Infiniti QX56 (Z62). Manual - part 292

DAS

NO FORCE GENERATED FOR PUTTING BACK THE ACCELERATOR PEDAL

DAS-205

< SYMPTOM DIAGNOSIS >

[DCA]

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NO FORCE GENERATED FOR PUTTING BACK THE ACCELERATOR
PEDAL

Description

INFOID:0000000006223659

The dynamic driver assistance switch can be turned ON/OFF but the actuation force of accelerator pedal is
not generated.
NOTE:
• When the vehicle ahead detection indicator does not illuminate, the control and warning with the system are

not performed. 

• The actuation force of accelerator pedal may not be generated sufficiently depending on depressing method

or depressing amount of accelerator pedal. 

Diagnosis Procedure

INFOID:0000000006223660

1.

PERFORM THE SELF-DIAGNOSIS

1.

Perform “All DTC Reading” with CONSULT-III. 

2.

Check if any DTC is detected in self-diagnosis results of “ICC/ADAS” or “ACCELE PEDAL ACT“. 

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace malfunctioning parts. Refer to 

DAS-100, "DTC Index"

 (ICC/ADAS) or 

DAS-108, "DTC Index"

(ACCELE PEDAL ACT). 

>> GO TO 5.

3.

PERFORM ACTIVE TEST

Check if the accelerator pedal actuator operates by the active test items “ACCELERATOR PEDAL ACTUA-
TOR TEST1” and “ACCELERATOR PEDAL ACTUATOR TEST2” of “ACCELE PEDAL ACT” with CONSULT-
III. 
Does it operate?

YES

>> GO TO 4.

NO

>> Replace the accelerator pedal assembly. 

4.

CHECK VEHICLE AHEAD DETECTION PERFORMANCE

Understand the vehicle ahead detection condition when the malfunction occurred. If the detecting function is
malfunctioning, check according to 

DAS-206, "Description"

. 

>> INSPECTION END

5.

CHECK DCA SYSTEM

1.

Erase “self-diagnosis result”, and then perform “All DTC Reading” again after performing the action test.
(Refer to 

DAS-128, "Description"

 for action test.)

2.

Check if the DCA system is normal. 

>> INSPECTION END

DAS-206

< SYMPTOM DIAGNOSIS >

[DCA]

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS 

SHORT

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION
ZONE IS SHORT

Description

INFOID:0000000006223661

Symptom check: Detection function may become unstable under the following conditions. 
• When the reflector of vehicle ahead is broken or dirty. 
• When the vehicle is driving on a curve such as S-curve where the curvature changes. 
• When the vehicle is driving on up-and-down road or passing the peak or foot of slope or passing the break of

the inclination of hill. 

Diagnosis Procedure

INFOID:0000000006223662

1.

VISUAL CHECK (1)

Check ICC sensor body window for contamination and foreign materials. 
Do foreign materials adhere?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

WIPE OUT DIRT AND FOREIGN OBJECTS

Wipe out the contamination and/or foreign materials from the ICC sensor body window. 

>> GO TO 7.

3.

VISUAL CHECK (2)

Check ICC sensor body window for cracks and/or scratches.
Are there cracks?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

LASER BEAM AIMING ADJUSTMENT

1.

Adjust the laser beam aiming. Refer to 

CCS-72, "Description"

. 

2.

Perform action test. Refer to 

DAS-128, "Description"

. 

3.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

REPLACE ICC SENSOR

1.

Replace the ICC sensor. Refer to 

DAS-212, "Exploded View"

. 

2.

Adjust the laser beam aiming. Refer to 

CCS-72, "Description"

. 

3.

Perform action test. Refer to 

DAS-128, "Description"

. 

4.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

REPLACE ADAS CONTROL UNIT

Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

>> GO TO 7.

7.

CHECK DCA SYSTEM

1.

Erase “self-diagnosis result”, and then perform “All DTC Reading” again after performing the action test.
(Refer to 

DAS-128, "Description"

 for action test.)

2.

Check that the DCA system is normal. 

DAS

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS 

SHORT

DAS-207

< SYMPTOM DIAGNOSIS >

[DCA]

C

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A

>> INSPECTION END

DAS-208

< SYMPTOM DIAGNOSIS >

[DCA]

THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

Description

INFOID:0000000006223663

When DCA system is active, the DCA system does not perform any control even through there is a vehicle
ahead. 

Diagnosis Procedure

INFOID:0000000006223664

1.

CHECK INFORMATION DISPLAY

1.

Start the self-diagnosis mode of combination meter. Refer to 

MWI-29, "On Board Diagnosis Function"

. 

2.

Check that the segment of information display is displayed normally. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the combination meter.

2.

VISUAL CHECK (1)

Check ICC sensor body window for contamination and/or foreign materials. 
Do foreign materials adhere?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

WIPE OUT DIRT AND FOREIGN MATERIALS

Wipe out the contamination and/or foreign materials from the ICC sensor body window. 

>> GO TO 8.

4.

VISUAL CHECK (2)

Check ICC sensor body window for cracks and/or scratches. 
Are there cracks?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

LASER BEAM AIMING ADJUSTMENT

1.

Adjust the laser beam aiming. Refer to 

CCS-72, "Description"

. 

2.

Perform action test. Refer to 

DAS-128, "Description"

. 

3.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

REPLACE ICC SENSOR

1.

Replace the ICC sensor. Refer to 

DAS-212, "Exploded View"

. 

2.

Adjust the laser beam aiming. Refer to 

CCS-72, "Description"

. 

3.

Perform action test. Refer to 

DAS-128, "Description"

. 

4.

Check that the vehicle ahead detection performance improves. 

>> GO TO 7.

7.

REPLACE ADAS CONTROL UNIT

Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

>> GO TO 8.

8.

CHECK DCA SYSTEM

1.

Erase “self-diagnosis result”, and then perform “All DTC Reading” again after performing the action test.
(Refer to 

DAS-128, "Description"

 for action test.)