door lock INFINITI QX56 2006 Factory Workshop Manual

BL-56
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
5. Touch “BCM”.
If "BCM" is not indicated, refer to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
6. Touch “MULTI REMOTE ENT ”.
7. Select diagnosis mode. “DATA MONITOR ”, “ACTIVE TEST” and “WORK SUPPORT ”
are available.
CONSULT-II Application ItemsEIS005ZY
“MULTI REMOTE ENT”
Data Monitor
BCIA0030E
LIIA0194E
BCIA0031E
Monitored Item Description
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door latch.
KEY ON SW Indicates [ON/OFF] condition of key switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
IGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEYLESS PANIC Indicates [ON/OFF] condition of panic signal from keyfob.
KEYLESS UNLOCK Indicates [ON/OFF] condition of unlock signal from keyfob.
KEYLESS LOCK Indicates [ON/OFF] condition of lock signal from keyfob.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from door key cylinder switch.
KEY CYL UN-SW Indicates [ON/OFF] condition of unlock signal from door key cylinder switch.
KEYLESS PBD Indicates [ON/OFF] condition of power back door signal from keyfob.

REMOTE KEYLESS ENTRY SYSTEMBL-57
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Active Test
Work Support
CDL UNLOCK SWIndicates [ON/OFF] condition of unlock signal from lock/unlock switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from lock/unlock switch.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
RKE LCK-UNLCK Indicates [ON/OFF] condition of lock/unlock signal at the same time from keyfob.
RKE KEEP UNLK Indicates [ON/OFF] condition of unlock signal from keyfob.
TRNK OPN MNTR Indicates [ON/OFF] condition of glass open switch.
Monitored Item
Description
Test ItemDescription
FLASHER This test is able to check right and left hazard reminder operation. The right hazard lamp turns on
when “RH” on CONSULT-II screen is touched and the left hazard lamp turns on when "LH" on CON-
SULT-II screen is touched.
POWER WINDOW DOWN This test is able to check power window down operation. The windows are lowered when “ON ” on
CONSULT-II screen is touched.
HORN This test is able to check panic alarm and horn reminder operations. The alarm activate for 0.5 sec-
onds after “ ON” on CONSULT-II screen is touched.
DOOR LOCK This test is able to check door lock operation. The doors lock and unlock based on the item on CON-
SULT-II screen touched.
TRUNK/BACK DOOR This test is able to check back door actuator operation. The back door is opened when “OPEN ” on
CONSULT-II screen is touched.
PSB/PBD OPEN TEST This test is able to check power back door operation. The power back door is fully opened when
“
OPEN ” on the CONSULT-II screen is touched if the door operation enable conditions are met.
Test Item Description
REMO CONT ID REGIST Keyfob ID code can be registered.
REMO CONT ID ERASUR Keyfob ID code can be erased.
REMO CONT ID CONFIR It can be checked whether keyfob ID code is registered or not in this mode.
HORN CHIRP SET Horn chirp function mode can be changed in this mode. The function mode will be changed when
"CHANG SETT" on CONSULT-II screen is touched.
HAZARD LAMP SET Hazard lamp function mode can be changed in this mode. The function mode will be changed when
"CHANG SETT" on CONSULT-II screen is touched.
MULTI ANSWER BACK SET Hazard and horn reminder mode can be changed in this mode. The reminder mode will be changed
when
“CHANG SETT ” on CONSULT-II screen is touched.
AUTO LOCK SET Auto locking function mode can be changed in this mode. The function mode will be changed when
"CHANG SETT" on CONSULT-II screen is touched.
PANIC ALRM SET Panic alarm operation mode can be changed in this mode. The operation mode will be changed
when "CHANG SETT" on CONSULT-II screen is touched.
TRUNK OPEN SET Back door opener operation mode can be changed in this mode. The operation mode will be
changed when "CHANG SETT" on CONSULT-II screen is touched.
PW DOWN SET Keyless power window down (open) operation mode can be changed in this mode. The operation
mode will be changed when "CHANG SETT" on CONSULT-II screen is touched.

BL-58
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
Hazard and horn reminder mode
Auto locking function mode
Panic alarm operation mode
Back door open operation mode
Keyless power window down operation mode
MODE 1
(C mode) MODE 2
(S mode) MODE 3 MODE 4 MODE 5 MODE 6
Keyfob
operation Lock Unlock Lock Unlock Lock Unlock Lock Unlock Lock Unlock Lock Unlock
Hazard warning
lamp flash Twice Onc e Twice
———Twice Once Twice ——Once
Horn sound Once ——————— Once—Once —
MODE 1 MODE 2 MODE 3
Auto locking function 5 minutesNothing1 minute
MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 secondsNothing1.5 seconds
MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 secondsNothing0.5 seconds
MODE 1 MODE 2 MODE 3
Keyfob operation 3 secondsNothing5 seconds

REMOTE KEYLESS ENTRY SYSTEMBL-59
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Trouble Diagnosis ProcedureEIS005ZZ
1. Check the symptom and customer's requests.
2. Understand outline of system. Refer to BL-45, "
System Description" .
3. Confirm system operation.

Check that the power door lock system operates normally. Refer to BL-16, "POWER DOOR LOCK
SYSTEM" .

Check that the automatic back door system operates normally. Refer to BL-99, "AUTOMATIC BACK
DOOR SYSTEM" .
4. Perform pre-diagnosis inspection. Refer to BL-59, "
BCM Power Supply and Ground Circuit Check" .
5. Refer to trouble diagnosis chart by symptom, repair or replace any malfunctioning parts. Refer to BL-60,
"Trouble Diagnoses" .
6. Inspection End.
BCM Power Supply and Ground Circuit CheckEIS00600
1. CHECK FUSE AND FUSIBLE LINK
Check the following BCM fuses and fusible link.
NOTE:
Refer to BL-44, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse, refer to PG-4,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connectors M18, M20 terminals 11, 38, 57, 70 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Component Parts Terminal No. (SIGNAL) AmpereNo. Location
BCM 57 (BAT power supply)
15A22 Fuse block (J/B)
70 (BAT power supply) 50AfFuse and fusible link box
11 (ACC power supply) 10A4 Fuse block (J/B)
38 (IGN power supply) 10A59 Fuse and relay box
ConnectorTerminals
Signal nameIgnition
switch Vo l ta g e
(+) ( –)
M20 70
Ground Battery power
supply OFFBattery
voltage
57 Battery power
supply OFFBattery
voltage
M18 11
ACC power
supply ACC
Battery
voltage
38 IGN power
supply ONBattery
voltage
WIIA0600E

BL-60
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
Trouble DiagnosesEIS00601
SYMPTOM CHART
NOTE:

Always check the "Trouble Diagnosis Procedure" before troubleshooting. Refer to BL-59, "Trouble Diag-
nosis Procedure" .

Always check keyfob battery before replacing keyfob. Refer to BL-65, "Keyfob Battery and Function
Check" .

The panic alarm operation and power back door opener operation of remote keyless entry system do not
activate with the ignition key inserted in the ignition key cylinder.

Use Remote Keyless Entry Tester J-43241 (follow instructions on tester) to check operation of keyfob
before replacing keyfob.
ConnectorTerminals
Continuity
(+) (-)
M20 67Ground Yes
LIIA1040E
Symptom Diagnoses/service procedureReference
page
All functions of remote keyless entry system do not
operate. 1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning. BL-65
2. Check BCM and keyless receiver.
BL-66
The new ID of keyfob cannot be entered.1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.
BL-652. Key switch and key lock solenoid (insert) check
BL-62
3. Door switch checkBL-63
4. ACC power checkBL-68
5. Replace BCM.BCS-20
Door lock or unlock does not function.
(If the power door lock system does not operate
manually, check power door lock system. Refer to
BL-16, "
POWER DOOR LOCK SYSTEM" )1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.
BL-65
2. Replace BCM.
BCS-20
Hazard and horn reminder does not activate prop-
erly when pressing lock or unlock button of keyfob.1. Check hazard and horn reminder mode with CONSULT-II
NOTE:
Hazard and horn reminder mode can be changed.
First check the hazard and horn reminder mode setting.
BL-57,
"Active
Te s t"
2. Door switch check
BL-63
3. Replace BCM.BCS-20

REMOTE KEYLESS ENTRY SYSTEMBL-61
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Hazard reminder does not activate properly when
pressing lock or unlock button of keyfob.
(Horn reminder OK)1. Check hazard reminder mode with CONSULT-II
NOTE:
Hazard reminder mode can be changed.
First check the hazard reminder mode setting.
BL-57
2. Check hazard function with hazard switch
—
3. Replace BCM. BCS-20
Horn reminder does not activate properly when
pressing lock or unlock button of keyfob.
(Hazard reminder OK)1. Check horn reminder mode with CONSULT-II
NOTE:
Horn reminder mode can be changed.
First check the horn reminder mode setting.
BL-57
2. Check horn function with horn switch
—
3. IPDM E/R operation check BL-68
4. Replace BCM.BCS-20
Back door open/close operation is not carried out
with keyfob operation.
(The automatic back door system is normal.)1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.
BL-65
2. Key switch (insert) check
BL-62
3. Check that glass hatch is closed —
4. Remote keyless entry receiver system BL-66
5. Replace BCM.BCS-20
Room lamp, ignition keyhole illumination and step
lamp operation do not activate properly.1. Room lamp operation check
BL-70
2. Ignition keyhole illumination operation checkBL-70
3.Step lamp operation checkLT- 1 3 5
4. Door switch check BL-63
5. Replace BCM.BCS-20
Panic alarm (horn and headlamp) does not activate
when panic alarm button is continuously pressed.1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning. BL-65
2. Key switch and key lock solenoid (insert) check
BL-62
3. Replace BCM.BCS-20
Auto door lock operation does not activate properly.
(All other remote keyless entry functions OK.)1. Check auto door lock operation mode with CONSULT-II
NOTE:
Auto door lock operation mode can be changed.
First check the auto door lock operation mode setting.
BL-57
2. Replace BCM.
BCS-20
Keyless power window down (open) operation does
not activate properly.
(All other remote keyless entry functions OK.)1. Check power window down operation mode with CONSULT-II
NOTE:
Power window down operation mode can be changed.
First check the power window down operation mode setting.
BL-57
2. Check power window function with switch
—
3. Replace BCM. BCS-20
SymptomDiagnoses/service procedureReference
page

BL-66
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
2. CHECK KEYFOB FUNCTION
With CONSULT-II
Check keyfob function in “DATA MONITOR” mode with CONSULT-II.
When pushing each button of keyfob, the corresponding monitor item should
be turned as follows.
Without CONSULT-II
Check keyfob function using Remote Keyless Entry Tester J-43241.
OK or NG
OK >> WITH CONSULT-II: Keyfob, remote keyless entry receiver and wiring harness between BCM and remote keyless entry receiver are OK. Replace BCM. Refer to BCS-20, "
BCM" .
OK >> WITHOUT CONSULT-II: Keyfob is OK. Further inspection is necessary. Refer to BL-60, "
SYMP-
TOM CHART" .
NG >> WITH CONSULT-II: Further inspection is necessary. Refer to BL-60, "
SYMPTOM CHART" .
NG >> WITHOUT CONSULT-II: Replace keyfob. Refer to BL-71, "
ID Code Entry Procedure" .
Remote Keyless Entry Receiver System CheckEIS00605
1. REMOTE KEYLESS ENTRY RECEIVER SIGNAL
Check signal voltage waveform between BCM connector M18 termi-
nal 20 and ground using an oscilloscope.
OK or NG
OK >> Remote keyless entry receiver signal power supply, ground and signal circuits are OK. Replace BCM. Refer to BCS-20, "
BCM" .
NG >> GO TO 2. Condition
Monitor item
Pushing LOCK KEYLESS LOCK : ON
Pushing UNLOCK KEYLESS UNLOCK : ON
Keep pushing UNLOCK RKE KEEP UNLK
turns to ON 3 seconds
after UNLOCK button
is pushed.
Pushing PANIC KEYLESS PANIC : ON
Pushing LOCK and UNLOCK
at the same time RKE LCK-UNLCK : ON
Pushing Power Back Door KEYLESS PBD : ON
LIIA1487E
Condition:
Keyfob buttons released : Refer to BL-53, "
Te r m i -
nals and Reference Value
for BCM" .
Keyfob buttons pressed : Refer to BL-53, "
Te r m i -
nals and Reference Value
for BCM" .LIIA1275E

BL-76
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56
System DescriptionEIS0060F
DESCRIPTION
Operation Flow

Setting the vehicle security system
Initial condition

Ignition switch is in OFF position.
Disarmed phase

When the vehicle is being driven or when doors or glass hatch is open, the vehicle security system is set
in the disarmed phase on the assumption that the owner is inside or near the vehicle.
Pre-armed phase and armed phase

The vehicle security system turns into the "pre-armed" phase when hood, glass hatch and all doors are
closed and locked by keyfob. The security indicator lamp illuminates for 30 seconds, then the system
automatically shifts into the "armed" phase.
Canceling the set vehicle security system
When one of the following operations is performed, the armed phase is canceled.
1. Unlock the doors with the key or the keyfob.
2. Open the power back door with the keyfob. When the power back door is closed after opening the power back door with the keyfob, the system returns to the armed phase.
Activating the alarm operation of the vehicle security system
Make sure the system is in the armed phase.
When one of the following operations is performed, the system sounds the horns and flashes the headlamps
for about 50 seconds.
1. Engine hood, glass hatch or any door is opened before unlocking door with key or keyfob.
7. BCM M18, M19, M20
(view with instrument panel LH
removed) 8. Horn E3
(view with grille removed) 9. Front door lock assembly LH (key
cylinder switch) D14
10. Main power window and door lock/ unlock switch D7, D8
Power window and door lock/unlock
switch RH D105 11. Front door switch
LH B8
RH B108 12. Rear door switch
LH B18
RH B116
13. Back door latch (door ajar switch) D503 Glass hatch ajar switch D707 14. Combination meter M24
15. Hood switch E8
16. RH headlamp
PIIA1367E

VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-77
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
2. Door is unlocked without using key or keyfob.
3. Power back door is opened without using the keyfob.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

through 10A fuse [No.19, located in the fuse block (J/B)]

to combination meter (security indicator lamp) terminal 8 and

through 50A fusible link (letter f , located in the fuse and fusible link box)

to BCM terminal 70

through 15A fuse [No. 22, located in the fuse block (J/B)]

to BCM terminal 57

through 15A fuse (No. 25, located in the fuse and fusible link box)

to horn relay terminal 2

through 20A fuse (No. 52, located in the IPDM E/R) and

through 20A fuse (No. 53, located in the IPDM E/R),

to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 67

through body grounds M57, M61 and M79 and

to IPDM E/R terminals 38 and 59

through body ground E9, E15 and E24.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and glass hatch.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and glass hatch
are closed and the doors are locked.
When a door is open, BCM terminal 12, 13, 42, 47 or 48 receives a ground signal from each door switch.
When front door LH is unlocked, BCM terminal 22 receives a signal from terminal 14 of main power window
and door lock/unlock switch.
When front door RH is unlocked, BCM terminal 22 receives a signal from terminal 16 of power window and
door lock/unlock switch RH or the rear power window switch LH or RH.
When the back door is open, BCM terminal 43 receives a ground signal

from terminal 7 of the back door latch (door ajar switch)

through body grounds B7 and B19.
When the glass hatch is open, BCM terminal 42 receives a ground signal

from terminal + of the glass hatch ajar switch

through glass hatch ajar switch case ground.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by

opening a door

opening the hood

opening the glass hatch

unlocking door without using the key or keyfob.
The vehicle security system will be triggered once the system is in armed phase,

when BCM receives a ground signal at terminals 12, 13, 47, 48 (door switch), terminal 42 (glass hatch ajar
switch) or terminal 43 [back door latch (door ajar switch)], or IPDM E/R terminal 41 (hood switch) receives
a ground signal.
Power is supplied at all times

to horn relay terminal 2

BL-78
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56

through 15A fuse (No. 25, located in fuse and fusible link box).
When the vehicle security system is triggered, ground is supplied intermittently

from IPDM E/R terminal 45

to headlamp high relay and

to horn relay terminal 1.
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door must be unlocked with the key or keyfob.
When the key is used to unlock the front door LH, BCM terminal 22 receives signal

from terminal 14 of the main power window and door lock/unlock switch.
When the BCM receives this signal or unlock signal from keyfob, the vehicle security system is deactivated.
(Disarmed phase)
PANIC ALARM OPERATION
Remote keyless entry system may or may not operate vehicle security system (horn and headlamps) as
required.
When the remote keyless entry system is triggered, ground is supplied intermittently

from IPDM E/R terminal 45

to headlamp high relay and

to horn relay terminal 1.
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
CAN Communication System DescriptionEIS0060G
Refer to LAN-26, "CAN COMMUNICATION" .