2004 INFINITI QX56 height

2004
QUICK REFERENCE CHART: QX56

Disc Brake - Repair LimitsELS000ZU
Unit: mm (in)
Brake PedalELS000ZV
Unit: mm (in)
Refill CapacitiesELS000YO
Brake model CLZ31VC (Front) AD14VE (Rear)
Brake PadStandard thickness (new) 11.88 (0.468) 12.13 (0.478)
Repair limit thickness 1.0 (0.039) 1.0 (0.039)
Disc rotor Standard thickness (new) 26.0 (1.024) 14.0 (0.551)
Repair limit thickness 24.5 (0.965) 12.0 (0.472)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.04 (0.0016) 0.05 (0.0020)
Brake pedal height (from dash lower panel top surface) 182.3
− 192.3 (7.18 − 7.57)
Depressed pedal height [under a force of 490 N (50 kg, 110 lb) with engine running] More than 90.3 (3.55)
Clearance between stopper rubber and the threaded end of stop lamp switch 0.74 − 1.96 (0.029 − 0.077)
Pedal play 3 − 11 (0.12 − 0.43)
Description Capacity (Approximate)
Metric US measure Imp measure
Fuel 105.8 28 gal 23 1/4 gal
Engine oil
Drain and refill With oil filter change
6.2 6 1/2 qt 5 1/2 qt
Without oil filter change 5.9 6 1/4 qt 5 1/4 qt
Dry engine (engine overhaul) 7.6 8 qt 6 3/4 qt
Cooling system With reservoir at MAX level 14.4 3 3/4 gal 3 1/8 gal
Automatic transmission fluid (ATF) 10.6 11 1/4 qt 9 3/8 qt
Rear final drive oil 1.75 3 3/4 pt 3 1/8 pt
Transfer fluid 3.0 3 1/8 qt 2 5/8 qt
Front final drive oil 1.6 3 3/8 pt 2 7/8 pt
Power steering fluid (PSF) 1.0 1 1/8 qt 7/8 qt
Windshield washer fluid 4.5 1 1/4 gal 1 gal
Air conditioning system refrigerant 1.08 ± 0.05 kg 2.38 ± 0.11 lb 2.38 ± 0.11 lb
Air conditioning system lubricants 290 m9.8 fl oz 10.2 fl oz

ACS-1
AUTO CRUISE CONTROL SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION ACS
A
B
ACS
Revision: August 20072004 QX56
ASCD
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ..... 3
Description ............................................................... 3
ICC
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for ICC System Service ........................ 4
Wiring Diagrams and Trouble Diagnosis .................. 4
PREPARATION ........................................................... 5
Special Service Tool ................................................. 5
DESCRIPTION ............................................................ 6
Outline ...................................................................... 6
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE ................................................................... 6
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE ................................................. 6
BRAKE ASSIST (WITH PREVIEW FUNCTION) ..... 6
System Diagram ....................................................... 7
Components Description .......................................... 7
CAN Communication ................................................ 7
SYSTEM DESCRIPTION ...................................... 7
Switch Operation ...................................................... 8
ICC System Display ................................................. 8
ACTION TEST ............................................................ 9
ICC System Running Test ........................................ 9
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE ................................................................... 9
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE ............................................... 10
LASER BEAM AIMING ADJUSTMENT ................... 12
Outline of Laser Beam Aiming Adjustment Proce-
dure ........................................................................ 12
Preparation ............................................................. 12
Setting up the ICC Target Board ............................ 12
ADJUSTING HEIGHT OF THE ICC TARGET
BOARD ............................................................... 12ADJUSTING THE POSITION OF THE ICC TAR-
GET BOARD STRING ......................................... 13
POSITIONING THE ICC TARGET BOARD ........ 13
Sensor Adjustment ................................................. 14
CHECK AFTER THE ADJUSTMENT .................. 17
ELECTRICAL UNITS LOCATION ............................ 18
Component Parts and Harness Connector Location ... 18
WIRING DIAGRAM ................................................... 19
Schematic ............................................................... 19
Wiring Diagram — ICC — ...................................... 20
TERMINALS AND REFERENCE VALUE ................. 25
Terminals and Reference Values for ICC Unit ........ 25
Terminals and Reference Values for ICC Sensor ... 25
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION .......................................................................... 26
Work Flow ............................................................... 26
CONSULT-II Function (ICC) ................................... 27
CONSULT-II OPERATION ................................... 27
WORK SUPPORT ............................................... 28
SELF-DIAGNOSTIC RESULTS ........................... 28
DATA MONITOR ................................................. 29
ACTIVE TEST ..................................................... 30
Self-Diagnostic Function ......................................... 32
WITH CONSULT-II .............................................. 32
WITHOUT CONSULT-II ....................................... 32
SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY
WILL NOT RUN ................................................... 34
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................ 36
Diagnostic Trouble Code (DTC) Chart ................... 36
DTC 11 CONTROL UNIT ....................................... 37
DTC 12 VDC CONTROL UNIT ............................... 37
DTC 20 CAN COMM CIRCUIT ............................... 38
DTC 31 POWER SUPPLY CIR 1, DTC 34 POWER
SUPPLY CIR 2 ....................................................... 38
DTC 41 VHCL SPEED SE CIRC ............................ 39
DTC 43 VDC/TCS/ABS CIRC ................................ 39
DTC 45 BRAKE SW/STOP L SW ........................... 40
DTC 46 OPERATION SW CIRC ............................. 41
DTC 74 LASER BEAM OFF CENTER ................... 42

ACS-12
[ICC]
LASER BEAM AIMING ADJUSTMENT
Revision: August 20072004 QX56
LASER BEAM AIMING ADJUSTMENTPFP:00026
Outline of Laser Beam Aiming Adjustment ProcedureEKS007TI
CAUTION:

The laser beam aiming adjustment cannot be performed without CONSULT-II.

The laser beam aiming adjustment must be performed every time the ICC sensor is removed,
installed or has been moved as a result of a collision.
1. Prepare the vehicle and the work area.
2. Set up the ICC target board.
3. Adjust the sensor following the procedure on CONSULT-II.
4. Check system operation after the adjustment.
PreparationEKS007PC

Place the vehicle on level ground. Shift the transmission into "P" position and release the parking brake.

Adjust the tire pressure to the specified value.

See that there is no load in the vehicle. Coolant, engine oil and fuel should be filled to correct level.

Check that the vehicle suspension has been adjusted to the standard height by the load leveling rear air
suspension system. Refer to RSU-12, "
Basic Inspection" .

Clean the ICC sensor with a soft cloth.
Setting up the ICC Target BoardEKS007PE
CAUTION:
Accuracy in setting up the ICC target board is essential for the laser beam aiming adjustment.
ADJUSTING HEIGHT OF THE ICC TARGET BOARD
1. Attach a triangle scale as shown.Tool number : KV99110100 (J-45718)
WKIA1848E
WKIA1849E

LASER BEAM AIMING ADJUSTMENT
ACS-13
[ICC]
C
D
E
F
G
H
I
J
L
MA
B
ACS
Revision: August 20072004 QX56
2. Adjust the height of the ICC target board stand so that the point
of the triangle aims above the center of the ICC sensor.
ADJUSTING THE POSITION OF THE ICC TARGET BOARD STRING
1. Attach a scale or straightedge [at least 350 mm (14 in) or
longer].
2. Suspend a string with a weight on the end 218 mm
(8.6 in) to the left side of the ICC target board center.
POSITIONING THE ICC TARGET BOARD
1. Suspend a string with weights on each end over the centerline of the vehicle. The string should lay over
the center of the front and back bumpers. Mark these centerpoints on the ground at each weight.
2. Connect the two center points using a string. Extend the string
an additional 5 m (16 ft) beyond the front centerpoint and mark
the floor. Position the ICC target board weight on this mark.
3. Relocate the suspended string from the left side of the ICC target board to the center of the ICC target
board. Mark this point on the ground.
WKIA2039E
SKIA1 211 E
WKIA2040E
WKIA1851E

AT-244
ON-VEHICLE SERVICE
Revision: August 20072004 QX56
13. Remove bolts A, B and C from control valve with TCM.
14. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with the manual valve notch and
manual plate height. Remove it vertically.
15. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
16. Remove bracket from A/T fluid temperature sensor 2.
17. Remove O-ring from A/T assembly harness connector.
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5139E
SCIA5142E
SCIA5301E
SCIA5264E
SCIA5155E

DISASSEMBLY
AT-281
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
36. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with transmission assembly ter-
minal connector and the manual valve notch and manual
plate height.Remove it vertically.
37. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
38. Remove bracket from A/T fluid temperature sensor 2.
39. Remove O-ring from A/T assembly harness connector.
40. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to
the following procedures.
SCIA5308E
SCIA5301E
SCIA5264E
SCIA5155E

AV-62
NAVIGATION SYSTEM
Revision: August 20072004 QX56

In map-matching, alternative routes to reach the destination will
be shown and prioritized, after the road on which the vehicle is
currently driven has been judged and the current-location mark
has been repositioned.
If there is an error in distance and/or direction, the alternative
routes will be shown in different order of priority, and the wrong
road can be avoided.
If two roads are running in parallel, they are of the same priority.
Therefore, the current-location mark may appear on either of
them alternately, depending on maneuvering of the steering
wheel and configuration of the road.

Map-matching does not function correctly when the road on
which the vehicle is driving is new and not recorded in the map
DVD-ROM, or when the road pattern stored in the map data and
the actual road pattern are different due to repair.
When driving on a road not present in the map, the map-match-
ing function may find another road and position the current-loca-
tion mark on it. Then, when the correct road is detected, the
current-location mark may leap to it.

Effective range for comparing the vehicle position and travel
direction calculated by the distance and direction with the road
data read from the map DVD-ROM is limited. Therefore, when
there is an excessive gap between the current vehicle position
and the position on the map, correction by map-matching is not possible.
GPS (GLOBAL POSITIONING SYSTEM)
GPS (Global Positioning System) has been developed and con-
trolled by the US Department of Defense. The system utilizes GPS
satellite (NAVSTAR), sending out radio waves while flying on an orbit
around the earth at the height of approx. 21,000 km (13,000 miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-
sional positioning). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), utilizing the altitude data calcu-
lated previously by using radio waves from four or more GPS satel-
lites (two-dimensional positioning).
Accuracy of the GPS will deteriorate under the following conditions.

In two-dimensional positioning, the GPS accuracy will deteriorate when the altitude of the vehicle position
changes.

There may be an error of approximately 10 m (30 ft) in position detected by three-dimensional positioning,
which is more accurate than two-dimensional positioning. The accuracy can be even lower depending on
the arrangement of the GPS satellites utilized for the positioning.

Position detection is not possible when the vehicle is in an area where radio waves from the GPS satellite
do not reach, such as in a tunnel, parking lot in a building, and under an elevated highway. Radio waves
from the GPS satellites may not be received when some object is located over the GPS antenna.

Position correction by GPS is not available while the vehicle is stopped.
SEL686V
SKIA0613E
SEL526V

AV-64
NAVIGATION SYSTEM
Revision: August 20072004 QX56

BIRDVIEW™
Description

Display area: Trapezoidal representation showing approximate
distances (Wn, D, and Wd).

Ten horizontal grid lines indicate display width while six vertical
grid lines indicate display depth and direction.

Pushing the “ZOOM IN” button during operation displays the
scale change and the view point height on the left side of the
screen.
The height of the view point increases or decreases when
“ZOOM” or “WIDE” is selected with the joystick.
MAP DISPLAY
Function of each icon is as follows:
1. Azimuth indication.
2. Position marker.
–The tip of the arrow shows the current location. The shaft of the
arrow indicates the direction in which the vehicle is traveling.
3. GPS reception signal (indicates current reception conditions).
4. Distance display (shows the distance in a reduced scale).
WKIA1949E
SKIA5613E
WKIA1950E