ECU INFINITI QX56 2008 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2008, Model line: QX56, Model: INFINITI QX56 2008Pages: 4083, PDF Size: 81.73 MB
Page 797 of 4083
DLK-4
BACK DOOR CLOSE SWITCH SYSTEM .......133
Diagnosis Procedure ........................................... ..133
BACK DOOR SWITCH ....................................134
Diagnosis Procedure ........................................... ..134
CINCH LATCH MOTOR SYSTEM ...................135
Diagnosis Procedure ........................................... ..135
INTELLIGENT KEY UNIT POWER BACK
DOOR INPUT SIGNAL ....................................
136
Description ........................................................... ..136
Diagnosis Procedure .............................................136
INTELLIGENT KEY UNIT POWER BACK
DOOR OUTPUT SIGNAL ................................
137
Description ........................................................... ..137
Diagnosis Procedure .............................................137
HOMELINK UNIVERSAL TRANSCEIVER ......138
Wiring Diagram .................................................... ..138
Description .............................................................139
Component Function Check ................................140
Diagnosis Procedure .............................................140
ECU DIAGNOSIS ..................................... ..142
BCM (BODY CONTROL MODULE) ............... .142
Reference Value .................................................. ..142
Terminal Layout .....................................................144
Physical Values .....................................................144
Wiring Diagram — POWER DOOR LOCK SYS-
TEM — ..................................................................
150
Fail Safe ................................................................162
DTC Inspection Priority Chart .............................163
DTC Index ........................................................... ..163
INTELLIGENT KEY UNIT ................................165
Reference Value - Intelligent Key Unit ................. ..165
Reference Value - Steering Lock Solenoid ............168
Wiring Diagram — INTELLIGENT KEY SYSTEM
— ......................................................................... ..
169
Fail Safe ................................................................186
BACK DOOR CONTROL UNIT .......................187
Reference Value .................................................. ..187
Wiring Diagram—AUTOMATIC BACK DOOR
SYSTEM— ............................................................
189
Fail Safe .............................................................. ..199
SYMPTOM DIAGNOSIS ............................200
INTELLIGENT KEY SYSTEM SYMPTOMS ... .200
Symptom Table ................................................... ..200
DOOR LOCK FUNCTION SYMPTOMS ..........201
DOOR LOCK AND UNLOCK SWITCH ................. ..201
DOOR LOCK AND UNLOCK SWITCH : Symptom
Table ......................................................................
201
INTELLIGENT KEY ................................................ ..202
INTELLIGENT KEY : Symptom Table ..................202
BACK DOOR OPENER FUNCTION ................204
BACK DOOR OPENER SWITCH .......................... .204
BACK DOOR OPENER SWITCH : Symptom Ta-
ble ........................................................................ .
204
BACK DOOR SWITCH ........................................... .204
BACK DOOR SWITCH : Symptom Table .............205
INTELLIGENT KEY ................................................ .205
INTELLIGENT KEY : Symptom Table ..................205
WARNING FUNCTION SYMPTOMS ...............206
Symptom Table .................................................... .206
KEY REMINDER FUNCTION SYMPTOMS .....209
Symptom Table .................................................... .209
HAZARD FUNCTION ..................................... ..210
Symptom Table .................................................... .210
HORN FUNCTION ............................................211
Symptom Table .................................................... .211
HOMELINK UNIVERSAL TRANSCEIVER ......212
Symptom Table .................................................... .212
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
213
Work Flow ............................................................ .213
Inspection Procedure ............................................215
Diagnostic Worksheet ...........................................217
PRECAUTION ...........................................219
PRECAUTIONS .............................................. ..219
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
219
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
219
Precaution for work ...............................................220
PREPARATION .........................................221
PREPARATION .............................................. ..221
Special Service Tool ............................................ .221
Commercial Service Tool ......................................222
ON-VEHICLE REPAIR ..............................223
HOOD ............................................................. ..223
Fitting Adjustment ................................................ .223
Removal and Installation of Hood Assembly ........224
Removal and Installation of Hood Lock Control ....225
Hood Lock Control Inspection ...............................226
DOOR ............................................................. ..228
Fitting Adjustment ................................................ .228
Removal and Installation .......................................229
Revision: March 2010 2008 QX56
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![INFINITI QX56 2008 Factory Service Manual DLK-8
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required f](/img/42/57030/w960_57030-800.png "INFINITI QX56 2008 Factory Service Manual DLK-8
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required f")
DLK-8
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required for the circuit check in the Diagnostic Procedure.
Is malfunctioning part detected?
Ye s > > G O T O 8 .
No >> Check voltage of related BCM terminals using CONSULT-III.
8.REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace- ment.
3. Check DTC. If DTC is displayed, erase it.
>> GO TO 9.
9.FINAL CHECK
When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunction have been repaired securely.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that
the symptom is not detected.
Does the symptom reappear?
YES (DTC is detected)>>GO TO 7.
YES (Symptom remains)>>GO TO 6.
NO >> Inspection end
Revision: March 2010 2008 QX56
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![INFINITI QX56 2008 Factory Service Manual DLK-24
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
Power Liftgate Switch O
peration (Fully Closed → Fully Open Operation)
• When the power liftgate switch is pres](/img/42/57030/w960_57030-816.png "INFINITI QX56 2008 Factory Service Manual DLK-24
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
Power Liftgate Switch O
peration (Fully Closed → Fully Open Operation)
• When the power liftgate switch is pres")
DLK-24
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
Power Liftgate Switch O
peration (Fully Closed → Fully Open Operation)
• When the power liftgate switch is pressed, back door control unit terminal 23 receives the signal.
• The back door control unit checks the A/T shift selector lever (P) position through terminal 18, vehicle speed
through terminal 21, ignition status through terminal 7, glass hatch is closed through terminal 17 and battery
voltage is present through terminal 3.
• When the back door control unit receives the signal, if the auto back door operating enable conditions are
met, it sends a 5 volt signal through terminal 6 and grounds terminal 9 to sound the warning chime, sends a
signal to the BCM through terminal 4 to flash the hazard lamps and unlocks the back door latch through ter-
minal 12.
• The back door control unit supplies power to the magnetic clutch and the back door motor and moves the back door in the open direction. (At this time, it also executes speed control, input reverse, and anti-pinch
detection control.)
• When the back door is opened to the full-open position, the full-open position is detected by the encoder, and the back door control unit switches the back door motor OFF and the magnetic clutch is pulsed and then
turned OFF.
• The back door is held in the fully open position by the gas stays.
Remote Keyless Entry Operation (Fully Closed → Fully Open Operation)
• When the keyfob button is pressed for at least 0.5 seconds, back door control unit terminal 21 receives the
signal.
• The back door control unit checks the A/T shift selector lever (P) position through terminal 18, vehicle speed through terminal 21, ignition status through terminal 7, glass hatch is closed through terminal 17 and battery
voltage is present through terminal 3.
• When the back door control unit receives the signal, if the auto back door operating enable conditions are
met, it sends a 5 volt signal through terminal 6 and grounds terminal 9 to sound the warning chime, sends a
signal to the BCM through terminal 4 to flash the hazard lamps and unlocks the back door latch through ter-
minal 12.
• The back door control unit supplies power to the magnetic clutch and the back door motor and moves the
back door in the open direction. (At this time, it also executes speed control, input reverse, and anti-pinch
detection control.)
• When the back door is opened to the full-open position, the full-open position is detected by the encoder,
and the back door control unit switches the back door motor OFF and the magnetic clutch is pulsed and then
turned OFF.
• The back door is held in the fully open position by the gas stays.
Back Door Handle Switch Operation (Fully Closed → Fully Open Operation)
• When the back door handle is pulled, back door control unit terminal 26 receives the signal.
• The back door control unit checks that the back door is unlocked and checks the A/T shift selector lever (P)
position through terminal 18, vehicle speed through terminal 21, ignition status through terminal 7, glass
hatch is closed, battery voltage and back door close switch position through terminal 13.
• When the back door control unit receives the signal, if all auto back door operating enable conditions are
met, it sends a 5 volt signal through terminal 6 and grounds terminal 9 to sound the warning chime, sends a
signal to the BCM through terminal 4 to flash the hazard lamps and unlocks the back door latch through ter-
minal 12.
• The back door control unit supplies power to the magnetic clutch and the back door motor and moves the
back door in the open direction. (At this time, it also executes speed control, input reverse, and anti-pinch
detection control.)
• When the back door is opened to the full-open position, the full-open position is detected by the encoder,
and the back door control unit switches the back door motor OFF and the magnetic clutch is pulsed and then
turned OFF.
• The back door is held in the fully open position by the gas stays.
Power Liftgate Switch Operation (Fully Open → Fully Closed Operation)
• When the power liftgate switch is pressed, the ba ck door control unit terminal 23 receives the signal.
• The back door control units checks door position through the rotary encoder.
• When the back door control unit receives the signal, if the auto back door operating enable conditions are
met, it sends a signal through terminal 6 and grounds terminal 9 to sound the warning chime and sends a
signal to the BCM through terminal 4 to flash the hazard lamps.
• The back door control unit supplies power to the magnetic clutch and the back door motor and move the back door in the close direction. (At this time, it al so executes speed control, input reverse, and anti-pinch
detection control.)
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![INFINITI QX56 2008 Factory Service Manual BACK DOOR OPENER FUNCTIONDLK-25
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BACK DOOR OPENER FUNCTIONDLK-25
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• When the back door reaches the half-latch state, the half- latch switch detects this and the signal is sent to
the back door control unit terminal 22.
• When the back door control unit receives the half latch switch signal, it switches OFF the back door motor
and the magnetic clutch and operates the cinch latch motor.
• When the back door latch operates and full close is det ected through terminal 14 of the back door control
unit, the cinch latch motor reverses to the neutral position and the back door aut\
o closure operation ends
and the door is fully closed.
Remote Keyless Entry Operation (Fully Open → Fully Closed Operation)
• When the remote keyless entry switch is pressed for at least 0.5 seconds, the back door control unit terminal
21 receives the signal.
• The back door control units checks door position through the rotary encoder.
• When the back door control unit receives the signal, if the auto back door operating enable conditions are
met, it sends a signal through terminal 6 and grounds terminal 9 to sound the warning chime and sends a
signal to the BCM through terminal 4 to flash the hazard lamps.
• The back door control unit supplies power to the m agnetic clutch and the back door motor and move the
back door in the close direction. (At this time, it al so executes speed control, input reverse, and anti-pinch
detection control.)
• When the back door reaches the half-latch state, the half- latch switch detects this and the signal is sent to
the back door control unit terminal 22.
• When the back door control unit receives the half latch switch signal, it switches OFF the back door motor
and the magnetic clutch and operates the cinch latch motor.
• When the back door latch operates and full close is det ected through terminal 14 of the back door control
unit, the cinch latch motor reverses to the neutral position and the back door aut\
o closure operation ends
and the door is fully closed.
Back Door Close Switch Operation (Fully Open → Fully Closed Operation)
• When the back door close switch is pressed, the ba ck door control unit terminal 8 receives the signal.
• The back door control units checks back door close switch (terminal 13) status and door position (must be
fully opened), through rotary encoder and battery voltage.
• When the back door control unit receives the signal, if the auto back door operating enable conditions are met, it sends a signal through terminal 6 and grounds terminal 9 to sound the warning chime and sends a
signal to the BCM through terminal 4 to flash the hazard lamps.
• The back door control unit supplies power to the m agnetic clutch and the back door motor and move the
back door in the close direction. (At this time, it al so executes speed control, input reverse, and anti-pinch
detection control.)
• When the back door reaches the half-latch state, the half- latch switch detects this and the signal is sent to
the back door control unit terminal 22.
• When the back door control unit receives the half latch switch signal, it switches OFF the back door motor and the magnetic clutch and operates the cinch latch motor.
• When the back door latch operates and full close is det ected through terminal 14 of the back door control
unit, the cinch latch motor reverses to the neutral position and the back door aut\
o closure operation ends
and the door is fully closed.
Reversal
The door will reverse direction during power open or close operation if the automatic door main switch, keyfob
or back door close switch is operated. A chime will sound to announce the reversal.
Anti-Pinch Function
• During auto operation, if an object is detected in the door's path, a warning chime sounds and the back door
operates in the reverse direction to prevent pinching.
• During auto close operation, if an object is detected by the pinch strips in the door's path, a warning chime sounds and the back door operates in the open direction until it is fully open.
Gas Stay Check
• During each power open operation, the back door control unit monitors motor current draw to determine ifthe gas stays are functioning properly.
• If a malfunction of the gas stays is detected, the back door control unit will close the back door while sound-
ing the warning chime. The back door cannot be opened usi ng the switches until the gas stay malfunction is
repaired.
Warning Functions
• The hazard warning lamps flash and a warning chime is sounded according to the back door operating state,
operations, and conditions.
Revision: March 2010 2008 QX56
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![INFINITI QX56 2008 Factory Service Manual DLK-34
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
WARNING FUNCTION
WARNING FUNCTION
System DescriptionINFOID:0000000001538926
OPERATION DESCRIPTION
The warning functions are as follows and ar](/img/42/57030/w960_57030-826.png "INFINITI QX56 2008 Factory Service Manual DLK-34
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
WARNING FUNCTION
WARNING FUNCTION
System DescriptionINFOID:0000000001538926
OPERATION DESCRIPTION
The warning functions are as follows and ar")
DLK-34
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
WARNING FUNCTION
WARNING FUNCTION
System DescriptionINFOID:0000000001538926
OPERATION DESCRIPTION
The warning functions are as follows and are given to the user as warning information and warnings using
combinations of Intelligent Key warning buzzer, KEY warning lamp and combination meter display in combina-
tion meter.
• Intelligent Key system malfunction
• OFF position warning
• P position warning
• Take away warning
• Door lock operation warning
• Key warning
• Intelligent Key insert information
• Engine start information
• Steering lock information
• Intelligent key low battery warning
• Key ID warning
OPERATION CONDITION
Once the following condition from below is established, alert or warning will be executed.
Warning/Information functions
Operation procedure
Intelligent Key system malfunction When a malfunction is detected on BCM, warning message will display.
OFF position warning For internal
• Ignition switch: ACC position.
• Door switch (driver side
): ON (Door is open).
For external OFF position warning (For internal) is in active mode, driver side door has
been closed.
NOTE:
OFF position (For external) active only when each of the sequence has oc-
curred as below: P position warning
→ ACC warning → OFF position warning
(For internal) → OFF position warning (For internal)
P position warning • Shift position: Except P position
• Engine is running to stopped (Ignition switch is ON to OFF)
Ta k e a w a y w a r n i n g Door is open to close
• Ignition switch: Except LOCK position.
• Door switch: ON to OFF (Door is open to close).
• Intelligent Key can not be detected inside the vehicle.
Door is open • Door switch: ON (Door is open)
• Key ID verification every 5 seconds when registered Intelligent Key can not
be detected inside the vehicle.
Take away through win-
dow • Engine is running.
• Key ID verification every 30 seconds when registered Intelligent Key can not
be detected inside the vehicle.
• After vehicle speed verification, the registered Intelligent Key can not be de- tect inside the vehicle.
Door lock operation warn-
ing Request switch operation
When request switch is pushed (lock operation) under the following conditions.
• Door switch: ON (Any door is open).
• Intelligent Key is inside vehicle.
Intelligent Key button op-
eration When Intelligent Key button is pushed (lock operation) under the following con-
ditions.
• Door switch: ON (Any door is open).
• Intelligent key is inside vehicle.
Key warning • Ignition switch is OFF position.
• Driver side door switch: ON (Driver side door is open).
• Keyfob is pressed inside the vehicle.
Intelligent Key insert information • Door switch: ON to OFF (Door is open to close).
• Ignition switch: OFF to ON position.
• Intelligent Key can not be detected inside the vehicle.
Revision: March 2010
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![INFINITI QX56 2008 Factory Service Manual DLK-48
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000004884062
APPL](/img/42/57030/w960_57030-840.png "INFINITI QX56 2008 Factory Service Manual DLK-48
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000004884062
APPL")
DLK-48
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000004884062
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
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)INFOID:0000000004884063
WORK SUPPORT
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-50, "
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 ×××
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 PANIC ALARM ×
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![INFINITI QX56 2008 Factory Service Manual DLK-52
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (I
NTELLIGENT KEY UNIT)
DIAGNOSIS SYSTEM (INT ELLIGENT KEY UNIT)
CONSULT-III Function (INTELLIGENT KEY)INFOID:00000000015389](/img/42/57030/w960_57030-844.png "INFINITI QX56 2008 Factory Service Manual DLK-52
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (I
NTELLIGENT KEY UNIT)
DIAGNOSIS SYSTEM (INT ELLIGENT KEY UNIT)
CONSULT-III Function (INTELLIGENT KEY)INFOID:00000000015389")
DLK-52
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (I
NTELLIGENT KEY UNIT)
DIAGNOSIS SYSTEM (INT ELLIGENT KEY UNIT)
CONSULT-III Function (INTELLIGENT KEY)INFOID:0000000001538939
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with Intelligent Key unit.
WORK SUPPORT
SELF-DIAG RESULT
Refer to DLK-163, "DTCIndex".
DATA MONITOR
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
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.
Support item DescriptionSelection item Condition
CONFIRM KEY FOB ID It can check whether Intelligent Key ID code
is registered or not. ——
TAKE OUT FROM WINDOW WARN Take away warning chime (from window)
mode can be changed. ON
Active
OFF Inactive
LOW BATT OF KEY FOB WARN Intelligent Key low battery warning mode can
be changed. ON
Active
OFF Inactive
KEYLESS FUNCTION Door lock function with Intelligent Key can be
changed. ON
Active
OFF Inactive
ANSWER BACK FUNCTION Buzzer reminder operation can be changed. ON
Active
OFF Inactive
SELECTIVE UNLOCK FUNCTION Anti-hi jack mode can be changed. ON
Active
OFF Inactive
HAZARD ANSWER BACK Hazard reminder operation mode can be
changed. Refer to DLK-43
.
ANSWER BACK WITH I-KEY LOCK Buzzer reminder operation (lock operation)
mode by each door request switch can be
changed. BUZZER
Active
OFF Inactive
ANSWER BACK WITH I-KEY UNLOCK Buzzer reminder operation (unlock operation)
mode by each door request switch can be
changed. BUZZER
Active
OFF Inactive
AUTO RELOCK TIMER Auto door lock operation mode can be
changed. OFF
Inactive
2 min Active
LOCK/UNLOCK BY I-KEY Door lock function by door request switch can
be changed. ON
Active
OFF Inactive
Monitor Item Condition
KEY SW Indicates [ON (inserted)/OFF (removed)] condition of key switch.
DR REQ SW Indicates [ON (pressed)/OFF (released)] condition of door request switch (driver side).
Revision: March 2010 2008 QX56
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![INFINITI QX56 2008 Factory Service Manual INTELLIGENT KEY BATTERY AND FUNCTIONDLK-103
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INTELLIGENT KEY BATTERY AND FUNCTIONDLK-103
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2. Insert a flat-blade screwdriver (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the
lower part.
CAUTION:
• Do not touch the circuit board or battery terminal.
• The keyfob is water-resistant. However, if it does get wet,immediately wipe it dry.
3. Replace the battery with new one.
4. 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.
5. 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-99,
"ComponentFunctionCheck".
Special Repair RequirementINFOID:0000000001539013
Refer to CONSULT-III Operation Manual.
PIIB6221E
PIIB6222E
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![INFINITI QX56 2008 Factory Service Manual HOMELINK UNIVERSAL TRANSCEIVERDLK-139
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DescriptionINFOID:0000000001539049
Homelink universal transceiver can stor](/img/42/57030/w960_57030-931.png "INFINITI QX56 2008 Factory Service Manual HOMELINK UNIVERSAL TRANSCEIVERDLK-139
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Homelink universal transceiver can stor")
HOMELINK UNIVERSAL TRANSCEIVERDLK-139
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DescriptionINFOID:0000000001539049
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.
ALKIA0650GB
Revision: March 2010 2008 QX56
Page 935 of 4083
![INFINITI QX56 2008 Factory Service Manual DLK-142
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000004884071
VALUES ON THE DIAGNOSIS TOOL
Monitor Ite](/img/42/57030/w960_57030-934.png "INFINITI QX56 2008 Factory Service Manual DLK-142
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000004884071
VALUES ON THE DIAGNOSIS TOOL
Monitor Ite")
DLK-142
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000004884071
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
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
LIGHT SW 1ST Lighting switch OFF
OFF
Lighting switch 1st ON
Revision: March 2010 2008 QX56