2009 INFINITI QX56 window

BCM (BODY CONTROL MODULE)DLK-153
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
58 W/R Optical sensor Input ONWhen optical sensor is illumi-
nated
3.1V or more
When optical sensor is not illu-
minated 0.6V or less
59 G Front door lock as-
sembly LH actuator
(unlock) Output OFF
OFF (neutral)
0V
ON (unlock) Battery voltage
60 G/B Turn signal (left) Output ON Turn left ON
61 G/Y Turn signal (right) Output ON Turn right ON
62 R/W Step lamp LH and RH Output OFF ON (any door open)
0V
OFF (all doors closed) Battery voltage
63 L Interior room/map
lamp Output OFFAny door
switchON (open)
0V
OFF (closed) Battery voltage
65 V All door lock actuators
(lock) Output OFFOFF (neutral)
0V
ON (lock) Battery voltage
66 G/Y Front door lock actua-
tor RH, rear door lock
actuators LH/RH and
back door lock actua-
tor (unlock) Output OFF
OFF (neutral)
0V
ON (unlock) Battery voltage
67 B Ground Input ON—0V
68 W/L Power window power
supply (RAP) Output —Ignition switch ON
Battery voltage
Within 45 seconds after igni-
tion switch OFF Battery voltage
More than 45 seconds after ig-
nition switch OFF 0V
When front door LH or RH is
open or power window timer
operates 0V
69 W/R Power window power
supply
Output —
—Battery voltage
70 W/B Battery power supply Input OFF —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
SKIA3009J
SKIA3009J
Revision: December 20092009 QX56

DLK-194
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR CONTROL UNIT
15 O/L Open switch signal
While fully closing back door
17 GR Glass hatch ajar signal Glass hatch OPEN
0
Glass hatch CLOSED 5
18 GR/R Park switch P or N position (Ignition is ON)
0
Other (Ignition is ON) 9
19 BR/B Pinch strip RH Detecting obstruction
0
Other 5
20 V/G Pinch strip LH Detecting obstruction
0
Other 5
21 W/V Power window serial link —
22 BR Half switch signal Back door half latch position
23 L/W Power liftgate switch ON
0
OFF Battery voltage
26 V Outside handle signal Back door handle switch (at rest)
Battery voltage
Back door handle switch (open) 0
Te r m i n a l
Wire Col-
or Item
Condition Voltage (V)
(Approx.)
WIIA1047E
PIIA2344E
PIIA2169E
Revision: December 20092009 QX56

DOOR LOCK FUNCTION SYMPTOMSDLK-207
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
DOOR LOCK FUNCTION SYMPTOMS
DOOR LOCK AND UNLOCK SWITCH
DOOR LOCK AND UNLOCK SWITCH : Symptom TableINFOID:0000000003775834
DOOR LOCK/UNLOCK FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the follo wing table, check “WORK FLOW”. Refer to DLK-6, "
Work Flow".
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms are detec ted, check systems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-III.
• Ignition switch is not depressed.
• All doors are closed.
Symptom Diagnosis/service procedureReference page
Power door lock does not operate with door lock
and unlock switch. 1. Check BCM Power supply and ground circuit.
BCS-32
2. Check door lock and unlock switch. DLK-74
3. Check door lock actuator (driver side)DLK-86
4. Check Intermittent Incident. GI-38
Power door lock does not operate with door key
cylinder operation.
(Power door lock operate properly with door lock
and unlock switch.)1. Check key cylinder switch.
DLK-79
2. Replace power window main switch.PWC-117
Specific door lock actuator does not operate.1a. Check driver side door lock actuator.
DLK-86
1b. Check passenger side door lock actuator.DLK-87
1c. Check rear LH side door lock actuator.DLK-88
1d. Check rear RH side door lock actuator.DLK-90
1e. Check back door lock operation (refer to back door).DLK-210
1f. Check glass hatch lock actuator. DLK-92
2. Check Intermittent Incident. GI-38
Door lock/unlock do not operate by request switch.1. Door switch check.
DLK-712. Ignition knob switch check.DLK-116
3. Replace Intelligent Key unit.SEC-111
Door lock/unlock does not operate by request
switch (LH side).1. Front door request switch LH check.
DLK-832. Front outside antenna LH check.DLK-97
3. Replace Intelligent Key unit.SEC-111
Door lock/unlock does not operate by request
switch (RH side).1. Front door request switch RH check.
DLK-832. Front outside antenna RH check.DLK-97
3. Replace Intelligent Key unit.SEC-111
Selective unlock function does not operate by front
door request switch LH (other door lock functions
operate properly).1.
Check “SELECT UNLOCK FUNCTION” setting in “WORK
SUPPORT”.
DLK-56
2. Replace Intelligent Key unit.
SEC-111
Revision: December 20092009 QX56

DOOR LOCK FUNCTION SYMPTOMSDLK-209
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
Auto lock function does not operate properly. 1. Check “AUTO RELOCK TIMER” setting in “WORK SUPPORT”.
DLK-56
2. Key switch check (BCM).DLK-115
3. Ignition knob switch check.DLK-116
4. Door switch check. DLK-71
5. Replace Intelligent Key unit.SEC-111
Key reminder function does not operate properly.1.
Check “ANTI KEY LOCK IN FUNCTION” setting in “WORK
SUPPORT”.
DLK-56
2. Door switch check.
DLK-71
3a. Inside key antenna 1 (rear of center console) check.DLK-60
3b. Inside key antenna 2 (luggage compartment) check.DLK-62
3c. Inside key antenna 3 (front of center console) check.DLK-64
3d. Inside key antenna 4 (overhead console area) check.DLK-66
4. Front door lock actuator LH (door unlock sensor) check.DLK-81
5. Intelligent Key battery inspection.DLK-106
6. Replace Intelligent Key unit. SEC-111
Panic alarm function does not operate properly.1. Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.
DLK-56
2. Theft warning operation check.DLK-212
3. Intelligent Key battery inspection.DLK-106
4. Key switch check (BCM). DLK-115
5. Ignition knob switch check.DLK-116
6. Replace Intelligent Key unit.SEC-111
Back door open function does not operate prop-
erly.1. Back door diagnosis.
DLK-1232. Intelligent Key battery inspection.DLK-106
3. Replace Intelligent Key unit. SEC-111
Power window down function does not operate.1. Check “PW DOWN SET” setti
ng in “WORK SUPPORT”. DLK-562. Intelligent Key battery inspection. DLK-106
SymptomDiagnosis/service procedureReference
page
Revision: December 20092009 QX56

DLK-210
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
BACK DOOR OPENER FUNCTION
BACK DOOR OPENER SWITCH
BACK DOOR OPENER SWITCH : Symptom TableINFOID:0000000003775836
TRUNK OPEN FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to
DLK-6, "
Work Flow".
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column in this order.
Conditions of Vehicle (Operating Conditions)
• Vehicle is in park.
BACK DOOR HANDLE
Symptom Suspect systemsRefer to
Automatic operations are not executed from the back door fully
closed or fully open position.
(Auto closure operates normally). Power liftgate switch system inspection
DLK-141
Park switch —
Power window serial link —
Pinch strip system inspection DLK-133
Automatic operations are not carried out together with open/close
operations.
(Manual operations are normal). Power liftgate switch system inspection
DLK-141Back door close switch system inspectionDLK-137
Auto back door power supply and ground cir-
cuit system inspection. DLK-69
The auto closure function does not operate.
(Stops at the halfway position for auto closing operations).
Pinch strip system inspection
DLK-133
During auto closing operations, if obstruction is detected, the door
does not operate in reverse. Back door motor assembly
DLK-243
During close or cinch operations, the door does not operate in re-
verse if the back door handle is operated. Handle switch system
DLK-140
When the keyfob is operated, the back door does not operate au-
tomatically. Remote keyless entry system inspection
DLK-103Power window serial link —
Pinch strip system inspection DLK-133
Auto closure does not operate. Half-latch switch system
DLK-135Cinch latch motor systemDLK-139
Handle switch systemDLK-140
The back door does not open.
(Closure motor rotation is not reversed). Open switch system
DLK-136
Handle switch systemDLK-140
Warning chime does not sound. Back door warning chime systemDLK-134
Auto closure operation works, but the back door is not fully closed Close switch system
DLK-137
Handle switch systemDLK-140
Cinch latch motor systemDLK-139
Back door latch assembly mechanism dam-
aged or worn.DLK-243
Auto open operation releases lock, but does not fully open back
door. Glass hatch ajar switch check
DLK-129
Glass hatch lock actuator does not operate
(Right front door must be unlocked for normal operation) Glass hatch switch check
DLK-127Glass hatch lock actuator check DLK-92
Replace BCMBCS-56
Revision: December 20092009 QX56

WARNING FUNCTION SYMPTOMSDLK-213
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
Take away warning
does not operate. Door open to close
1. Check door switch.
DLK-71
2. Check inside key antennas (1, 2, 3, 4).Rear of center console
DLK-60Luggage compartmentDLK-62
Front of center consoleDLK-64
Overhead console areaDLK-66
3. Check Intelligent Key warning buzzer. DLK-95
4. Check warning chime function.D L K - 111
5. Check ignition knob switch.DLK-116
6. Check combination meter display function.DLK-110
7. Check Intermittent Incident. GI-38
Push-button igni-
tion switch opera-
tion1. Check ignition knob switch.
DLK-1162. Check inside key antennas (1, 2, 3, 4).Rear of center console
DLK-60Luggage compartmentDLK-62
Front of center consoleDLK-64
Overhead console areaDLK-66
3. Check warning chime function. D L K - 111
4. Check combination meter display function.DLK-110
5. Check Intermittent Incident. GI-38
Door is open1. Check ignition knob switch.
DLK-1162. Check inside key antennas (1, 2, 3, 4).Rear of center console
DLK-60Luggage compartmentDLK-62
Front of center consoleDLK-64
Overhead console areaDLK-66
3. Check combination meter display function. DLK-110
4. Check Intermittent Incident. GI-38
Take away through
window1.
Check “TAKE OUT FROM WIN WARN” setting in “WORK SUP-
PORT”.
DLK-56
2. Check inside key antennas (1, 2, 3, 4).Rear of center console
DLK-60Luggage compartmentDLK-62
Front of center consoleDLK-64
Overhead console areaDLK-66
3. Check warning chime function. D L K - 111
4. Check ignition knob switch.DLK-116
5. Check combination meter display function.DLK-110
6. Check Intermittent Incident. GI-38
Key warning chime does not operate.1. Check door switch.
DLK-71
2. Check warning chime function.D L K - 111
3. Check ignition knob switch.DLK-116
4. Check combination meter display function.DLK-110
5. Check Intermittent Incident. GI-38
SymptomDiagnosis/service procedure Reference
page
Revision: December 20092009 QX56

DOOR
DLK-235
< ON-VEHICLE REPAIR > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
1. Adjust the striker so that it becomes parallel with the lock inser- tion direction.
Removal and InstallationINFOID:0000000003775856
FRONT DOOR
Removal
CAUTION:
• When removing and instal ling the door assembly, support the door with a jack and shop cloth to pro-
tect the door and body.
• When removing and installing door assembly, be sure to carry out the fitting adjustment.
• Check the hinge rotating part for poor lubrication. If necessary, apply "body grease".
1. Remove the door window and module assembly. Refer to GW-15, "
Removal and Installation".
2. Remove the door harness.
3. Remove the check link cover.
4. Remove the check link bolt from the hinge pillar.
5. Remove the door-side hinge nuts and bolts, and remove the door assembly.
Installation
Installation is in the reverse order of removal.
REAR DOOR
Removal
CAUTION:
• When removing and instal ling the door assembly, support the door with a jack and shop cloth to pro-
tect the door and body.
• When removing and installing door assembly, be sure to carry out the fitting adjustment.
• Check the hinge rotating part for poor lubrication. If necessary, apply "body grease".
LIIA1502E
LIIA1503E
LIIA1504E
Revision: December 20092009 QX56

DLK-236
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
DOOR
1. Remove the door window and module assembly. Refer to
GW-19, "Removal and Installation".
2. Remove the door harness.
3. Remove the check link cover.
4. Remove the check link bolt from the hinge pillar.
5. Remove the door-side hinge nuts and bolts, and remove the door assembly.
Installation
Installation is in the reverse order of removal.
BACK DOOR
Removal
WARNING:
Always support back door when re moving or replacing back door stays. Power back door opener will
not support back door with back door stays removed.
1. Remove the back door glass. Refer to GW-13, "
Removal and Installation".
2. Remove the back door lock assembly. Refer to DLK-244, "
Door Lock Assembly".
3. Remove the rear wiper motor. Refer to WW-81, "
Rear Wiper Motor".
4. Remove the back door wire harness.
LIIA1503E
LIIA1504E
AWKIA1528GB
A. 15.2 Nm (1.6 Kg-m, 11 ft-lb) B. 17.0 Nm (1.7 Kg-m, 13 ft-lb)
Revision: December 20092009 QX56