Infiniti QX56 (JA60). Manual - part 167

CCS-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

• Perform the ICC system action test to check the ICC system operation status. Refer to 

CCS-5, "ADDI-

TIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"

.

>> GO TO 2

2.

PERFORM SELF-DIAGNOSIS OF ICC UNIT

1. Perform self-diagnosis of ICC unit.

2. Check if DTC is detected.
Is any DTC detected?

YES

>> GO TO 3

NO

>> GO TO 4

3.

CHECK SELF-DIAGNOSIS RESULTS

1. Check the DTC detected in the self-diagnosis results.

2. Perform the relevant diagnosis by referring to the DTC index. Refer to 

CCS-56, "Diagnostic Trouble Code

(DTC) Chart"

.

NOTE:

If “CAN COMM CIRCUIT [U1000]” (DTC 20) is displayed, start with the diagnosis for the CAN communication

system. Refer to 

LAN-87, "Diagnosis Procedure"

.

>> GO TO 5

4.

DIAGNOSIS BY SYMPTOM

Referring to the diagnosis chart by symptom, perform the relevant diagnosis. Refer to 

CCS-58, "Symptom

Chart"

.

>> GO TO 5

5.

REPAIR OR REPLACE APPLICABLE ITEM

Repair or replace applicable item.

>> GO TO 6

6.

CHECK AFTER REPAIRING OR REPLACING THE APPLICABLE ITEM

1. Erase DTC.

2. Perform the self-diagnosis for the ICC unit again after repairing or replacing the applicable item. 

3. Check if DTC is detected.
Is any DTC detected?

YES

>> GO TO 3

NO

>> GO TO 7

7.

CHECK ICC SYSTEM

Test the ICC system for normal operation to see if the malfunction symptom is solved and no other symptoms

are present. 
No symptoms?

YES

>> Inspection End.

NO

>> GO TO 4

CCS

INSPECTION AND ADJUSTMENT

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000005145971

Always perform the laser beam aiming adjustment after replacing the ICC unit.  In addition, test the ICC sys-

tem operations to see if it functions normally. 

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

INFOID:0000000005145972

1.

LASER BEAM AIMING ADJUSTMENT

Adjust laser beam aiming. Refer to 

CCS-5, "LASER BEAM AIMING ADJUSTMENT : Outline of Laser Beam

Aiming Adjustment Procedure"

.

>> GO TO 2

2.

ICC SYSTEM ACTION TEST

1. Perform the ICC system operation test. Refer to 

CCS-8, "ACTION TEST : ICC System Running Test"

.

2. Check that the ICC system operates normally.

>> INSPECTION END.

LASER BEAM AIMING ADJUSTMENT
LASER BEAM AIMING ADJUSTMENT : Outline of Laser Beam Aiming Adjustment 
Procedure

INFOID:0000000005145973

CAUTION:

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

• 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. For details, refer to Technical Service Bulletin.

3. Adjust the sensor following the procedure on CONSULT-III.
4. Check system operation after the adjustment.

LASER BEAM AIMING ADJUSTMENT : Preparation

INFOID:0000000005145974

• 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 sus-

pension system. Refer to 

SCS-7, "CONSULT-III Function"

 .

• Clean the sensor with a soft cloth.

Tool number

: KV99110100 (J-45718)

LKIA0632E

CCS-6

< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

LASER BEAM AIMING ADJUSTMENT : Setting up the ICC Target Board

INFOID:0000000005145975

CAUTION:

Accuracy in setting up the ICC target board is essential for the laser beam aiming adjustment.

For details, refer to Technical Service Bulletin.

ADJUSTING HEIGHT OF THE TARGET

1. Attach a triangle scale as shown.

2. Adjust the height of the target stand so that the point of the trian-

gle aims above the center of the ICC sensor.

ADJUSTING THE POSITION OF THE 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 target board center.

POSITIONING THE TARGET

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.

WKIA1849E

WKIA2039E

SKIA1211E

WKIA2040E

CCS

INSPECTION AND ADJUSTMENT

CCS-7

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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 target board weight on this mark.

3. Relocate the suspended string from the left side of the target board to the center of the target board. Mark

this point on the ground.

4. Pivot the target board on its center mark 20

° to either side.

NOTE:

Approx. 50 mm (1.97 in) shift will produce a 20

° movement.

5. Remove any items in the shaded space shown in the figure.

NOTE:

In case the background space shown in the illustration is not available, or if the background is light col-

ored, place a 400 mm (15.75 in) long frosted black board or black cloth to both sides of the target board.

LASER BEAM AIMING ADJUSTMENT : Sensor Adjustment

INFOID:0000000005145976

CAUTION:

Never view ICC sensor unit body window directly during laser beam aiming adjustment.

NOTE:

Complete all necessary steps for laser beam adjustment until the CONSULT-III indicates "COMPLETED". If

the procedure does not complete, the ICC system is inoperable.

1.

SET CONSULT-III TO THE LASER BEAM AIMING ADJUSTMENT MODE

1. Connect CONSULT-III and select "Work Support" of "ICC".

2. Select "LASER BEAM ADJUST".

3. Touch "START".

WKIA1851E

PKIA2589E

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