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DLK-232
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FRONT DOOR LOCK
FRONT DOOR LOCK
Component StructureINFOID:0000000001542671
Removal and InstallationINFOID:0000000001542672
REMOVAL
1. Remove the front door window regulator. Refer to
GW-9, "Removal and Installation".
2. Remove the front door window rear glass run.
1. Door key cylinder assembly (Driver side) Outside handle escutcheon
(Passenger side) 2. Key cylinder assemb
ly (Driver side
only) 3. Rear gasket
4. Outside handle bracket 5. Grommet 6. Key cylinder rod (Driver side only)
7. Front door striker 8. Door lock assembly 9. Inside handle assembly
10. Inside door lock lever 11. Front gasket12. Outside handle assembly
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FRONT DOOR LOCKDLK-233
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3. Remove the door side grommet, and the bolt (TORX T30) from the grommet hole.
4. While pulling the outside handle (1), remove the door key cylin- der assembly or outside handle escutcheon (2).
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 as shown.
7. Remove the front gasket (1) and rear gasket (2). Torx bolt
5.3 N·m (0.54 kg-m, 47 in-lb)
PIIA3553E
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![INFINITI QX56 2008 Factory Service Manual DLK-234
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK
8. Remove the TORX bolts (T30) (1), and separate the door lock
assembly (2) from the door.
9. While pulling the outside handl INFINITI QX56 2008 Factory Service Manual DLK-234
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK
8. Remove the TORX bolts (T30) (1), and separate the door lock
assembly (2) from the door.
9. While pulling the outside handl](/manual-img/42/57030/w960_57030-1026.png)
DLK-234
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK
8. Remove the TORX bolts (T30) (1), and separate the door lock
assembly (2) from the door.
9. While pulling the outside handle bracket, slide it toward the front of the vehicle to remove it and the door lock assembly as shown.
10. Disconnect the door lock actuator electrical connector.
11. Separate the outside handle cable connection (1) from the out- side handle bracket.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
To install the key cylinder rod, be sure to rotate the key cylinder rod holder until a click is felt.
Disassembly and AssemblyINFOID:0000000001542673
DOOR KEY CYLINDER ASSEMBLY
Release the door key cylinder escutcheon pawls to remove the door key cylinder.Door lock assembly bolts 7.5 N·m (0.77 kg-m, 66 in-lb)
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1. Door key cylinder assembly 2. Key cylinder assembly
3. Door key cylinder escutcheon
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REAR DOOR LOCKDLK-235
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REAR DOOR LOCK
Component StructureINFOID:0000000001539092
Removal and InstallationINFOID:0000000001539093
REMOVAL
1. Remove the rear door window and rear door module assembly. Refer to GW-13, "Removal and Installa-
tion".
2. Remove door grommets, and remove outside handle nuts from grommet hole.
3. Remove outside handle.
4. Disconnect the door lock actuator connector.
5. Reach to separate outside handle rod connection.
INSTALLATION
Installation is in the reverse order of removal.
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DLK-236
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR LOCK
BACK DOOR LOCK
Power Back Door OpenerINFOID:0000000001539094
Removal
1. Remove the LH luggage side upper. Refer to
INT-19, "Removal and Installation".
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.
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BACK DOOR LOCKDLK-237
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Door Lock AssemblyINFOID:0000000001539095
Removal
1. Remove the lower back door trim panel. Refer to INT-21, "Removal and Installation".
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.
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DLN-1
TRANSMISSION & DRIVELINE
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CONTENTS
DRIVELINE
ATX14B
BASIC INSPECTION ....... .............................
6
DIAGNOSIS AND REPAIR WORKFLOW ..... .....6
Work Flow ........................................................... ......6
Preliminary Check .....................................................7
FUNCTION DIAGNOSIS ..............................10
4WD SYSTEM ................................................ ....10
System Diagram .................................................. ....10
System Description .................................................11
Component Parts Location ......................................16
CAN Communication ...............................................17
DIAGNOSIS SYSTEM (TRANSFER CON-
TROL UNIT) ........................................................
18
CONSULT-III Function (ALL MODE AWD/4WD) ....18
COMPONENT DIAGNOSIS .........................22
P1811 POWER SUPPLY CIRCUIT FOR
TRANSFER CONTROL UNIT ........................ ....
22
Description .......................................................... ....22
DTC Logic ...............................................................22
Diagnosis Procedure ...............................................22
Component Inspection ............................................23
P1802 – P1804, P1809 TRANSFER CON-
TROL UNIT .........................................................
24
Description ..............................................................24
DTC Logic ...............................................................24
Diagnosis Procedure ...............................................24
P1807 VEHICLE SPEED SENSOR (A/T) ..........26
Description .......................................................... ....26
DTC Logic ...............................................................26
Diagnosis Procedure ...............................................26
P1808 VEHICLE SPEED SENSOR (ABS) .........27
Description .......................................................... ....27
DTC Logic ............................................................ ....27
Diagnosis Procedure ...............................................27
P1810 NEUTRAL-4LO SWITCH .......................28
Description ...............................................................28
DTC Logic ................................................................28
Diagnosis Procedure ...............................................28
Component Inspection .............................................30
P1813 4WD SHIFT SWITCH .............................31
Description ...............................................................31
DTC Logic ................................................................31
Diagnosis Procedure ...............................................31
Component Inspection .............................................33
P1814 WAIT DETECTION SWITCH .................35
Description ...............................................................35
DTC Logic ................................................................35
Diagnosis Procedure ...............................................35
Component Inspection .............................................37
P1816 PNP SWITCH .........................................38
Description ...............................................................38
DTC Logic ................................................................38
Diagnosis Procedure ...............................................38
P1817 ACTUATOR MOTOR .............................39
Description ...............................................................39
DTC Logic ................................................................39
Diagnosis Procedure ...............................................39
Component Inspection .............................................43
P1818 ACTUATOR POSITION SWITCH ..........45
Description ...............................................................45
DTC Logic ................................................................45
Diagnosis Procedure ...............................................45
Component Inspection .............................................47
P1819 TRANSFER CONTROL DEVICE ...........48
Description ...............................................................48
DTC Logic ................................................................48
Diagnosis Procedure ...........................................
....48
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DLN-2
P1820 ENGINE SPEED SIGNAL ......................52
Description ........................................................... ...52
DTC Logic ...............................................................52
Diagnosis Procedure ..............................................52
P1822 CLUTCH PRESSURE SOLENOID .........53
Description ..............................................................53
DTC Logic ...............................................................53
Diagnosis Procedure ..............................................53
Component Inspection ............................................55
P1823 2-4 SOLENOID .......................................57
Description ........................................................... ...57
DTC Logic ...............................................................57
Diagnosis Procedure ..............................................57
Component Inspection ............................................60
P1824 TRANSFER MOTOR ..............................61
Description ..............................................................61
DTC Logic ...............................................................61
Diagnosis Procedure ..............................................61
Component Inspection ............................................65
P1826 TRANSFER FLUID TEMPERATURE ....67
Description ........................................................... ...67
DTC Logic ...............................................................67
Diagnosis Procedure ..............................................67
Component Inspection ............................................68
P1827 CLUTCH PRESSURE SWITCH .............70
Description ........................................................... ...70
DTC Logic ...............................................................70
Diagnosis Procedure ..............................................70
Component Inspection ............................................71
P1828 LINE PRESSURE SWITCH ....................73
Description ........................................................... ...73
DTC Logic ...............................................................73
Diagnosis Procedure ..............................................73
Component Inspection ............................................75
P1829 THROTTLE POSITION SIGNAL (ECM)
...
76
Description ........................................................... ...76
DTC Logic ...............................................................76
Diagnosis Procedure ..............................................76
P1830 ABS OPERATION SIGNAL (ABS) ........77
Description ........................................................... ...77
DTC Logic ...............................................................77
Diagnosis Procedure ..............................................77
P1831 VDC OPERATION SIGNAL (ABS) ........78
Description ........................................................... ...78
DTC Logic ...............................................................78
Diagnosis Procedure ..............................................78
P1832 TCS OPERATION SIGNAL (ABS) .........79
Description ........................................................... ...79
DTC Logic ...............................................................79
Diagnosis Procedure ..............................................79
ECU DIAGNOSIS .......................................80
TRANSFER CONTROL UNIT ...........................80
Reference Value .................................................. ...80
Wiring Diagram .......................................................88
DTC Index ...............................................................95
SYMPTOM DIAGNOSIS ...........................100
4WD SYSTEM SYMPTOMS ........................... ..100
Symptom Table .................................................... .100
4WD SHIFT INDICATOR LAMP AND 4LO IN-
DICATOR LAMP DO NOT TURN ON ..............
101
Description ............................................................101
Diagnosis Procedure .............................................101
4WD WARNING LAMP DOES NOT TURN ON ..103
Description ........................................................... .103
Diagnosis Procedure .............................................103
4WD SHIFT INDICATOR LAMP OR 4LO INDI-
CATOR LAMP DO NOT CHANGE ...................
105
Description ........................................................... .105
Diagnosis Procedure .............................................105
ATP WARNING LAMP DOES NOT TURN ON ..107
Description ........................................................... .107
Diagnosis Procedure .............................................107
4WD SHIFT INDICATOR LAMP KEEPS
FLASHING ........................................................
109
Description ........................................................... .109
Diagnosis Procedure .............................................109
4WD WARNING LAMP FLASHES RAPIDLY ..110
Description ............................................................110
Diagnosis Procedure .............................................110
4WD WARNING LAMP FLASHES SLOWLY ..111
Description ............................................................111
Diagnosis Procedure .............................................111
HEAVY TIGHT-CORNER BRAKING SYMP-
TOM OCCURS ................................................ ..
112
Description ........................................................... .112
Diagnosis Procedure .............................................112
ATP SWITCH ....................................................114
Description ........................................................... .114
Diagnosis Procedure .............................................114
4WD SYSTEM DOES NOT OPERATE ............116
Description ........................................................... .116
Diagnosis Procedure .............................................116
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ...........................
117
NVH Troubleshooting Chart ..................................117
PRECAUTION ............... ............................118
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