2011 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2011 Factory Service Manual
INL-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
INTERIOR ROOM LAMP CONTROL SYSTEM
INTERIOR ROOM LAMP CONTROL SYSTEM : System DiagramINFOID:0000000006216050
INTERIOR ROOM LAMP CONTROL SYSTEM : System Desc

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INFINITI QX56 2011 Factory Service Manual
SYSTEMINL-7
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Interior Room Lamp Timer Basic Operation
NOTE:
A: Sets the interior room lamp gradual brightening and dimming time.
B: Gradually br

SYSTEMINL-7
< SYSTEM DESCRIPTION >
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Interior Room Lamp Timer Basic Operation
NOTE:
A: Sets the interior room lamp gradual brightening and dimming time.
B: Gradually brightens from 0% to 100% and gradually dims from 100% to 0% in 1 second.
The interior room lamp turns ON and OFF (gradual brightening and dimming) by the interior room lamp
timer.
BCM judges the vehicle condition with the following items. It activates the interior room timer.
- Ignition switch status
- Door switch signal (except back door)
- Door lock/unlock signal (remote keyless entry receiv er, each door request switch, door key cylinder switch,
door lock/unlock switch)
NOTE:
Each function of interior room lamp ti mer can be set by CONSULT-III. Refer to INL-14, "
INT LAMP : CON-
SULT-III Function (BCM - INT LAMP)".
Interior Room Lamp ON Operation
BCM always turns the interior room lamp ON when any door opens excepting back door.
When all doors are closed, and any all door unlock operation is performed or ignition switch is turned OFF,
BCM brightens interior room lamp to 30% bri ghtness and maintains 30% brightness until any door opens.
BCM activates the interior room timer in any of the fo llowing conditions to turn the interior room lamp ON for
a period of time.
- Any door opens before all doors close excepting back door.
- Ignition switch is turned ON → OFF.
- Any door unlock signal is detected when all doors cl ose excepting back door with ignition switch OFF.
NOTE:
The timer restarts if new condition is input during the timer operating time.
Interior Room Lamp OFF Operation
BCM stops the timer and turns interior room lamp OF F, when any of the following conditions is satisfied.
The interior room lamp timer operating time is expired with all doors closed excepting back door.
Ignition switch position is other than O FF with all doors close excepting back door.
Any door lock signal is detected with all doors close excepting back door.
LUGGAGE ROOM LAMP CONTROL
BCM controls the luggage room lamp and automatic back door close switch illumination (ground-side) to turn
ON with back door switch ON.
When luggage room lamp switch is turned to the ON position, luggage room lamp turns ON.
When luggage room lamp switch is in the DOOR position and back door is opened, luggage room lamp turns ON.
When back door is opened, automatic back door close switch illumination turn ON.
STEP LAMP CONTROL
BCM controls the step lamp (ground-side) to turn ON with any door switch ON excepting back door.
PUDDLE LAMP TIMER CONTROL
Puddle Lamp Timer Basic Operation
BCM controls the ground to turn the puddle lamp ON.
JMLIA0961GB
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
INL-8
< SYSTEM DESCRIPTION >
SYSTEM
The puddle lamp turns ON and OFF by the puddle lamp timer.
BCM judges the vehicle condition with the following items. It activates the puddle lamp timer.
- Ign

INL-8
< SYSTEM DESCRIPTION >
SYSTEM
The puddle lamp turns ON and OFF by the puddle lamp timer.
BCM judges the vehicle condition with the following items. It activates the puddle lamp timer.
- Ignition switch status
- Door switch signal (except back door)
- Door lock/unlock signal (remote keyless entry receiver, each door request switch)
- Driver side door lock status
Puddle Lamp ON Operation
BCM activates the puddle lamp timer in any of the following conditions to turn the puddle lamp ON for a period
of time.
Any door opens excepting back door.
Any door opens before all doors close excepting back door.
Ignition switch is turned ON → OFF.
Door unlock signal by remote keyless entry rece iver or each door request switch is detected.
Driver side door is locked*.
NOTE:
The timer restarts if new condition is input during the timer operating time.
Puddle Lamp OFF Operation
BCM stops the timer and turns puddle lamp OFF, when any of the following conditions are satisfied.
The puddle lamp timer operating time is expired.
The interior room lamp OFF conditions.
The interior room lamp timer operating time is expired.
PUSH-BUTTON IGNITION SWITCH ILLUMINATION CONTROL
Push-button Ignition Switch Illumination Basic Operation
BCM controls the ON/OFF status of push-button igni tion switch illumination according to vehicle status.
BCM provides the push-button ignition switch illumi nation control signal and the ground to turn the push-but-
ton ignition switch illumination ON.
BCM cuts the ground supply while each illumination (tai l lamp) is ON. BCM switches to the ground control
according to the meter illumination control function. Refer to MWI-16, "
METER ILLUMINATION CONTROL :
System Description".
Heart Beat Operation
BCM repeats brightening and dimming operation of push-button ignition switch illumination when any of the
following conditions are satisfied.
Welcome light function operates.
When ignition switch is OFF and any of the following conditions are satisfied.
- Driver side door changes from closed to open
- Driver side door changes from locked to unlocked
- Intelligent Key ID comparison is OK and driver side door changes from open to closed
- ID comparison by Intelligent Key transponder is OK
Illumination ON Operation
When ignition switch is not OFF or tail lamp turns ON, push-button ignition switch illumination turns ON.
Dimming Operation
When tail lamp turns OFF and ignition switch is turned OFF, push-button ignition switch illumination dims to
50% brightness.
Illumination OFF Operation
Push-button ignition switch illumination turns OFF when ignition switch turns OFF and tail lamp turns from ON
to OFF, while push-button ignition switch illumination is in ON status.
When push-button ignition switch illumination is at 50% brightness or in heartbeat status, and any of the fol-
lowing conditions are satisfied, push-butt on ignition switch illumination turns OFF.
15 seconds after start of heartbeat operation.
When welcome light function is not operating and any on the following conditions is satisfied.
- Driver side door is closed
- Driver side door is locked
- Intelligent Key ID comparison is NG
- Comparison of Intelligent Key ID by transponder is NG
INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
SYSTEMINL-9
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INTERIOR ROOM LAMP BATTERY SAVER SYSTEM : System DiagramINFOID:0000000006216052
INTERIOR ROOM LAMP BATTERY SA VER SYSTEM : System

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INFINITI QX56 2011 Factory Service Manual
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)".
ILLUM

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INFINITI QX56 2011 Factory Service Manual
SYSTEMINL-11
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AUTO LIGHT ADJUSTMENT SYSTEM : System DiagramINFOID:0000000006216056
AUTO LIGHT ADJUSTMENT SYSTEM : System DescriptionINFOID:00000

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INFINITI QX56 2011 Factory Service Manual
INL-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000006368143
APPLICATION ITEM
CONSULT-III perf

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INFINITI QX56 2011 Factory Service Manual
DIAGNOSIS SYSTEM (BCM)INL-13
< SYSTEM DESCRIPTION >
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INT LAMP
CONSULT screen item Indication/Unit Description
Vehicle Speed km/h Vehicle speed of the moment a particul

DIAGNOSIS SYSTEM (BCM)INL-13
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INT LAMP
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.
Revision: 2010 May2011 QX56

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