key INFINITI QX56 2010 Factory Service Manual

INL-12
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
INT LAMP : CONSULT-III Fu nction (BCM - INT LAMP)
INFOID:0000000005356687
WORK SUPPORT
* : Initial setting
DATA MONITOR
JPLIA0093GB
Work ItemSetting 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 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 4 sec.
MODE 6 5 sec.
MODE 7 0 sec.
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 4 sec.
MODE 6 5 sec.
MODE 7 0 sec.
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Ignition switch (ON) status judges from IGN signal (ignition power supply)
KEY ON SW [ON/OFF] The switch status input from key switch
DOOR SW-DR [ON/OFF] The switch status input from front door switch LH
DOOR SW-AS [ON/OFF] The switch status input from front door switch RH
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
BACK DOOR SW [ON/OFF] The switch status input from back door switch
KEY CYL LK-SW [ON/OFF] Lock switch status input from door lock and unlock switch
KEY CYL UN-SW [ON/OFF] Lock switch status input from door lock and unlock switch
Revision: April 20092010 QX56

DIAGNOSIS SYSTEM (BCM)INL-13
< FUNCTION DIAGNOSIS >
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ACTIVE TEST
BATTERY SAVER
BATTERY SAVER : CONSULT-III Function (BCM - BATTERY SAVER)INFOID:0000000005356711
WORK SUPPORT
*: Initial setting
DATA MONITOR
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
I-KEY LOCK [ON/OFF] Lock signal status received from Intelligent Key unit by CA N communication
I-KEY UNLOCK [ON/OFF] Unlock signal status received from Intelligen t Key unit by CAN communication
Monitor Item
[Unit] Description
Test Item
Operation Description
IGN ILLUM ON
Outputs the ignition keyhole illumination control signal to turn the ignition keyhole il-
lumination lamp ON.
OFF Stops the ignition keyhole illumination control signal to turn the ignition keyhole illu-
mination lamp OFF.
INT LAMP ON Outputs the interior room lamp control signal to turn the interior room lamps ON.
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 OFF.
LUGGAGE LAMP TEST ON Outputs the luggage lamp control signal to turn the luggage lamp ON.
OFF Stops the luggage lamp control signal to turn the luggage lamp OFF.
Work 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.
MODE 3 10 min.
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Ignition switch (ON) status judges from IGN signal (ignition power supply)
KEY ON SW [ON/OFF] The switch status input from key switch
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
BACK DOOR SW [ON/OFF] The switch status input from back door switch
KEY CYL LK-SW [ON/OFF] Lock switch status input from door key cylinder switch
KEY CYL UN-SW [ON/OFF] Unlock switch status input from door key cylinder 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
I-KEY LOCK [ON/OFF] Lock signal status received from Intelligent Key unit by CA N communication
I-KEY UNLOCK [ON/OFF] Unlock signal status received from Intelligen t Key unit by CAN communication
Revision: April 20092010 QX56

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUITINL-17
< COMPONENT DIAGNOSIS >
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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
DescriptionINFOID:0000000005146727
Provides the battery saver output/power supply. Also cu ts the power supply when the interior room lamp bat-
tery saver is activating.
Component Function CheckINFOID:0000000005146728
1.CHECK BATTERY SAVER OUTPUT /POWER SUPPLY FUNCTION
CONSULT-III
1. Turn ignition switch ON.
2. Turn each interior room lamp ON.
- Front room/map lamp assembly
- Vanity lamps
- Personal lamp 2nd row
- Personal lamp 3rd row
- Cargo lamp
3. Open the driver door to turn ON the step lamps, foot lamps and puddle lamps.
- Front step lamps
- Rear step lamps
- Foot lamps
- Puddle lamps
- Ignition keyhole Illumination
4. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
5. While operating the test item, check that each interior room lamp turns ON/OFF.
Is the inspection result normal?
YES >> Battery saver output/power supply circuit is normal.
NO >> Refer to INL-17, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146729
Regarding Wiring Diagram information, refer to BCS-49, "Wiring Diagram".
1.CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
CONSULT-III
1. Turn ignition switch ON.
2. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active
test item.
3. While operating the test item, check voltage between BCM con-
nector M20 terminal 56 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Replace BCM. Refer to BCS-59, "
Removal and Installation".
2.CHECK BATTERY SAVER OUTPUT/P OWER SUPPLY OPEN CIRCUIT
OFF : Interior room lamps OFF
ON : Interior room lamps ON
(+)
(-)Te s t i t e m
Voltag e
Connector Terminal BATTERY SAVER
M20 56 Ground OFF
0V
ON Battery voltage
ALLIA0408GB
Revision: April 20092010 QX56

INL-18
< COMPONENT DIAGNOSIS >
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
-BCM M20
- Ignition keyhole illumination
- Front step lamp LH
- Front step lamp RH
- Door mirror LH
- Door mirror RH
- Rear step lamp LH
- Rear step lamp RH
- Foot lamp LH
- Foot lamp RH
- Front room/map lamp assembly
- Vanity lamp LH
- Vanity lamp RH
- Cargo lamp
- Personal lamp 2nd row
- Personal lamp 3rd row
3. Check continuity between BCM connector M20 terminal 56 and each interior room lamp connector.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair the harness or connectors.
3.CHECK BATTERY SAVER OUTPUT/P OWER SUPPLY SHORT CIRCUIT
Check continuity between BCM connector M20 terminal 56 and
ground.
Is the inspection result normal?
YES >> Check that each interior room lamp has no internal short circuit.
NO >> Repair the harness or connectors.
BCM Interior room lamp
Continuity
Connector Terminal ConnectorTerminal
M20 56 Ignition keyhole illumination
M1501
Ye s
Front step lamp LH
D111
Front step lamp RH D1091
Door mirror LH D412
Door mirror RH D10712
Rear step lamp LH D2061
Rear step lamp RH D3061
Foot lamp LH M991
Foot lamp RH M1001
Front room/map lamp assembly R1026
Vanity lamp LH R31
Vanity lamp RH R81
Cargo lamp B1532
Personal lamp 2nd row R2033
Personal lamp 3rd row R2053
Connector Terminal —Continuity
M20 56Ground No
ALLIA0409GB
Revision: April 20092010 QX56

INL-26
< COMPONENT DIAGNOSIS >
IGNITION KEYHOLE ILLUMINATION CONTROL CIRCUIT
IGNITION KEYHOLE ILLUMINATION CONTROL CIRCUIT
DescriptionINFOID:0000000005146739
Controls the ignition keyhole illumination (ground side) to turn the ignition keyhole illumination ON and OFF.
Component Function CheckINFOID:0000000005146740
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply circuit
• Ignition keyhole illumination bulb
1.CHECK IGNITION KEYHOLE ILLUMINATION OPERATION
CONSULT-III
1. Turn the ignition switch ON.
2. Select “IGN ILLUM” of BCM (INT LAMP) active test item.
3. While operating the test item , check that the ignition keyhole illumination turns ON/OFF
Is the inspection result normal?
YES >> Ignition keyhole illumination circuit is normal.
NO >> Refer to INL-26, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146741
Regarding Wiring Diagram information, refer to INL-28, "Wiring Diagram".
1.CHECK IGNITION KEYHOLE OUTPUT
CONSULT-III
1. Turn ignition switch ON.
2. Select “IGN ILLUM” of BCM (INT LAMP) active test item.
3. While operating the test item, check voltage between BCM con- nector M18 terminal 1 and ground.
Is the inspection result normal?
YES >> Ignition keyhole illumination control circuit is operating normally.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.CHECK IGNITION KEYHOLE ILLUMINATION OPEN CIRCUIT ON : Ignition keyhole illumination ON
OFF : Ignition keyhole illumination OFF
Connector Terminal — IGN ILLUM Voltage
M18 1 Ground ON
0V
OFF Battery voltage
ALLIA0420GB
Revision: April 20092010 QX56

IGNITION KEYHOLE ILLUMINATION CONTROL CIRCUIT
INL-27
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect BCM connector M18 and ignition keyhole illumina- tion connector.
3. Check continuity between BCM connector M18 (A) terminal 1 and ignition keyhole illumination connector M150 (B) terminal 2.
Is the inspection result normal?
YES >> Check ignition keyhole illumination fo r an open. If OK, replace BCM. Refer to BCS-59, "Removal
and Installation". If NG, replace ignition keyhole illumination.
NO >> Repair harness or connectors.
3.CHECK IGNITION KEYHOLE ILLUMINATION SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector M18 and ignition keyhole illumina- tion connector.
3. Check continuity between BCM connector M18 terminal 1 and ground.
Is the inspection result normal?
YES >> Check ignition keyhole illumi nation for a short circuit. If
OK, replace BCM. Refer to BCS-59, "
Removal and
Installation". If NG, replace ignition keyhole illumination.
NO >> Repair harness or connectors.
BCM Ignition keyhole illumination
Continuity
Connector Terminal Connector Terminal
M18 (A) 1 M150 (B) 2 Yes
ALLIA0421GB
Connector Terminal—Continuity
M18 1Ground No
ALLIA0422GB
Revision: April 20092010 QX56

BCM (BODY CONTROL MODULE)INL-59
< ECU DIAGNOSIS >
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LIGHT SW 1ST Lighting switch OFF OFF
Lighting switch 1st
ON
HEAD LAMP SW1 Headlamp switch OFF
OFF
Headlamp switch 1st ON
HEAD LAMP SW2 Headlamp switch OFF
OFF
Headlamp switch 1st ON
HI BEAM SW High beam switch OFF
OFF
High beam switch HI ON
IGN ON SW Ignition switch OFF or ACC
OFF
Ignition switch ON ON
IGN SW CAN Ignition switch OFF or ACC
OFF
Ignition switch ON ON
INT VOLUME Wiper intermittent dial is in a dial position 1 - 7 1 - 7
I-KEY LOCK LOCK button of Intelligent Key is not pressed
OFF
LOCK button of Intelligent Key is pressed ON
I-KEY UNLOCK UNLOCK button of Intelligent Key is not pressed
OFF
UNLOCK button of Intelligent Key is pressed ON
KEY CYL LK-SW Door key cylinder LOCK position
ON
Door key cylinder other than LOCK position OF
KEY CYL UN-SW Door key cylinder UNLOCK position
ON
Door key cylinder other than UNLOCK position ON
KEY ON SW Mechanical key is removed from key cylinder
OFF
Mechanical key is inserted to key cylinder ON
OIL PRESS SW • Ignition switch OFF or ACC
• Engine running
OFF
Ignition switch ON ON
OPTICAL SENSOR Bright outside of the vehicle
Close to 5V
Dark outside of the vehicle Close to 0V
PASSING SW Other than lighting switch PASS
OFF
Lighting switch PASS ON
PUSH SW Return to ignition switch to LOCK position
OFF
Press ignition switch ON
REAR DEF SW Rear window defogger switch OFF
OFF
Rear window defogger switch ON ON
RR WASHER SW Rear washer switch OFF
OFF
Rear washer switch ON ON
RR WIPER INT Rear wiper switch OFF
OFF
Rear wiper switch INT ON
RR WIPER ON Rear wiper switch OFF
OFF
Rear wiper switch ON ON
RR WIPER STOP Rear wiper stop position
OFF
Other than rear wiper stop position ON
RR WIPER STP2 Rear wiper stop position
OFF
Other than rear wiper stop position ON
Monitor Item
Condition Value/Status
Revision: April 20092010 QX56

INL-62
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
Te r m i n a lWire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
1BR/W Ignition keyhole illumi-
nation Output OFFDoor is locked (SW OFF)
Battery voltage
Door is unlocked (SW ON) 0V
2SB Combination switch
input 5 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
3G/Y Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4Y Combination switch
input 3 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
5G/B Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6V Combination switch
input 1
9GR/R Rear window defogger
switch
Input ONRear window defogger switch
ON
0V
Rear window defogger switch
OFF 5V
10 G Hazard lamp flash Input OFF ON (opening or closing)
0V
OFF (other than above) Battery voltage
11 O Ignition switch (ACC
or ON)
InputACC or
ON Ignition switch ACC or ON
Battery voltage
12 R/L Front door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
15 L/W Tire pressure warning
check connector
Input OFF
—5V
18 P Remote keyless entry
receiver and optical
sensor (ground)
Output OFF
—0V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Revision: April 20092010 QX56

BCM (BODY CONTROL MODULE)INL-63
< ECU DIAGNOSIS >
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19 V/W Remote keyless entry
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G/W Remote keyless entry
receiver (signal) Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 G NATS antenna amp. Input OFF
→
ON Ignition switch (OFF → ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
22 W/V BUS — —Ignition switch ON or power
window timer operates
23 G/O Security indicator
lamp Output OFF
Goes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0V
25 BR NATS antenna amp. Input OFF
→
ON Ignition switch (OFF → ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
26 Y/L Rear wiper auto stop
switch 2 Input ONRise up position (rear wiper
arm on stopper)
0V
A Position (full clockwise stop
position) 0V
Forward sweep (counterclock-
wise direction) Fluctuating
B Position (full counterclock-
wise stop position) Battery voltage
Reverse sweep (clockwise di-
rection) Fluctuating
27 W/R Compressor ON sig-
nal Input ONA/C switch OFF
5V
A/C switch ON 0V
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
LIIA1893E
LIIA1894E
LIIA1895E
PIIA2344E
Revision: April 20092010 QX56

INL-64
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
28 L/R Front blower monitor Input ONFront blower motor OFF
Battery voltage
Front blower motor ON 0V
29 W/B Hazard switch Input OFFON
0V
OFF 5V
30 Y/BR Glass hatch switch Input OFF Glass hatch switch released
0V
Glass hatch switch pressed Battery
32 R/G Combination switch
output 5
Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 R/Y Combination switch
output 4 Output ONLighting, turn, wiper OFF
Wiper dial position 4
34 L Combination switch
output 3 Output ON
Lighting, turn, wiper OFF
Wiper dial position 4
35 O/B Combination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 R/W Combination switch
output 1
37 B/R Key switch and igni-
tion knob switch Input OFFIntelligent Key inserted
Battery voltage
Intelligent Key inserted 0V
38 W/L Ignition switch (ON) Input ON —Battery voltage
39 L CAN-H — —— —
40 P CAN-L — —— —
42 GR Glass hatch ajar
switch Input ONGlass hatch open
0V
Glass hatch closed Battery
43 R/B Back door latch (door
ajar switch) Input OFFON (open)
0V
OFF (closed) Battery voltage
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Revision: April 20092010 QX56