Head lamp INFINITI QX56 2011 Factory Service Manual

EXL-22
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000006368037
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate ea ch device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
IVIS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)EXL-23
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HEADLAMP
HEADLAMP : CONSULT-III Func tion (BCM - HEAD LAMP)INFOID:0000000006213911
WORK SUPPORT
CONSULT screen item Indication/Unit Description
Vehicle Speed km/h Vehicle speed of the moment a particular DTC is detected
Odo/Trip Meter km Total mileage (Odometer value) of the moment a particular DTC is detected
Vehicle Condition SLEEP>LOCK
Power position status of
the moment a particular
DTC is detected While turning BCM status from low power consumption mode to
normal mode (Power supply position is “LOCK”)
SLEEP>OFF While turning BCM status from low power consumption mode to
normal mode (Power supply position is “OFF”.)
LOCK>ACC While turning power supply position from “LOCK” to “ACC”
ACC>ON While turning power supply position from “ACC” to “IGN”
RUN>ACC While turning power supply position
from “RUN” to “ACC” (Vehicle
is stopping and selector lever is except P position.)
CRANK>RUN While turning power su
pply position from “CRANKING” to “RUN”
(From cranking up the engine to run it)
RUN>URGENT While turning power su
pply position from “RUN“ to “ACC” (Emer-
gency stop operation)
ACC>OFF While turning power supply position from “ACC” to “OFF”
OFF>LOCK While turning power supply position from “OFF” to “LOCK”
OFF>ACC While turning power supply position from “OFF” to “ACC”
ON>CRANK While turning po wer supply position from “IGN” to “CRANKING”
OFF>SLEEP While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode
LOCK>SLEEP While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”.) to low power consumption mode
LOCK Power supply position is “LOCK” (Ignition switch OFF with steer-
ing is locked.)
OFF Power supply position
is “OFF” (Ignition switch OFF with steering
is unlocked.)
ACC Power supply position is “ACC” (Ignition switch ACC)
ON Power supply position is “IGN” (Ignition switch ON with engine
stopped)
ENGINE RUN Power supply posi
tion is “RUN” (Ignition switch ON with engine
running)
CRANKING Power supply position is “CRANKING” (At engine cranking)
IGN Counter 0 - 39 The number of times that ignition switch is turned ON after DTC is detected
 The number is 0 when a malfunction is detected now.
 The number increases like 1
→ 2 → 3...38 → 39 after returning to the normal condition
whenever ignition switch OFF → ON.
 The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
Service item Setting item Setting
CUSTOM A/LIGHT SETTING MODE 1*
1Normal
MODE 2 More sensitive setting than normal setting (Turns ON earlier than normal opera-
tion)
MODE 3 More sensitive setting than MODE 2 (Turns ON earlier than MODE 2)
MODE 4 Less sensitive setting than normal setting (Turns ON later than normal operation)
Revision: 2010 May2011 QX56

EXL-24
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
*1: Factory setting
*
2: For models for Canada, this item is displayed but is not operated.
DATA MONITOR
BATTERY SAVER SET On*1With the exterior lamp battery saver function
Off Without the exterior lamp battery saver function
ILL DELAY SET MODE 1*
145 sec.
Sets delay timer function timer operation time
(All doors closed)
MODE 2
Without the
function
MODE 3 30 sec.
MODE 4 60 sec.
MODE 5 90 sec.
MODE 6 120 sec.
MODE 7 150 sec.
MODE 8 180 sec.
AUTO LIGHT LOGIC SET*
2
MODE 1*1With twilight ON custom & with wiper INT, LO and HI
MODE 2 With twilight ON custom & with wiper LO and HI
MODE 3 With twilight ON custom & without
MODE 4 Without twilight ON custom & with wiper INT, LO and HI
MODE 5 Without twilight ON custom & with wiper LO and HI
MODE 6 Without twilight ON custom & without
Service item Setting item Setting
Monitor item
[Unit] Description
PUSH SW
[On/Off] The switch status input from push-button ignition switch
ENGINE STATE
[Stop/Stall/Crank/Run] The engine status received from ECM via CAN communication
VEH SPEED 1
[km/h] The value of the vehicle speed received from combination meter via CAN communi-
cation
TURN SIGNAL R
[On/Off]
Each switch status that BCM judges from the combination switch reading function
TURN SIGNAL L
[On/Off]
TA I L L A M P S W
[On/Off]
HI BEAM SW
[On/Off]
HEAD LAMP SW1
[On/Off]
HEAD LAMP SW2
[On/Off]
PASSING SW
[On/Off]
AUTO LIGHT SW
[On/Off]
FR FOG SW
[On/Off]
RR FOG SW
[On/Off]
NOTE:
This item is indicated, but can not monitored
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)EXL-25
< SYSTEM DESCRIPTION > [XENON TYPE]
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ACTIVE TEST
*: Only models for Canada display this item.
FLASHER
FLASHER : CONSULT-III F unction (BCM - FLASHER)INFOID:0000000006213912
WORK SUPPORT
DOOR SW-DR
[On/Off] The switch status input from front door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from front door switch (passenger side)
DOOR SW-RR
[On/Off] The switch status input from rear door switch RH
DOOR SW- RL
[On/Off] The switch status input from rear door switch LH
DOOR SW-BK
[On/Off] The switch status input from back door switch
OPTICAL SENSOR
[On/Off] The sensor status input from optical sensor
OPTI SEN (DTCT)
[V] The value of outside brightness voltage input from the optical sensor
OPTI SEN (FILT)
[V] The value of outside brightness voltage filtered by BCM
Monitor item
[Unit] Description
Test item Operation Description
TAIL LAMP On
Transmits the position light request signal to IPDM E/R via CAN commu-
nication to turn the tail lamp ON
Off Stops the tail lamp request signal transmission
HEAD LAMP Hi
Transmits the high beam request signal via CAN communication to turn
the headlamp (HI)
Lo Transmits the low beam request signal via CAN communication to turn
the headlamp (LO)
Off Stops the high & low beam request signal transmission
FR FOG LAMP On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON
Off Stops the front light request signal transmission
RR FOG LAMP On
NOTE:
This item is indicated, but can not tested
Off
DAYTIME RUNNING LIGHT* On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON (daytime running light system)
Off Stops the front light request signal transmission (daytime running light
system)
ILL DIM SIGNAL On Transmits the dimmer signal to combination meter via CAN communi-
cation and dims combination meter
 Transmits the dimmer signal to AV control unit and dims display
Off Stops the dimmer signal transmission
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (IPDM E/R)EXL-27
< SYSTEM DESCRIPTION > [XENON TYPE]
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DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000006368066
AUTO ACTIVE TEST
Description
In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation.
 Oil pressure warning lamp
 Rear window defogger
 Front wiper (LO, HI)
 Parking lamp
 License plate lamp
 Tail lamp
 Side marker lamp
 Front fog lamp
 Headlamp (LO, HI)
 A/C compressor (magnet clutch)
Operation Procedure
CAUTION:
Never perform auto active test in the following conditions.
 Engine is running.
 CONSULT-III is connected.
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn the ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, pr ess the driver door switch 10 times. Then turn the
ignition switch OFF.
CAUTION:
Close passenger door.
4. Turn the ignition switch ON within 10 seconds. Af ter that the horn sounds once and the auto active test
starts.
CAUTION:
Engine starts when ignition switch is turned ON while brake pedal is depressed.
5. The oil pressure warning lamp starts blinking when the auto active test starts.
6. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
 When auto active test has to be cancelled halfw ay through test, turn the ignition switch OFF.
 When auto active test is not activated, door swit ch may be the cause. Check door switch. Refer to DLK-117,
"ComponentFunctionCheck".
Inspection in Auto Active Test
When auto active test is actuated, the following operation sequence is repeated 3 times.
Operation
sequence Inspection location Operation
1 Oil pressure warning lamp Blinks continuously during operation of auto active test
2 Rear window defogger 10 seconds
3 Front wiper LO for 5 seconds → HI for 5 seconds
4 Parking lamp
 License plate lamp
 Tail lamp
 Side marker lamp
 Front fog lamp 10 seconds
Revision: 2010 May2011 QX56

EXL-28
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
Concept of auto active test
 IPDM E/R starts the auto active test with the door
switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
 The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test
5 Headlamp LO for 10 seconds →HI ON ⇔ OFF 5 times
6 A/C compressor (magnet clutch) ON ⇔ OFF 5 times
Operation
sequence Inspection location Operation
JMMIA0492GB
Symptom Inspection contents Possible cause
Rear window defogger does not operate Perform auto active test.
Does the rear window defog-
ger operate?YES BCM signal input circuit
NO  Rear window defogger
 Rear window defogger
ground circuit
 Harness or connector be- tween IPDM E/R and rear
window defogger
IPDM E/R
Any of the following components do not operate
 Parking lamp
 License plate lamp
Tail lamp
 Side marker lamp
Front fog lamp
 Headlamp (HI, LO)
 Front wiper (HI, LO) Perform auto active test.
Does the applicable system
operate?YES BCM signal input circuit
NO  Lamp or motor
 Lamp or motor ground cir-
cuit
 Harness or connector be- tween IPDM E/R and appli-
cable system
IPDM E/R
A/C compressor does not operate Perform auto active test.
Does the magnet clutch oper-
ate?YES
 A/C auto amp. signal input
circuit
 CAN communication signal
between A/C auto amp. and
ECM
 CAN communication signal
between ECM and IPDM E/
R
NO  Magnet clutch
 Harness or connector be-
tween IPDM E/R and mag-
net clutch
IPDM E/R
Revision: 2010 May2011 QX56

EXL-30
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
ACTIVE TEST
Te s t i t e m
PUSH SW
[Off/On]Displays the status of the push-button ignition switch judged by IPDM E/R.
INTER/NP SW
[Off/On] Displays the status of the shift position judged by IPDM E/R.
ST RLY CONT
[Off/On] Displays the status of the starter relay status signal received from BCM via CAN
communication.
IHBT RLY -REQ
[Off/On] Displays the status of the starter control relay signal received from BCM via CAN
communication.
ST/INHI RLY
[Off/ ST ON/INHI ON/UNKWN] Displays the status of the starter relay and starter control relay judged by IPDM
E/R.
DETENT SW
[Off/On] Displays the status of the A/T shift selector (detention switch) judged by IPDM E/
R.
S/L RLY -REQ
[Off/On] Displays the status of the steering lock relay signal received from BCM via CAN
communication.
S/L STATE
[LOCK/UNLK/UNKWN] Displays the status of the steering lock judged by IPDM E/R.
OIL P SW
[Open/Close] Displays the status of the oil pressure switch judged by IPDM E/R.
HOOD SW
[Off/On] Displays the status of the hood switch judged by IPDM E/R.
HL WASHER REQ
[Off/On] Displays the status of the headlamp washer request signal received from BCM via
CAN communication.
THFT HRN REQ
[Off/On] Displays the status of the theft warning horn request signal received from BCM
via CAN communication.
HORN CHIRP
[Off/On] Displays the status of the horn reminder signal received from BCM via CAN com-
munication.
Monitor Item
[Unit] MAIN SIG-
NALS Description
Test item Operation Description
CORNERING LAMP LH
NOTE:
This item is indicated, but cannot be tested.
RH
HORN On Operates horn relay for 20 ms.
REAR DEFOGGER Off OFF
On Operates the rear window defogger relay.
FRONT WIPER Off OFF
Lo Operates the front wiper relay.
Hi Operates the front wiper relay and front wiper high relay.
MOTOR FAN* 1OFF
2 Transmits 50% pulse duty signal (PWM signal) to the cooling fan control module.
3 Transmits 75% pulse duty signal (PWM signal) to the cooling fan control module.
4
Transmits 100% pulse duty signal (PWM signal) to the cooling fan control mod-
ule.
HEAD LAMP WASHER On Operates the headlamp washer relay for 1 second.
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (IPDM E/R)EXL-31
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*: Operates while the engine is running. EXTERNAL LAMPS
Off OFF
TAIL Operates the tail lamp relay.
Lo Operates the headlamp low relay.
Hi
Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.
Fog Operates the front fog lamp relay.
Test item Operation Description
Revision: 2010 May2011 QX56

EXL-32
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (AFS)
DIAGNOSIS SYSTEM (AFS)
CONSULT-III Function (ADAPTIVE LIGHT)INFOID:0000000006213915
APPLICATION ITEM
WORK SUPPORT
*: Adjusts the steering angle sensor neutral position on ABS actuator and electrical unit (control unit) side. Refer to
BRC-64, "Work Pro-
cedure".
DATA MONITOR
*: The swivel angle "0°" (feedback value) of the swivel position sensor signal may differ from the swivel angle "0 °" of the swivel motor
(AFS control unit command value). This causes that the swivel motor initializes the value based on the step number from the sto pper.
ACTIVE TEST
Diagnostic mode Description
Ecu Identification Allows confirmation of AFS control unit part number.
Self Diagnostic Result Displays the diagnosis results judged by AFS control unit.
Work support Sets each sensor.
Data monitor Indicates AFS control unit input data in real time.
Active test Provides the drive signal to the load. Checks operation.
Service item Description
ST ANG SEN ADJUSTMENT
*—
LEVELIZER ADJUSTMENT Adjusts the height sensor signal output value (AFS control unit recognized) in the un-
loaded vehicle condition.
Monitor item
[Unit] Description
STR ANGLS SIG
[deg] The steering angle value judged by the steering angle sensor signal received from
the steering angle sensor via CAN communication
VHCL SPD
[km/h] The vehicle speed signal value from the combination meter via CAN communication
SLCT LVR POSI
[P/R/N/D/M/FF] The selector lever status judged by the position indicator signal received from TCM
via CAN communication
HEAD LAMP
[On/Off] The headlamp On/Off status judged by the low beam headlamp (ON) signal received
from IPDM E/R via
CAN communication
AFS SW
[On/Off] The AFS On/Off status judged by AFS control unit
HI SEN OTP RR
[V] The rear height sensor signal voltage value input from the rear height sensor
HI SEN OTP FR
[V] The front height sensor signal voltage value input from the front height sensor
LEV ACTR VLTG
[%] The ratio value to the battery voltage generated by the levelizer activation signal con-
trol value judged by AFS control unit
SWVL SEN RH
*
[deg] The head lamp swivel angle value judged by AFS control unit received from the swiv-
el position sensor signal input from the swivel actuator
SWVL SEN LH
*
[deg]
SWVL ANGLE RH
*
[deg]
The swivel angle command value to the swivel motor judged by AFS control unit
SWVL ANGLE LH
*
[deg]
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (AFS)EXL-33
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CAUTION:
Start the engine when using “ACTIVE TEST”.
NOTE:
“Fast” operation speed is as three times fast as “Slow”.Test item Operation Item Description
LOW BEAM TEST RIGHT Origin Fast Swivels the right headlamp to the swivel angle 0
° in the normal speed.
Peak Fast Swivels the right headlamp to the swivel angle approximately 15
° in the nor-
mal speed.
Origin Slow Swivels the right headlamp to the swivel angle 0
° in the speed at the initial-
ization.
Peak Slow Swivels the right headlamp to the swivel angle approximately 15
° in the
speed at the initialization.
LOW BEAM TEST LEFT Origin Fast Swivels the left headlamp to the swivel angle 0
° in the normal speed.
Peak Fast Swivels the left headlamp to the swivel angle approximately 17
° in the nor-
mal speed.
Origin Slow Swivels the left headlamp to the swivel angle 0
° in the speed at the initializa-
tion.
Peak Slow Swivels the left headlamp to the swivel angle approximately 17
° in the speed
at the initialization.
LEVELIZER TEST Origin
Changes the aiming motor drive signal to approximately 70% of the battery
voltage. Moves the headlamp upward and downward.
Peak Changes the aiming motor drive signal to approximately 15% of the battery
voltage. Moves the headlamp upward and downward.
Revision: 2010 May2011 QX56