door lock INFINITI QX4 2005 Factory Manual PDF

AUTOMATIC BACK DOOR SYSTEM
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Auto Back Door Operation Enable Conditions
Control When Operating Enable Conditions Not Met During Power Open/Close
Control When Operating Enable Conditions No Longer Met
Operation Power liftgate switch Remote keyless entry Back door handle switchBack door
close switch
Operating
directionFully closed →
openFully open →
closedFully closed →
openFully open
→ closedFully closed →
openFully open →
closedFully open →
closed
Close
switchCANCEL or NEUTRAL NEUTRAL NEUTRAL
Vehicle stop
conditionA/T selector
lever in P or N
range and vehi-
cle speed less
than 2 km/h or
ignition switch
in OFF position—A/T selector
lever in P or N
range and vehi-
cle speed less
than 2 km/h or
ignition switch
in OFF position—A/T selector
lever in P or N
range and vehi-
cle speed less
than 2 km/h or
ignition switch
in OFF position——
Battery volt-
ageApprox. 11V or more
Back door
lock status— — — — Unlocked — —
Glass hatch Closed
Items Operation condition Not met case Control
A/T selector lever P positionP or N position with ignition ON
or any position with ignition
OFFOtherContinue power open or close,
but sounds warning chime.
Back door close switch NEUTRAL CANCEL
Cancels power open/close
operation or door will release to
manual mode. Voltage drop 11V or more11 > V > 9
9 > V > reset voltage
reset voltage > V No power function available
Handle switch Normal (GND) Error (OPEN)No operation. Cancel power
open/close release to manual.
Glass hatch Closed OFFCancels power door open oper-
ation, door will release to man-
ual mode.
Description Operation Control
Back door close switch turned to CANCELWarning chime active
→ Shift to manual mode after full open or
close operation is complete
(Recovery to power mode when main
switch turned OFF or door fully closed)→ Shift to manual mode
A/T selector lever P or N position with igni-
tion switch ONWarning chime active and one-way opera-
tion continuous
(Warning chime inactive and door fully
open or fully closed or operating conditions
recovered)Full open: power close operation allowed
Full close: operating conditions not met →
no power open function.
Voltage drop 11 - 9VOne-way operation continued (equivalent
to the case of starting voltage ← 11V for
handle operation with warning chime
active)Not allowed
Voltage drop less than 9V
(Microcomputer reset voltage - clutch hold
voltage)

Motor stopped

Clutch may slip

Control not possible because microcom-
puter being resetControl not possible because microcom-
puter being reset

AUTOMATIC BACK DOOR SYSTEM
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Trouble Diagnosis ProcedureEIS008R9
1. Check the trouble symptom and customer's requests.
2. Understand outline of system. Refer to BL-45, "
System Description" .
3. Confirm system operation.
4. Perform self-diagnosis procedures. Refer to BL-113, "
Self-Diagnosis Procedures" .
5. Refer to diagnosis chart by symptom, repair or replace any malfunctioning parts. Refer to BL-114, "
Diag-
nosis Chart" .
6. Inspection End.
Self-Diagnosis ProceduresEIS008RA
INPUT SIGNAL CHECK MODE
Input signal check mode allows testing of switch input signal to the back door control unit.
To activate input signal check mode on the automatic back door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T selector lever in P position.
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. While the assistant continues to hold the back door handle switch, turn ignition switch ON (DO NOT start
engine).
7. After approximately 5 seconds, the back door warning chime will sound for 0.5 seconds.
8. Release the back door handle switch.
9. Within 8 seconds of the back door warning chime sounding, press and hold the power liftgate switch.
10. After approximately 5 seconds, the back door warning chime will sound for 1 second.
11. Release the power liftgate switch.
12. The input signal check mode is now initialized.
The input signal check mode can test the following inputs. The back door warning chime will sound for approx-
imately 0.5 seconds each time a switch signal input occurs. Use this test when one of these inputs is not
responding during normal automatic back door operation.
*Back door warning chime should sound as soon as vehicle moves.
Turn ignition switch OFF to end input signal check mode.
OPERATING CHECK MODE
Operating check mode allows self-diagnosis of the automatic back door system.
To activate operating check mode on the automatic back door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T selector lever in P position.
Switch signal Operation Refer to
Power liftgate switch OFF → ONBL-116
Back door close switch (CLOSE) OFF → ONBL-118
Back door close switch (CANCEL) OFF → ONBL-119
Back door handle switch OFF → ONBL-125
Glass switch OFF → ONBL-117
A/T device (park switch) P position → other than P positionAT-6 0
Vehicle speed* Vehicle speed —
Remote keyless entry signal Keyfob switch OFF → ONBL-44
Door lock/unlock signal LOCK → UNLOCKBL-16
Pinch strip LH signal OFF → ONBL-121
Pinch strip RH signal OFF → ONBL-121

BL-128
DOOR
Revision: October 20052005 QX56
DOORPFP:80100
Fitting AdjustmentEIS008RN
FRONT DOOR
Longitudinal clearance and surface height adjustment at front end
1. Remove the fender. Refer to EI-20, "FRONT FENDER" .
2. Loosen the hinge bolts. Raise the front door at rear end to adjust.
3. Install the fender. Refer to EI-20, "
FRONT FENDER" .
REAR DOOR
Longitudinal clearance and surface height adjustment at front end
1. Loosen the bolts. Open the rear door, and raise the rear door at rear end to adjust.
STRIKER ADJUSTMENT
1. Adjust the striker so that it becomes parallel with the lock inser-
tion direction.
A. 4.5 ± 1.0 mm (0.177 ± 0.039 in)
WIIA0901E
LIIA1502E

BL-130
DOOR
Revision: October 20052005 QX56
5. Remove the door-side hinge nuts and bolts, and remove the
door assembly.
Installation is in the reverse order of removal.
BACK DOOR
WAR NIN G:
Always support back door when removing 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, "
REAR WINDOW GLASS AND MOLDING" .
2. Remove the back door lock assembly. Refer to BL-135, "
BACK DOOR LOCK" .
3. Remove the rear wiper motor. Refer to WW-53, "
Removal and Installation of Rear Wiper Motor" .
4. Remove the back door wire harness.
5. Remove the rear washer nozzle and hose from the back door. Refer to WW-54, "
Removal and Installation
of Rear Washer Nozzle" .
CAUTION:
Two technicians should be used to avoid damaging the back door during removal.
6. Support the back door.
7. Disconnect the power back door lift arm from the door.
8. Remove the back door stays.
9. Remove the door side nuts and the back door assembly.
Installation is in the reverse order of removal.
LIIA1504E
WIIA0890E

FRONT DOOR LOCK
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Revision: October 20052005 QX56
FRONT DOOR LOCKPFP:80502
Component StructureEIS00629
Removal and InstallationEIS0062A
REMOVAL
1. Remove front door speaker. Refer to AV- 4 5 , “Removal and Installation of Front Door Speaker”.
2. Remove the front door speaker housing and vapor sheet.
3. Remove the door side grommet, and the bolt (TORX T30) from
the grommet hole.
4. While pulling the outside handle, remove the door key cylinder
assembly or escutcheon.
1. Grommet 2. Front door striker 3. Door lock assembly
4. Outside handle cable 5. Inside handle assembly 6. Inside handle cable
7. Door lock cable 8. Key cylinder rod (Driver side only) 9. Key cylinder
10. Outside handle bracket 11. Front gasket 12. Outside handle
13. Door key cylinder assembly (Driver
side) Outside handle escutcheon
(Passenger side)14. Rear gasket
WIIA0891E
Torx bolt 5.3 N·m (0.54 kg-m, 47 in-lb)
PIIA3553E
PIIA3554E

BL-132
FRONT DOOR LOCK
Revision: October 20052005 QX56
5. Separate the key cylinder rod from the door key cylinder assembly (if equipped).
6. While pulling the outside handle, slide it toward rear of vehicle to
remove.
7. Remove the front and rear gaskets.
8. Remove the TORX bolts (T30), and the door lock assembly.
9. While pulling the outside handle bracket, slide it toward the rear
of vehicle to remove it and the door lock assembly.
10. Disconnect the door lock actuator electrical connector.
LIIA0532E
PIIA3557E
Door lock assembly bolts 7.5 N·m (0.77 kg-m, 00 in-lb)
PIIA1090E
PIIA3558E

FRONT DOOR LOCK
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11. Separate the outside handle cable connection from the outside
handle bracket.
INSTALLATION
Installation in the reverse order of removal.
CAUTION:
To install each rod, be sure to rotate the rod holder until a click is felt.
Disassembly and AssemblyEIS008RR
DOOR KEY CYLINDER ASSEMBLY
Remove the key cylinder escutcheon pawl and remove the door key cylinder.
PIIA5059E
PIIA4136E

BL-134
REAR DOOR LOCK
Revision: October 20052005 QX56
REAR DOOR LOCKPFP:82502
Component StructureEIS008RS
Removal and InstallationEIS008RT
REMOVAL
1. Remove the rear door window and rear door module assembly. Refer to GW-71, "REAR DOOR GLASS
AND REGULATOR" .
2. Remove door grommets, and remove outside handle nuts from grommet hole.
3. Remove outside handle.
4. Disconnect the door lock actuator connector.
5. Separate outside handle rod connection.
INSTALLATION
Installation is in the reverse order of removal.
WIIA0892E

BACK DOOR LOCK
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Revision: October 20052005 QX56
BACK DOOR LOCKPFP:90504
Power Back Door OpenerEIS008RU
REMOVAL
1. Remove the LH luggage side upper. Refer to EI-40, "LUGGAGE FLOOR TRIM" .
2. Disconnect the power back door motor electrical connector.
3. Disconnect the ball socket from the back door.
4. Remove the power back door motor assembly.
INSTALLATION
Installation is in the reverse order of removal.
WIIA0893E

BL-136
BACK DOOR LOCK
Revision: October 20052005 QX56
Door Lock AssemblyEIS008RV
REMOVAL
1. Remove the lower back door trim panel. Refer to EI-42, "BACK DOOR TRIM" .
2. Remove the weathershields.
3. Disconnect the back door lock electrical connectors.
4. Remove the back door lock assembly.
5. Disconnect the back door glass lock electrical connector.
6. Remove the back door glass lock.
INSTALLATION
Installation is in the reverse order of removal.
WIIA0894E