lock 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
< SYSTEM DESCRIPTION > [XENON TYPE]
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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-26
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
*: Factory setting
DATA MONITOR
ACTIVE TEST
Service item Setting item Setting
HAZARD ANSWER
BACK Lock Only With locking only
Sets the hazard warning lamp answer back function
when the door is lock/unlock with the request switch or
the key fob.
Unlk Only With unlocking only
Lock&Unlk
*With locking/unlocking
Off Without the function
Monitor item [Unit] Description
REQ SW-DR
[On/Off] The switch status input from the request switch (driver side)
REQ SW-AS
[On/Off] The switch status input from the request switch (passenger side)
PUSH SW
[On/Off] The switch status input from the push-button ignition switch
TURN SIGNAL R
[On/Off] Each switch status that BCM detects from the combination switch reading function
TURN SIGNAL L
[On/Off]
HAZARD SW
[On/Off] The switch status input from the hazard switch
RKE-LOCK
[On/Off] Lock signal status received from the remote keyless entry receiver
RKE-UNLOCK
[On/Off] Unlock signal status received from the remote keyless entry receiver
RKE-PANIC
[On/Off] Panic alarm signal status received from the remote keyless entry receiver
Test item Operation Description
FLASHER RH Outputs the voltage to blink the right side turn signal lamps.
LH Outputs the voltage to blink the left side turn signal lamps.
Off Stops the voltage to turn the turn signal lamps OFF.
Revision: 2010 May2011 QX56

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-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

EXL-84
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AFS CONTROL UNIT
AFS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006213953
1.FUSE INSPECTION
Check that the following fuses are not fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the applicable circuit. And then replace the fuse.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit harness connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between AFS control unit harness connectors and ground.
Is the inspection result normal?
YES >> Power supply and ground circuit are normal.
NO >> Repair harness or connector.
Signal name Connection position Fuse No. Capacity
Ignition power supply FUSE BLOCK (J/B) 3 10 A
(+)
(− ) Voltag e
(Approx.)
AFS control unit
Connector Terminal M135 1 Ground Battery voltage
AFS control unit GroundContinuity
Connector Terminal
M135 25 Existed
Revision: 2010 May2011 QX56

EXTERIOR LAMP FUSEEXL-85
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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EXTERIOR LAMP FUSE
Diagnosis ProcedureINFOID:0000000006213954
1.CHECK FUSE
Check that the following fuses are not fusing.
Is the inspection result normal?
YES >> The fuse is normal.
NO >> Repair the applicable circuit. And then replace the fuse.
Unit Location Fuse No. Capacity
Headlamp HI (LH) IPDM E/R #52 10 A
Headlamp HI (RH) IPDM E/R #51 10 A
Headlamp LO (LH) IPDM E/R #53 15 A
Headlamp LO (RH) IPDM E/R #54 15 A
Front fog lamp IPDM E/R #50 15 A
Parking lamp (LH)
 Front side marker lamp (LH) IPDM E/R #46 10 A
 Parking lamp (RH)
 Front side marker lamp (RH) IPDM E/R #47 10 A
 Tail lamp (Back door side LH/RH)
 Tail lamp (Body side LH)
 License plate lamp
 Rear side mark er lamp (LH) IPDM E/R #46 10 A
 Tail lamp (Body side RH)
 Rear side mark er lamp (RH) IPDM E/R #47 10 A
Stop lamp FUSE BLOCK (J/B) #7 10 A
Back-up lamp IPDM E/R #55 10 A
Revision: 2010 May2011 QX56

AFS SWITCHEXL-107
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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AFS SWITCH
Component Function CheckINFOID:0000000006213973
1.CHECK AFS SWITCH SIGNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1. Turn ignition switch ON.
2. Select “AFS SW” of ADAPTIVE LIGHT data monitor item.
3. With operating the AFS switch , check the monitor status.
Is the inspection result normal?
YES >> AFS switch circuit is normal.
NO >> Refer to EXL-107, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213974
1.CHECK AFS SWITCH FUSE
1. Turn ignition switch OFF.
2. Check that the following fuses is not fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the applicable. And then replace the fuse.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect triple switch connector.
2. Check voltage between triple switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK AFS SWITCH CIRCUIT
1. Disconnect AFS control unit connector.
2. Check continuity between AFS control unit har ness connector and triple switch harness connector.
3. Check continuity between AFS control unit harness connector and ground.
Monitor item Condition Monitor status
AFS SW AFS switch ON On
OFF Off
Location Fuse No. Capacity
Fuse block (J/B) #3 10 A
(+) (–)Voltage (V)
(Approx.)
Triple switch
Connector Terminal M126 3 Ground Battery voltage
AFS control unit Triple switch Continuity
Connector Terminal Connector Terminal
M1353M1264Existed
AFS control unit GroundContinuity
Connector Terminal
M135 3 Not existed
Revision: 2010 May2011 QX56

EXL-122
< PERIODIC MAINTENANCE >[XENON TYPE]
HEADLAMP AIMING ADJUSTMENT
Aiming Adjustment Procedure
INFOID:0000000006369513
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 headlamp center and the screen.
3. Start the engine. Turn the headlamp (LO) ON. NOTE:
Shut off the headlamp light with the board to prevent from illuminating the adjustment screen.
CAUTION:
Never cover the lens surface with a tape etc. The lens is made of resin.
4. Measure the distance (X) between the horizontal cent er line of headlamp (H) and the cutoff line (A) within
the light axis measurement range (R) from the vertical center line ahead of headlamp (V).
Low beam distribution on the screen
5. Adjust the cutoff line height (X) with the aiming adjus tment screw so as to enter in the adjustment range
(M–N) according to the horizontal center line of headlamp (H).
unit: mm (in)
Side view
Adjustment screw Screw driver rotation Facing direction
A Headlamp RH HI/LO (UP/DOWN) Clockwise UP
Counterclockwise DOWN
B Headlamp LH HI/LO (UP/DOWN) Clockwise UP
Counterclockwise DOWN
Light axis measurement range (R) : 350 ± 175 mm (13.78 ± 6.89 in)
JSLIA0005ZZ
Horizontal center line of headlamp (H) Highest cutoff line height (M) Lowest cutoff line height (N)
700 (27.56) or less 4 (0.16) 30 (1.18)
701(27.60) – 800 (31.50) 4 (0.16) 30 (1.18) 801 (31.54) or more 17 (0.67) 44 (1.73)
JSLIA0006ZZ
Distance between the headlamp center and the screen (L) : 10 m (32.8 ft)
Revision: 2010 May2011 QX56

EXL-126
< REMOVAL AND INSTALLATION >[XENON TYPE]
FRONT COMBINATION LAMP
Disconnect the battery negative terminal or remove the fuse.
1. Remove front grille. Refer to
EXT-19, "
Removal and Installation".
2. Remove front bumper molding. Refer to EXT-13, "
Removal and Installation".
3. Remove front bumper fascia. Refer to EXT-13, "
Removal and Installation".
4. Remove headlamp mounting bolts.
5. Pull out headlamp assembly forward vehicle.
6. Disconnect connectors before removing headlamp assembly.
INSTALLATION
Install in the reverse order of removal.
NOTE:
After installation, perform aiming adjustment. Refer to EXL-121, "
description".
ReplacementINFOID:0000000006369465
CAUTION:
 Disconnect the battery negative terminal or remove the fuse.
 After installing the bulb, install the resin cap and the bulb socket securely for watertightness.
 Never touch the glass of bu lb directly by hand. Keep grease an d other oily matters away from it.
Never touch bulb by hand while it is lit or right after being turned off.
 Never leave bulb out of lamp reflector for a long ti me because dust, moisture smoke, etc. may affect
the performance of lamp. When replacing bulb, be sure to replace it with new one.
HEADLAMP BULB (HI/LO)
1. Remove fender protector. Refer to EXT-23, "FENDER PROTECTOR : Removal and Installation".
2. Rotate resin cap counterclockwise and unlock it.
3. Rotate bulb socket counterclockwise and unlock it.
4. Remove retaining spring lock. And then remove bulb from headlamp housing assembly.
CAUTION:
Never break the xenon bulb ceramic tube when replacing
the bulb.
PARKING LAMP BULB
1. Remove hood switch*.
*:When replace a right.
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
FRONT TURN SIGNAL LAMP BULB
1. Remove hood switch*.
*:When replace a right.
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
SIDE MARKER LAMP BULB
1. Remove fender protector. Refer to EXT-23, "FENDER PROTECTOR : Removal and Installation"
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
JPLIA0919ZZ
Revision: 2010 May2011 QX56