door INFINITI QX56 2011 Factory Service Manual

SYSTEMINL-9
< SYSTEM DESCRIPTION >
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INTERIOR ROOM LAMP BATTERY SAVER SYSTEM : System DiagramINFOID:0000000006216052
INTERIOR ROOM LAMP BATTERY SA VER SYSTEM : System Description
INFOID:0000000006216053
OUTLINE
 Interior room lamp battery saver is controlled by BCM.
 BCM turns applicable lamps OFF depending on the vehicle condition. This function prevents the battery
from over-discharging if the driver neglects turning OFF the any lamps.
Applicable lamps
 Map lamp
 Personal lamp
 Foot lamp
 Luggage room lamp
 Automatic back door close switch illumination
 Step lamp
 Puddle lamp
 Vanity mirror lamp
INTERIOR ROOM LAMP BATTERY SAVER FUNCTION
 When the ignition switch is turned to a position other than ON, BCM operates the timer for a period of time to
cut the interior room lamp power supply.
 BCM restart the timer when any of the following signals changes while operating the timer.
- Push-button ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (remote keyless entry re ceiver, each door request switch, door lock and unlock
switch, door key cylinder switch)
 BCM provides the interior room lamp power supply continuously when the ignition switch position is ON.
 When welcome light function operates.
NOTE:
JMLIA1189GB
Revision: 2010 May2011 QX56

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 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

INL-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
INT LAMP : CONSULT-III Fu nction (BCM - INT LAMP)
INFOID:0000000006216059
WORK SUPPORT
DATA MONITOR
JMLIA0961GB
Service item Setting item Setting
SET I/L D-UNLCK INTCON On* With the interior room lamp timer function
Off Without the interior room lamp timer function
ROOM LAMP TIMER SET MODE 2 7.5 sec.
Sets the interior room lamp ON time. (Timer operating time)
MODE 3* 15 sec.
MODE 4 30 sec.
ROOM LAMP ON TIME SET MODE 1 0.5 sec.
Sets the interior room lamp gradual brightening time.
MODE 2 1 sec.
MODE 3 2 sec.
MODE 4 3 sec.
MODE 5 0 sec.
MODE 6* Gradually brightens from 0% to 100% brightness in 1 second.
ROOM LAMP OFF TIME SET MODE 1 0.5 sec.
Sets the interior room lamp gradual dimming time.
MODE 2 1 sec.
MODE 3 2 sec.
MODE 4 3 sec.
MODE 5 0 sec.
MODE 6* Gradually dims from 100% to 0% in 1 second.
R LAMP TIMER LOGIC SET MODE 1* Interior room lamp timer activates with synchronizing all doors.
MODE 2 Interior room lamp timer activates with synchronizing the driver door only.
Monitor item
[Unit] Description
REQ SW-DR
[On/Off] The switch status input from door request switch (driver side)
REQ SW-AS
[On/Off] The switch status input from door request switch (passenger side)
REQ SW-RR
[On/Off] NOTE:
The item is indicated, but not monitored.
REQ SW-RL
[On/Off]
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)INL-15
< SYSTEM DESCRIPTION >
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ACTIVE TEST
BATTERY SAVER
BATTERY SAVER : CONSULT-III Function (BCM - BATTERY SAVER)INFOID:0000000006216060
WORK SUPPORT
*:Factory setting PUSH SW
[On/Off]
The switch status input from push-button ignition switch
UNLK SEN -DR
[On/Off] Driver door unlock status input from unlock sensor
DOOR SW-DR
[On/Off] The switch status input from door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from 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
CDL LOCK SW
[On/Off] Lock switch status input from door lock and unlock switch
CDL UNLOCK SW
[On/Off] Unlock switch status input from door lock and unlock switch
KEY CYL LK-SW
[On/Off] Lock switch status received from door key cylinder switch
KEY CYL UN-SW
[On/Off] Unlock switch status received from door key cylinder switch
TRNK/HAT MNTR
[On/Off] NOTE:
The item is indicated, but not monitored.
RKE-LOCK
[On/Off] Lock signal status received from remote keyless entry receiver
RKE-UNLOCK
[On/Off] Unlock signal status received from remote keyless entry receiver
Monitor item
[Unit] Description
Test item Operation Description
INT LAMP OnOutputs the interior room lamp control signal to turn the interior room lamps ON.
[Map lamp, personal lamp, foot lamp (when applicable lamps switch is in DOOR po-
sition.)]
Off Stops the interior room lamp control signal to turn the interior room lamps OFF.
STEP LAMP TEST On Outputs the step lamp control signal to turn the step lamps ON.
Off Stops the step lamp control signal to turn the step lamps ON.
Service item Setting item Setting
ROOM LAMP TIMER SET MODE 1
*30 min.
Sets the interior room lamp battery saver timer operating
time.
MODE 2 60 min.
BATTERY SAVER SET On
*With the exterior lamp battery saver function
Off Without the exterior lamp battery saver function
Revision: 2010 May2011 QX56

INL-16
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DATA MONITOR
ACTIVE TEST
*: Each lamp switch is in ON position.Monitor item
[Unit] Description
REQ SW-DR
[On/Off] The switch status input from door request switch (driver side)
REQ SW-AS
[On/Off] The switch status input from door request switch (passenger side)
REQ SW-RR
[On/Off] NOTE:
The item is indicated, but not monitored.
REQ SW-RL
[On/Off]
PUSH SW
[On/Off] The switch status input from push-button ignition switch
UNLK SEN-DR
[On/Off] Driver door unlock status input from unlock sensor
DOOR SW-DR
[On/Off] The switch status input from door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from 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
CDL LOCK SW
[On/Off] Lock switch status input from door lock and unlock switch
CDL UNLOCK SW
[On/Off] Unlock switch status input from door lock and unlock switch
KEY CYL LK-SW
[On/Off] Lock switch status received from door key cylinder switch
KEY CYL UN-SW
[On/Off] Unlock switch status received from door key cylinder switch
TRNK/HAT MNTR
[On/Off] NOTE:
The item is indicated, but not monitored.
RKE-LOCK
[On/Off] Lock signal status received from remote keyless entry receiver
RKE-UNLOCK
[On/Off] Unlock signal status received from remote keyless entry receiver
Test item Operation Description
BATTERY SAVER Off Cuts the interior room lamp power supply to turn interior room lamps OFF.
On Outputs the interior room lamp power supply to turn interior room lamps ON.*
Revision: 2010 May2011 QX56

INL-56
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
DTC/CIRCUIT DIAGNOSIS
INTERIOR ROOM LAMP PO WER SUPPLY CIRCUIT
DescriptionINFOID:0000000006216065
Provides the interior room lamp power supply. Also cu ts the power supply when the interior room lamp battery
saver activating.
Component Function CheckINFOID:0000000006216066
1.CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Turn each interior room lamp ON.
- Personal lamp
- Map lamp
- Foot lamp
- Luggage room lamp
- Automatic back door close switch illumination
- Step lamp
- Puddle lamp
- Vanity mirror lamp
3. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
4. With operating the test items, check t hat each interior room lamp turns ON/OFF.
Does the interior room lamp turn ON/OFF?
YES >> Interior room lamp power supply circuit is normal.
NO >> Refer to INL-56, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006216067
1.CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT-III ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- Personal lamp
- Map lamp
- Foot lamp (both sides)
- Luggage room lamp
- Automatic back door close switch illumination
- Step lamp (ALL)
- Puddle lamp (both sides)
- Vanity mirror lamp (both sides)
3. Turn ignition switch ON.
4. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
5. With operating the test item, check voltage between BCM harness connector and ground.
Is the inspection result normal?
Off : Interior room lamp OFF
On : Interior room lamp ON
BCM (–) Test item Vo l ta g e
(Approx.)
(+)
Connector Terminal
M70 56 Ground BATTERY SAVER Off 0 V
On 12 V
Revision: 2010 May2011 QX56

INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-57
< DTC/CIRCUIT DIAGNOSIS >
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YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the BCM connector.
3. Check continuity between BCM harness connector and each interior room lamp harness connector.
Is the inspection result normal?
YES >> Check for internal short circuit of each interior room lamp.
NO >> Repair or replace harnesses.
3.CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the BCM connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harnesses.
BCM Each interior room lamp Continuity
Connector Terminal Connector Terminal
M70 56 Personal lamp R21 3
Existed
Map lamp R18 8
Foot lamp
(driver side)
M89 1
Foot lamp
(passenger side) M90 2
Luggage room lamp B11 2
Automatic back door close switch D158 3
Ste p l am p
(driver side) D8 1
Ste p l am p
(passenger side) D29 1
Ste p l am p
(Rear LH) D66 1
Ste p l am p
(Rear RH) D46 1
Puddle lamp
(driver side) D3 2
Puddle lamp
(passenger side) D23 2
Vanity mirror lamp (driver side) R12 2
Vanity mirror la mp (passenger
side) R13 2
Foot lamp
(Rear LH) B479 65
Foot lamp
(Rear RH) B480 65
BCM
GroundContinuity
Connector Terminal
M70 56 Not existed
Revision: 2010 May2011 QX56

INL-58
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
INTERIOR ROOM LAMP CONTROL CIRCUIT
DescriptionINFOID:0000000006216068
Controls each interior room lamp (ground side) by PWM signal.
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function CheckINFOID:0000000006216069
CAUTION:
Before performing the diagnosis, check that the following are normal.
 Interior room lamp power supply
 Map lamp bulb
 Personal lamp bulb
 Foot lamp bulb
1.CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT-III ACTIVE TEST
1. Switch the map lamp switch and personal lamp switch to DOOR.
2. Turn ignition switch ON.
3. Select “INT LAMP” of BCM (INT LAMP) active test item.
4. With operating the test items, c heck that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).
Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?
YES >> Interior room lamp control circuit is normal.
NO >> Refer to INL-58, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006216070
1.CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT-III ACTIVE TEST
1. Switch the map lamp switch and personal lamp switch to DOOR.
2. Turn ignition switch OFF.
3. Remove all the bulbs of map lamp, foot lamp and personal lamp.
4. Turn ignition switch ON.
5. Select “INT LAMP” of BCM (INT LAMP) active test item.
6. With operating the test item, check c ontinuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to BCS-81, "
Removal and Installation".
2.CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector, map lamp connector, personal lamp connector and foot lamp connector.
3. Check continuity between BCM harness connector and foot lamp harness connector.
On : Interior room lamp gradual brightening
Off : Interior room lamp gradual dimming
BCM
Ground Test item Continuity
Connector Terminal
M70 63 INT LAMP On Existed
Off Not existed
Revision: 2010 May2011 QX56

INL-60
< DTC/CIRCUIT DIAGNOSIS >
LUGGAGE ROOM LAMP CIRCUIT
LUGGAGE ROOM LAMP CIRCUIT
DescriptionINFOID:0000000006216071
Controls the luggage room lamp and automatic back door close switch illumination (ground side) to turn the
luggage room lamp and automatic back door close switch illumination ON and OFF.
Diagnosis ProcedureINFOID:0000000006216072
CAUTION:
Before performing the diagnosis, check that the following are normal.
 Interior room lamp power supply
 Luggage room lamp bulb
1.CHECK LUGGAGE ROOM LAMP OUTPUT
1. Turn ignition switch OFF.
2. Remove the luggage room bulb.
3. Disconnect automatic back door close switch connector.
4. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to BCS-81, "
Removal and Installation".
2.CHECK LUGGAGE ROOM LAMP OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness c onnector and luggage room lamp harness connector.
3. Check continuity between BCM harness connector and automatic back door close switch harness con-
nector.
Is the inspection result normal?
YES >> Replace luggage room lamp or automatic back door close switch.
NO >> Repair or replace harnesses.
3.CHECK LUGGAGE ROOM LAMP SHORT CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
BCM
Ground Condition Continuity
Connector Terminal
M69 49 Back door Open Existed
Closed Not existed
BCM Luggage room lamp Continuity
Connector Terminal Connector Terminal
M69 49 B11 1 Existed
BCM Automatic back door close switch Continuity
Connector Terminal Connector Terminal
M69 49 D158 4 Existed
BCM GroundContinuity
Connector Terminal
M69 49 Not existed
Revision: 2010 May2011 QX56

INL-64
< DTC/CIRCUIT DIAGNOSIS >
PUDDLE LAMP CIRCUIT
PUDDLE LAMP CIRCUIT
DescriptionINFOID:0000000006216076
Controls the puddle lamp (ground side) to turn the puddle lamp ON and OFF.
Diagnosis ProcedureINFOID:0000000006216077
CAUTION:
Before performing the diagnosis, check that the following is normal.
 Interior room lamp power supply
1.CHECK PUDDLE LAMP OUTPUT
1. Turn ignition switch OFF.
2. Disconnect puddle lamp connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to BCS-81, "
Removal and Installation".
2.CHECK PUDDLE LAMP OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and puddle lamp harness connector.
Is the inspection result normal?
YES >> Replace puddle lamp.
NO >> Repair or replace harnesses.
3.CHECK PUDDLE LAMP SHORT CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harnesses.
BCM
Ground Condition Continuity
Connector Terminal
M71 72 Any door
(except back door)Open Existed
Closed Not existed
BCM Puddle lamp Continuity
Connector Terminal Connector Terminal
M71 72 Driver side D3
14 Existed
Passenger side D23
BCM
GroundContinuity
Connector Terminal
M71 72 Not existed
Revision: 2010 May2011 QX56