2005 INFINITI QX4 height

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
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Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for work ................................................ 4
PREPARATION ........................................................... 5
Special service tool .................................................. 5
Commercial Service Tool ......................................... 5
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 6
Work Flow ................................................................ 6
CUSTOMER INTERVIEW ..................................... 6
DUPLICATE THE NOISE AND TEST DRIVE ....... 7
CHECK RELATED SERVICE BULLETINS ........... 7
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 7
REPAIR THE CAUSE ........................................... 7
CONFIRM THE REPAIR ....................................... 8
Generic Squeak and Rattle Troubleshooting ........... 8
INSTRUMENT PANEL .......................................... 8
CENTER CONSOLE ............................................. 8
DOORS ................................................................. 8
TRUNK .................................................................. 9
SUNROOF/HEADLINING ..................................... 9
OVERHEAD CONSOLE (FRONT AND REAR) ..... 9
SEATS ................................................................... 9
UNDERHOOD ....................................................... 9
Diagnostic Worksheet ............................................ 10
HOOD ....................................................................... 12
Fitting Adjustment .................................................. 12
CLEARANCE AND SURFACE HEIGHT
ADJUSTMENT .................................................... 13
HOOD LOCK ADJUSTMENT ............................. 13
Removal and Installation of Hood Assembly .......... 13
Removal and Installation of Hood Lock Control ..... 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
Hood Lock Control Inspection ................................ 15
POWER DOOR LOCK SYSTEM .............................. 16
Component Parts and Harness Connector Location ... 16
System Description ................................................ 17OUTLINE ............................................................. 18
Schematic ............................................................... 19
Wiring Diagram — D/LOCK — ............................... 20
Terminals and Reference Value for BCM ............... 25
Work Flow ............................................................... 25
CONSULT–II Function (BCM) ................................ 26
CONSULT–II INSPECTION PROCEDURE ......... 26
DATA MONITOR ................................................. 27
ACTIVE TEST ..................................................... 28
Trouble Diagnoses Symptom Chart ....................... 29
BCM Power Supply and Ground Circuit Check ...... 29
Door Switch Check ................................................. 31
Key Switch (Insert) Check ...................................... 33
Door Lock/Unlock Switch Check ............................ 34
Glass Hatch Switch Circuit Inspection .................... 36
Front Door Lock Assembly LH (Actuator) Check .... 38
Front Door Lock Actuator RH Check ...................... 39
Rear Door Lock Actuator RH/LH Check ................. 40
Glass Hatch Lock Actuator Check .......................... 41
Front Door Lock Assembly LH (Key Cylinder Switch)
Check ..................................................................... 42
REMOTE KEYLESS ENTRY SYSTEM ..................... 44
Component Parts and Harness Connector Location ... 44
System Description ................................................. 45
INPUTS ............................................................... 45
OPERATING PROCEDURE ................................ 46
CAN Communication System Description .............. 48
Schematic ............................................................... 49
Wiring Diagram — KEYLES — ............................... 50
............................................................................ 50
............................................................................ 51
............................................................................ 52
Terminals and Reference Value for BCM ............... 53
Terminals and Reference Value for IPDM E/R ....... 54
CONSULT-II Function (BCM) ................................. 55
CONSULT-II Inspection Procedure ......................... 55
“MULTI REMOTE ENT” ....................................... 55
CONSULT-II Application Items ............................... 56
“MULTI REMOTE ENT” ....................................... 56
Trouble Diagnosis Procedure ................................. 59

HOOD
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Revision: October 20052005 QX56
CLEARANCE AND SURFACE HEIGHT ADJUSTMENT
1. Remove the front grille. Refer to EI-17, "FRONT GRILLE" .
2. Remove the hood lock assembly and adjust the height by rotating the bumper rubber until the hood clear-
ance of hood and fender becomes 1 mm (0.04 in) lower than fitting standard dimension.
3. Temporarily tighten the hood lock, and position it by engaging it with the hood striker. Check the lock and
striker for looseness, and tighten the lock mounting bolt to the specified torque.
4. Adjust the clearance and surface height of hood and fender according to the fitting standard dimension by
rotating right and left bumper rubbers.
CAUTION:
Adjust right/left gap between hood and each part to the following specification.
5. Install the front grille. Refer to EI-17, "
FRONT GRILLE" .
HOOD LOCK ADJUSTMENT
1. Remove the front grille. Refer to EI-17, "FRONT GRILLE" .
2. Move the hood lock to the left or right so that striker center is vertically aligned with hood lock center
(when viewed from vehicle front).
3. Make sure the secondary latch is properly engaged with the sec-
ondary striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height or by pressing it lightly approx.
3 kg (29 N, 7lb).
CAUTION:
Do not drop the hood from 300 mm (11.81 in) height or
higher.
4. After adjusting hood lock, tighten the lock bolts.
5. Install the front grille. Refer to EI-17, "
FRONT GRILLE" .
Removal and Installation of Hood AssemblyEIS008PB
1. Support the hood striker with proper material to prevent it from
falling.
WAR NIN G:
Body injury may occur if no supporting rod is holding the
hood open when removing the damper stay.
2. Remove the hinge nuts from the hood to remove the hood
assembly.
CAUTION:
Operate with two workers, because of its heavy weight.
Installation is in the reverse order of removal.Hood and headlamp (B–B) : Less than 2.0 mm
PIIA3806E
LIIA1443E

HOOD
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Revision: October 20052005 QX56
INSTALLATION
1. Pull the hood lock cable through the dash lower hole into the engine room.
Be careful not to bend the cable too much, keeping the radius
100mm (3.94 in) or more.
2. Make sure the cable is not offset from the positioning grommet,
and push the grommet into the dash lower hole securely.
3. Apply sealant around the grommet at * mark.
4. Install the primary and secondary cables securely to the hood
lock.
5. Install the hood lock and the secondary hood lock release
assemblies.
6. Check the hood lock adjustment and hood opener operation.
Refer to BL-12, "
Fitting Adjustment" .
Hood Lock Control InspectionEIS008PD
CAUTION:
If the hood lock cable is bent or deformed, replace it.
1. Remove the front grille. Refer to EI-17, "
FRONT GRILLE" .
2. Make sure the secondary latch is properly engaged with the sec-
ondary striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height.
3. While operating the hood opener, carefully make sure the front
end of the hood is raised by approx. 20 mm (0.79 in). Also make
sure the hood opener returns to the original position.
4. Check the hood lock lubrication condition. If necessary, apply
“body grease” to the points shown in the figure.
5. Install the front grille. Refer to EI-17, "
FRONT GRILLE" .
PIIA0173E
PIIA0174E
PIIA1086E
PIIA0176E

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

BR-6
BRAKE PEDAL
Revision: October 20052005 QX56
BRAKE PEDALPFP:46501
Inspection and Adjustment EFS004W0
INSPECTION
1. Inspect the brake pedal free height "H" from dash lower.
2. Adjust the height referring to the following specifications.
CAUTION:
The adjustable pedal must be in the forwardmost (closest to
the floor) position for pedal height measurement.
Brake Pedal Specifications
Unit: mm (in)
ADJUSTMENT
1. Loosen the stop lamp switch and ASCD switch by turning 45° counterclockwise.
WFIA0160E
Free height "H" : 182.3 - 192.3 (7.18 - 7.57)
Depressed pedal height "D" [under a force of 490 N (50 kg, 110 lb) with engine
running]: More than 90.3 (3.55)
Clearance between pedal stopper and threaded end of stop lamp switch and
ASCD switch "C
1 or C2 ": 0.74 - 1.96 mm (0.029 - 0.077 in)
Pedal play "A" : 3 - 11 mm (0.12 - 0.43 in)

BRAKE PEDAL
BR-7
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Revision: October 20052005 QX56
2. Loosen lock nut on the input rod, then turn input rod to adjust the
pedal to specified height. When finished adjusting, tighten lock
nut.
CAUTION:
Make sure that the screw portion of the end of input rod is
located inside the clevis.
3. With the pedal pulled up and held by hand, press the stop lamp
switch and the ASCD switch in until threaded ends contact pedal
arm.
4. With the threaded ends of the stop lamp switch and ASCD
switch contacting the pedal arm, turn the switches 45° clockwise
to lock in place.
CAUTION:
Make sure that the gap (C) between the rubber stops and
switch ends are within specification.
5. Check the pedal play.
CAUTION:
Make sure that the stop lamp goes off when the pedal is
released.
6. Start the engine and check the height of the brake pedal when
depressing it.
Removal and Installation EFS004W1
Lock nut : 18.5 N·m (1.9 kg-m, 14 ft-lb)
PFIA0436E
WFIA0232E

BR-18
BRAKE BOOSTER
Revision: October 20052005 QX56
6. Connect active boost and delta stroke sensor harness connectors to brake booster assembly.
7. Connect vacuum hose to brake booster.
8. Install master cylinder to booster assembly. Refer to BR-17, "
Removal and Installation" .
9. Adjust the height and play of brake pedal.
10. Tighten lock nut of input rod to the specified torque.
11. Install engine air duct assembly. Refer to EM-14, "
Removal and Installation" .
12. Install engine room cover with power tool. Refer to EM-11, "
Removal and Installation" .
13. Refill with new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake System" .

SERVICE DATA AND SPECIFICATIONS (SDS)
BR-31
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Revision: October 20052005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEF S0 04 WQ
Unit: mm (in)
Brake PedalEFS004WR
Brake BoosterEFS004WS
Check ValveEFS004WT
Front Disc BrakeEFS004WU
Front brake Brake model CLZ31VC
Rotor outer diameter × thickness 320 × 26 (12.60 × 1.02)
Pad Length × width × th i c k n e s s 111 . 0 × 73.5 × 9.5 (4.73 × 2.894 × 0.374)
Cylinder bore diameter 51 (2.01)
Rear brake Brake model AD14VE
Rotor outer diameter × thickness 320 × 14 (12.60 × 0.55)
Pad Length × width × thickness 83.0 × 33.0 × 8.5 (3.268 × 1.299 × 0.335)
Cylinder bore diameter 48 (1.89)
Control valve Valve model Electric brake force distribution
Brake booster Booster model C215T
Diaphragm diameter 215 (8.46)
Recommended brake fluid Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent
Brake pedal height (from dash lower panel top surface) 182.3 − 192.3 mm (7.18 − 7.57 in)
Depressed pedal height [under a force of 490 N (50 kg, 110 lb)
with engine running]More than 90.3 mm (3.55 in)
Clearance between stopper rubber and the threaded end of stop
lamp switch 0.74 − 1.96 mm (0.029 − 0.077 in)
Pedal play3 − 11 mm (0.12 − 0.43 in)
Output rod installation standard dimension 15.6 − 15.9 mm (0.614 − 0.626 in)
Vacuum leakage
[at vacuum of – 66.7 kPa(– 500 mmHg, – 19.69 inHg)]Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds
Brake modelCLZ31VC
Brake padStandard thickness (new) 11.88 mm (0.468 in)
Repair limit thickness 1.0 mm (0.039 in)
Disc rotorStandard thickness (new) 26.0 mm (1.024 in)
Repair limit thickness 24.5 mm (0.965 in)
Maximum uneven wear (measured at 8 positions) 0.015mm (0.0006 in)
Runout limit (with it attached to the vehicle) 0.04 mm (0.0016 in)