ECU INFINITI QX56 2010 Factory Service Manual

DLK-52
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000005380573
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.
DOOR LOCK
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM. Refer to BCS-54, "
DTCIndex".
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION The BCM part number is displayed.
CONFIGURATION • Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.
System
Sub system selection item Diagnosis mode
WORK SUPPORT DATA MONITOR ACTIVE TEST
BCM BCM ×
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ×
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITONER ×
Intelligent Key system INTELLIGENT KEY ×
Combination switch COMB SW ×
Immobilizer IMMU ××
Interior room lamp battery saver BATTERY SAVER ×××
Back door open TRUNK ××
RAP (retained accessory power) RETAINED PWR ×××
Signal buffer system SIGNAL BUFFER ××
TPMS (tire pressure monitoring sys-
tem) AIR PRESSURE MONITOR
×××
Vehicle security system THEFT ALM ×××
Panic alarm system PANIC ALARM ×
Revision: April 20092010 QX56

DLK-56
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (I
NTELLIGENT KEY UNIT)
DIAGNOSIS SYSTEM (INT ELLIGENT KEY UNIT)
CONSULT-III Function (INTELLIGENT KEY)INFOID:0000000005380577
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with Intelligent Key unit.
SELF-DIAG RESULT
Refer to DLK-196, "DTCIndex".
DATA MONITOR
ACTIVE TEST
Diagnosis mode Function Description
SELF-DIAG RESULTS Displays the diagnosis results judged by Intelligent Key unit.
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from Intelligent Key unit.
DATA MONITOR The Intelligent Key unit input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from Intelligent Key unit.
ECU IDENTIFICATION The Intelligent Key unit part number is displayed.
Monitor Item Condition
PUSH SW Indicates [ON (pushed)/OFF (released)] condition of ignition knob switch.
KEY SW Indicates [ON (inserted)/OFF (removed)] condition of key switch.
DR REQ SW Indicates [ON (pressed)/OFF (released)] co ndition of door request switch (driver side).
AS REQ SW Indicates [ON (pressed)/OFF (released)] condition of door request switch (passenger side).
IGN SW Indicates [ON (ON or START position)/OFF (other than ON and START position)] condition of
ignition switch ON position.
ACC SW Indicates [ON/OFF] condition of ignition switch ACC position.
STOP LAMP SW Indicates [ON/OFF] condition of stop lamp switch.
P RANGE SW Indicates [ON/OFF] position of shift lever park position switch.
DOOR LOCK SIG Indicates [ON/OFF] condition of LOCK signal from Intelligent Key.
DOOR UNLOCK SIG Indicates [ON/OFF] condition of UNLOCK signal from Intelligent Key.
KEYLESS PANIC Indicates [ON (pressed)/OFF (released)] condition of Intelligent Key panic button.
KEYLS PBD SIG Indicates [ON (pressed)/OFF (released)] condition of Intelligent Key back door button.
DOOR SW DR Indicates [OPEN/CLOSE] condition of front door switch (driver side) from BCM via CAN com-
munication.
DOOR SW AS Indicates [OPEN/CLOSE] condition of front door switch (passenger side) from BCM via CAN
communication.
DOOR SW RR Indicates [OPEN/CLOSE] condition of rear door switch (RH) from BCM via CAN communication.
DOOR SW RL Indicates [OPEN/CLOSE] condition of rear door switch (LH) from BCM via CAN communication.
DOOR BK SW Indicates [OPEN/CLOSE] condition of back door switch from BCM via CAN communication.
VEHICLE SPEED Displays the vehicle speed signal received from combinatio n meter by numerical value [km/h].
Revision: April 20092010 QX56

INTELLIGENT KEY BATTERY AND FUNCTIONDLK-107
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Check by connecting a resistance (approximately 300 Ω) so that the
current value becomes about 10 mA.
Is the measurement val ue within specification?
YES >> Intelligent Key battery is OK. Check remote keyless
entry receiver. Refer to DLK-103,
"ComponentFunctionCheck".
NO >> GO TO 4
4. REPLACE INTELLIGENT KEY BATTERY
1. Replace the Intelligent Key battery.
2. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
CAUTION:
• When replacing battery, keep dirt, grease, and other for-eign materials off the electrode contact area.
3. After replacing the battery, check that all Intelligent Key func- tions work properly.
Is the inspection result normal?
YES >> Intelligent Key is OK.
NO >> Check remote keyless entry receiver. Refer to DLK-103,
"ComponentFunctionCheck".
Standard : Approx. 2.5 - 3.0V
OCC0607D
PIIB6222E
Revision: April 20092010 QX56

HOMELINK UNIVERSAL TRANSCEIVERDLK-145
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DescriptionINFOID:0000000005147015
Homelink universal transceiver can store and transmit a maximum of 3 radio signals.
Allows operation of garage doors, gates, home and office lighting, entry door locks and security system, etc.
Homelink universal transceiver power supply uses vehicle battery, which enables it to maintain every program
in case battery is discharged or removed.
ABKIA0056GB
Revision: April 20092010 QX56

DLK-148
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000005380581
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition Value/Status
AIR COND SW A/C switch OFF
OFF
A/C switch ON ON
AUT LIGHT SYS Outside of the room is dark
OFF
Outside of the room is bright ON
AUTO LIGHT SW Lighting switch OFF
OFF
Lighting switch AUTO ON
BACK DOOR SW Back door closed
OFF
Back door opened ON
CARGO LAMP SW Cargo lamp switch OFF
OFF
Cargo lamp switch ON ON
CDL LOCK SW Door lock/unlock switch does not operate
OFF
Press door lock/unlock switch to the LOCK side ON
CDL UNLOCK SW Door lock/unlock switch does not operate
OFF
Press door lock/unlock switch to the UNLOCK side ON
DOOR SW-AS Front door RH closed
OFF
Front door RH opened ON
DOOR SW-DR Front door LH closed
OFF
Front door LH opened ON
DOOR SW-RL Rear door LH closed
OFF
Rear door LH opened ON
DOOR SW-RR Rear door RH closed
OFF
Rear door RH opened ON
ENGINE RUN Engine stopped
OFF
Engine running ON
FR FOG SW Front fog lamp switch OFF
OFF
Front fog lamp switch ON ON
FR WASHER SW Front washer switch OFF
OFF
Front washer switch ON ON
FR WIPER LOW Front wiper switch OFF
OFF
Front wiper switch LO ON
FR WIPER HI Front wiper switch OFF
OFF
Front wiper switch HI ON
FR WIPER INT Front wiper switch OFF
OFF
Front wiper switch INT ON
FR WIPER STOP Any position other than front wiper stop position
OFF
Front wiper stop position ON
HAZARD SW When hazard switch is not pressed
OFF
When hazard switch is pressed ON
Revision: April 20092010 QX56

BCM (BODY CONTROL MODULE)DLK-149
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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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

DLK-150
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
TRNK OPNR SWWhen back door opener switch is not pressed OFF
When back door opener switch is pressed
ON
TURN SIGNAL L Turn signal switch OFF
OFF
Turn signal switch LH ON
TURN SIGNAL R Turn signal switch OFF
OFF
Turn signal switch RH ON
VEHICLE SPEED While driving Equivalent to speedometer reading
Monitor Item
Condition Value/Status
Revision: April 20092010 QX56

BCM (BODY CONTROL MODULE)DLK-151
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Terminal LayoutINFOID:0000000005380582
Physical ValuesINFOID:0000000005380583
LIIA2443E
Revision: April 20092010 QX56

DLK-152
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
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)DLK-153
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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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