedureINFOID:0000000006213993
1. Place the screen. NOTE:
 Stop the vehicle facing the wall.
 Place the board on a plain road vertically.
2. Face the vehicle with the screen. Maintain 10 m (32.8 ft) between the front fog lamp center and the
screen.
3. Start the engine. Turn the front fog lamp ON. NOTE:
Shut off the headlamp light with the board to pr event from illuminating the adjustment screen.
CAUTION:
Never cover the lens surface with a tape etc. The lens is made of resin.
4. Adjust the cutoff line height (A) with the aiming adjus tment screw so that the distance (X) between the hor-
izontal center line of front fog lamp (H) and (A) becomes 200 mm (7.87 in).
A: UP
B: DOWN
JPLIA0915ZZ
Revision: 2010 May2011 QX56

EXL-124
< PERIODIC MAINTENANCE >[XENON TYPE]
FRONT FOG LAMP AIMING ADJUSTMENT
Front fog lamp light distribution on the screen
JPLIA0008ZZ
A : Cutoff line
B : High illuminance area
H : Horizontal center line of front fog lamp
V : Vertical center line of front fog lamp
X : Cutoff line height
Revision: 2010 May2011 QX56

INL-10
< SYSTEM DESCRIPTION >
SYSTEM
Each function of interior room lamp battery saver can be set by CONSULT-III. Refer to INL-15, "BATTERY
SAVER : CONSULT-III Function (BCM - BATTERY SAVER)".
ILLUMINATION CONTROL SYSTEM
ILLUMINATION CONTROL SYSTEM : System DiagramINFOID:0000000006216054
ILLUMINATION CONTROL SYS TEM : System DescriptionINFOID:0000000006216055
OUTLINE
Each illumination lamp is controlled by each function of BCM, IPDM E/R and combination meter.
Control by BCM Combination switch reading function
 Headlamp control function
Control by IPDM E/R Relay control function
Control by combination meter Meter illumination control function (Refer to MWI-16, "METER ILLUMINATION CONTROL : System Descrip-
tion".)
ILLUMINATION CONTROL
 BCM detects the combination switch conditi on by the combination switch reading function.
 BCM transmits position light request signal to IPDM E/R and combination meter according to tail lamp ON
condition.
Tail lamp ON condition- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment
- Lighting switch AUTO, with the front fog lamp switch ON and the ignition switch ON
 IPDM E/R turns the integrated tail lamp relay ON acco rding to position light request signal. It provides the
power supply to each illumination lamp.
 Combination meter enters in the nighttime mode accord ing to position light request signal. Under the night-
time mode the combination meter controls the illu minance by controlling each illumination lamp (ground
side).
AUTO LIGHT ADJUSTMENT SYSTEM
JPLIA0855GB
Revision: 2010 May2011 QX56

LAN-30
< SYSTEM DESCRIPTION >[CAN]
SYSTEM
P range signal T R R
R range signal T R R
Shift position signal R R T R R R R R
Tow mode indicator lamp
signalTR
Pre-roll over signal T R
Pre-tensioner operation
signal TR
AFS OFF indicator lamp
signal TR
A/C switch operation signal T R
Rear window defogger
switch signal TR
System selection signal T R
System setting signal TR R
RT
RT
Automatic back door re-
quest signal TR
Back door lock status signal T R
Buzzer output signal TR
RT
Buzzer request signal TR
RT
Dimmer signal T R R
Door switch signal T R R R R
Door unlock signal T R
Front fog light request sig-
nal TR
Front wiper request signal T R R
Handle position signal T R
Headlamp washer request
signal TR
High beam request signal T R R
Horn reminder signal T R
Ignition switch ON signal TRRR
RT
Ignition switch signal T R
Interlock/PNP switch signal TR
RT
Key ID signal T R
Key switch signal T R
Key warning lamp signal T R
Low beam request signal T R Signal name
ECM
4WD
ABS
TCM
A-BAG
AFSAV
BCM
CGW
HVAC
M&A
STRG
TPMS
IPDM-E ADP
PSB
E-SUS ICC
PWBD
Revision: 2010 May2011 QX56

LAN
SYSTEMLAN-31
< SYSTEM DESCRIPTION > [CAN]
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Meter display signal
TR
RT
Oil pressure switch signal TR
RT
Position light request signal T R R
Rear fog light status signal T R
Rear window defogger con-
trol signal TR
RT
Sleep wake up signal T R R R R R R
Starter control relay signal T R
Starter relay status signal TRR
RT
Starting mode signal T R
Steering lock relay signal TRR
RT
Theft warning horn request
signal TR
Turn indicator signal R T R R
A/C display signal R T
A/C ON signal R T
Ambient temperature signal T R
Blower fan ON signal R T
Distance to empty signal R T
Fuel level low warning sig-
nal RT
Fuel level sensor signal R T
Manual mode shift down
signal RT
Manual mode shift up sig-
nal RT
Manual mode signal R T
Non-manual mode signal R T
Odometer signal R T
Parking brake switch signal R R T R R
Sleep-ready signal RT
RT
RT
Tow mode switch signal R T
Wake up signal RT
RT
Steering angle sensor mal-
function signal RR T R R
Steering angle sensor sig-
nal RR RR T R R
Steering angle speed signal R T R R Signal name
ECM
4WD
ABS
TCM
A-BAG AFS
AV
BCM
CGW
HVAC M&A
STRG
TPMS
IPDM-E
ADPPSB
E-SUS ICC
PWBD
Revision: 2010 May2011 QX56