INFINITI QX56 2011 Factory Service Manual

CCS-66
< WIRING DIAGRAM >[ICC]
INTELLIGENT CRUISE CONTROL
JCOWM0349GB
Revision: 2010 May2011 QX56

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INTELLIGENT CRUISE CONTROLCCS-67
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JCOWM0350GB
Revision: 2010 May2011 QX56

CCS-68
< WIRING DIAGRAM >[ICC]
INTELLIGENT CRUISE CONTROL
JCOWM0351GB
Revision: 2010 May2011 QX56

CCS
DIAGNOSIS AND REPAIR WORK FLOWCCS-69
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000006224290
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
It is also important to clarify t he customer concerns before starting t he inspection. Interview the customer
about the concerns carefully and understand the symptoms fully.
JPOIA0171GB
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CCS-70
< BASIC INSPECTION >[ICC]
DIAGNOSIS AND REPAIR WORK FLOW
NOTE:
The customers are not professionals. Never assume t
hat “maybe the customer means···” or “maybe the cus-
tomer mentioned this symptom”.
>> GO TO 2.
2.SELF-DIAGNOSIS WITH CONSULT-III
1. Perform “All DTC Reading” with CONSULT-III.
2. Check if any DTC is detected in self-d iagnosis results of “ICC/ADAS” and “LASER”.
Is any DTC detected?
YES >> GO TO 5.
NO >> GO TO 3.
3.ACTION TEST
Perform the ICC system action test to check the operation status. Refer to CCS-77, "
Description".
Check if any other malfunctions occur.
>> GO TO 4.
4.SYMPTOM DIAGNOSIS
Perform the applicable diagnosis according to the diagnosis chart by symptom. Refer to CCS-160, "
Symptom
Table".
>> GO TO 6.
5.TROUBLE DIAGNOSIS BY DTC
1. Check the DTC in the self-diagnosis results.
2. Perform trouble diagnosis for the detected DTC. Refer to CCS-50, "
DTC Index" (ICC/ADAS) or CCS-55,
"DTC Index" (LASER).
NOTE:
If “DTC: U1000” is detected, first diagnose the CA N communication system or ITS communication system.
>> GO TO 6.
6.MALFUNCTIONING PART REPAIR
Repair or replace the identified malfunctioning parts.
>> GO TO 7.
7.REPAIR CHECK (SELF-DIAG NOSIS WITH CONSULT-III)
1. Erases self-diagnosis results.
2. Perform “All DTC Reading” again after repairing or replacing the malfunctioning parts.
3. Check if any DTC is detected in self-d iagnosis results of “ICC/ADAS” and “LASER”.
Is any DTC detected?
YES >> GO TO 5.
NO >> GO TO 8.
8.REPAIR CHECK (ACTION TEST)
Perform the ICC system action test. Check if the malfunction symptom is solved or no other symptoms occur.
Is there any malfunction symptom?
YES >> GO TO 4.
NO >> INSPECTION END
Revision: 2010 May2011 QX56

CCS
ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
CCS-71
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ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
DescriptionINFOID:0000000006224291
 Always perform the laser beam aiming adjustment after removing and installing or replacing the ICC sensor.
CAUTION:
The system does not operate normally unless the l aser beam aiming adjustment is performed.
Always perform it.
 Perform the ICC system action test to c heck that the ICC system operates normally.
Work ProcedureINFOID:0000000006224292
1.LASER BEAM AIMING ADJUSTMENT
Adjust the laser beam aiming. Refer to CCS-72, "
Description".
>> GO TO 2.
2.ICC SYSTEM ACTION TEST
1. Perform the ICC system action test. Refer to CCS-77, "
Description".
2. Check that the ICC system operates normally.
>> INSPECTION END
Revision: 2010 May2011 QX56

CCS-72
< BASIC INSPECTION >[ICC]
LASER BEAM AIMING ADJUSTMENT
LASER BEAM AIMING ADJUSTMENT
DescriptionINFOID:0000000006224293
OUTLINE OF LASER BEAM AIMING ADJUSTMENT
Always adjust the laser beam aiming after removing and installing or replacing the ICC sensor.
CAUTION:
The system does not operate normally
unless the laser beam aiming adjustment is performed. Always
perform it.
1. Set the ICC target board [SST: KV99110100 (J-45718)] to the correct position in front of the vehicle.
2. Set the laser beam aiming mode (“LASER BEAM AD JUST” on “Work support”) with CONSULT-III, and
then perform the adjustment according to the displa y. (Manually turn the up-down direction adjusting
screw for vertical adjustment. ICC sensor adjusts the automatic aiming for the horizontal direction.)
CAUTIONARY POINT FOR LASER BEAM AIMING ADJUSTMENT
CAUTION:
 For laser beam aiming adjustment, choose a level location where a view can be obtained without any
obstruction as far as 12 m (39 ft) or more in the forward direction.
 Adjust laser beam aiming for 5 second s or more after starting engine.
 Adjust the laser beam aiming with CONSULT-III. (The laser beam aiming cannot be adjusted without
CONSULT-III.)
 Never enter the vehicle during laser beam aiming adjustment.
 Never look directly into the laser beam sour ce (ICC sensor body window) during laser beam aiming
adjustment.
 Laser beam aiming adjustment is performed at idle. At this time, turn the headlamps OFF.
Work Procedure (Preparation)INFOID:0000000006224294
1.ADVANCE PREPARATION FOR LASER BEAM AIMING ADJUSTMENT
1. Adjust all tire pressure to the specified value.
2. Empty the vehicle. (Remove any luggage from the passenger compartment, luggage room, etc.)
3. Shift the selector lever to “P” pos ition, and release the parking brake.
4. Fully fill the fuel tank, and then check that t he coolant and oils are filled up to correct level.
5. Clean off the ICC sensor body window with a soft cloth.
>> Go to CCS-72, "
Work Procedure (Setting The ICC Tar-
get Board)".
Work Procedure (Setting The ICC Target Board)INFOID:0000000006224295
DESCRIPTION
Accurate adjustment of the laser beam requires t hat the ICC target board be accurately positioned.
CAUTION:
If the laser beam is adjusted with the ICC target board in the incorrect position, the ICC system does
not function normally.
1.ICC TARGET BOARD HEIGHT ADJUSTMENT
1 : ICC sensor
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CCS
LASER BEAM AIMING ADJUSTMENTCCS-73
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1. Attach the ruler (2) at 14 mm (0.55 in) (H) below the center (A) of\
the ICC target board (1).
2. Adjust the ICC target board height to the position aligning the ruler (1) upper side tip with the center of laser beam axis (A).
NOTE:
 The center of laser beam axis (A) is located at 38 mm (1.5 in) (W)
from the left end of ICC sensor and 22 mm (H) (0.87 in) from above
when viewed from the front of the vehicle.
 To identify the laser beam axis center (A) easily, prepare a piece of paper (B) cut to the size of 38 mm (1.5 in) (W) × 22 mm (0.87 in)
(H) and attach it on the lower left point of the ICC sensor (1).
>> GO TO 2.
2.ADJUSTING SIDE POSITION OF ICC TARGET BOARD
3: Adjust nut
b: 90 °
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2 : ICC sensor
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B : Up-down direction adjusting screw
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CCS-74
< BASIC INSPECTION >[ICC]
LASER BEAM AIMING ADJUSTMENT
Suspend a weight from a string (1) at
tached to its end at the point (B)
leftward from the ICC target board center (A).
>> GO TO 3.
3.SETTING ICC TARGET BOARD
1. Suspend a thread with weight on tip from the center of the front and rear bumpers. Then, mark the center
points on the ground as each weight point.
2. Link the front and rear bumpers center point s marked on the ground and extend a straight line ahead.
Then mark a point 3.9 m (12.8 ft) position ahead of t he front bumper. Then, adjust the position of the ICC
target board so that the weight comes on the top of the marked point [3.9 m (12.8 ft) position ahead of the
front bumper] and face to the vehicle.
3. Remove the thread suspended to the left side of I CC target board and suspend a thread with weight on tip
on the center of the ICC ta rget board. Then mark the poi nt of weight on the ground.
4. Pivot the edge of the ICC target board 25 ° (a) to either side.
NOTE:
Approx. 90 mm (3.54 in) (b) shift rates the 25 ° (a) movement.
>> GO TO 4.
4.CHECK THE ICC TARGET BOA RD INSTALLATION POSITION
Check that the ICC target board (1) is located as shown in the figure.
NOTE:
The distance between laser beam axis and I CC target board is 4.0 m (13.0 ft).
>> GO TO 5.
W [mm (in)] : 34 (1.34)
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1 : ICC target board
2 : String with a weight
C : ICC target board center marking point
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1. ICC target board 2. ICC sensor 3. Vehicle
B. Vehicle center L
1. 4.0 m (13.0 ft)
W. 34 mm (1.34 in)
a. 25 °
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CCS
LASER BEAM AIMING ADJUSTMENTCCS-75
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5.CHECK THE ICC TARGET BOARD INSTALLATION AREA
Do not place anything other than ICC target board in the space shown in the figure (view from top).
NOTE:
In case the space shown in the figure is not avail able, cover the side of the ICC target board with a 1400
mm(4.6 ft)-size frosted black board or black cloth.
>> Go to CCS-75, "
Work Procedure (Laser Beam Aiming Adjustment)".
Work Procedure (Laser B eam Aiming Adjustment)INFOID:0000000006224296
DESCRIPTION
 Adjust the laser beam aiming in a vertical di rection with CONSULT-III as per the following.
 The laser beam aiming adjustment in a horizontal dire ction is performed automatically with CONSULT-III.
CAUTION:
 Never look directly into the laser beam source (ICC sensor body window) during laser beam aiming
adjustment.
 Perform all necessary work for laser beam aiming adjustment until the adjustment completes as
shown in the procedure. If the procedure do es not complete, the ICC system is inoperable.
1.SET CONSULT-III TO THE LASER BEAM AIMING ADJUSTMENT MODE
1. Start the engine.
2. Connect CONSULT-III and select “Work support” of “LASER”.
3. Select “LASER BEAM ADJUST” after t he “Work support” screen is displayed.
4. Select “START” after the “LASER BEAM ADJUST” screen is displayed.
NOTE:
If the adjustment screen does not appear within approx imately 10 seconds after “LASER BEAM ADJUST”
is selected, the following causes are possible.
 The ICC target board is not installed in the correct position.
 Adequate space is not secured around the ICC target board.
 The laser beam aiming adjustment exceeds its proper installation range.
- Deformation of vehicle body.
- Deformation of unit.
- Deformation of bracket.
 The area is not suitable for the adjustment work.
 ICC sensor body window is not clean.
 The ICC system warning lamp illuminates.
>> GO TO 2.
2.LASER BEAM AIMING ADJUSTMENT
After “ADJUST THE VERTICAL OF LASER BEAM AIMI NG” is displayed on CONSULT-III screen, adjust by
turning the up-down direction adjusting screw until “U/D CORRECT” becomes ±4 or less.
NOTE:
1. ICC target board 2. ICC sensor
L
1.6.5 m (21.3 ft) L2. 4.0 m (13.0 ft) W. 3.5 m (11.5 ft)
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Revision: 2010 May2011 QX56