Infiniti QX56 (Z62). Manual — part 291
DAS
DCA SYSTEM NOT ACTIVATED (SWITCH IS ON)
DAS-201
< SYMPTOM DIAGNOSIS >
[DCA]
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DCA SYSTEM NOT ACTIVATED (SWITCH IS ON)
Description
INFOID:0000000006223655
The dynamic driver assistance switch can be turned ON/OFF, but the DCA system does not operate.
NOTE:
Never start the operation under the following conditions.
No operation condition
• When the brake pedal depressed
• When the ICC system is set
• When the system judges that the vehicle comes to a standstill by the system control
• When the vehicle ahead is not detected
Operation cancellation condition
• When the dynamic driver assistance switch is turned to OFF
• When the system malfunction occurs
• When ABS or VDC (including the TCS) operates
• When the VDC is turned OFF
• When driving into a strong light (i.e., sunlight)
• When the ICC sensor body window is dirty and the measurement of the distance between the vehicles
becomes difficult
• When ABS warning lamp is ON
• When the SNOW mode switch is turned ON
• When the 4WD shift switch is not AUTO position
Diagnosis Procedure
INFOID:0000000006223656
1.
CHECK CAUSE OF AUTOMATIC CANCELLATION
Check if there is any cancellation cause in the “CAUSE OF AUTO-CANCEL” on “WORK SUPPORT” of “ICC/
ADAS” with CONSULT-III.
Is it displayed?
Not displayed>>GO TO 2.
“OPE SW VOLT CIRC”>>Refer to
.
“VHCL SPD UNMATCH”>>Refer to
“IGN LOW VOLT”>>Refer to
“CAN COMM ERROR”>>Refer to
DAS-182, "ADAS CONTROL UNIT : DTC Logic"
“ICC SENSOR CAN COMM ERR”>>Refer to
.
“ABS/TCS/VDC CIRC”>>Refer to
“APA HI TEMP”>>Refer to
“ECD CIRCUIT”>>Refer to
2.
PERFORM ALL OF THE SELF-DIAGNOSIS
1.
Perform “All DTC Reading”.
2.
Check if any DTC is detected in self-diagnosis results of “ICC/ADAS”. Refer to
Is any DTC detected?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts identified by the self-diagnosis result.
>> GO TO 6.
4.
CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL
1.
Start the engine.
2.
Check that the following items operate normally in “DATA MONITOR” of “ICC/ADAS”.
-
“VHCL SPEED SE”
-
“BRAKE SW”
-
“DYNA ASIST SW”
Is there a malfunctioning item?
DAS-202
< SYMPTOM DIAGNOSIS >
[DCA]
DCA SYSTEM NOT ACTIVATED (SWITCH IS ON)
All items are normal>>GO TO 5.
“VHCL SPEED SE”>>Refer to
.
“BRAKE SW”>>Refer to
.
“DYNA ASIST SW”>>Refer to
.
5.
REPLACE ADAS CONTROL UNIT
Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
>> GO TO 6.
6.
CHECK DCA SYSTEM
1.
Erase “self-diagnosis result”, and then perform “All DTC Reading” again after performing the action test.
(Refer to
2.
Check that the DCA system is normal.
>> INSPECTION END
DAS
CHIME DOES NOT SOUND
DAS-203
< SYMPTOM DIAGNOSIS >
[DCA]
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CHIME DOES NOT SOUND
Description
INFOID:0000000006223657
The warning chime may not sound in some cases when there is a short distance between vehicles. Some
examples are:
• When the vehicles are traveling at the same speed and the distance between vehicles is not changing
• When the vehicle ahead is traveling faster and the distance between vehicles is increasing
• When a vehicle cuts in near own vehicle
• The warning chime will not sound when own vehicle approaches vehicles that are parked or moving slowly.
• The warning chime does not sound when the system does not detect any vehicle ahead. (Diagnose the con-
ditions under which the system is detecting the vehicle ahead and when the system is malfunctioning. If
there is any malfunction in detecting the vehicle ahead, check the system following the
Diagnosis Procedure
INFOID:0000000006223658
1.
PERFORM ACTIVE TEST
Check if the warning chime sounds on the active test item “ICC BUZZER” of “ICC/ADAS” with CONSULT-III.
Does the warning chime sound?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK THE MALFUNCTION SYMPTOM DURING WARNING CHIME OPERATION
Understand the vehicle ahead detection condition when the malfunction occurred. If the warning chime should
have sounded, replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
.
>> GO TO 9.
3.
PERFORM THE SELF-DIAGNOSIS
1.
Perform “All DTC Reading” with CONSULT-III.
2.
Check if the “U1000” is detected in self-diagnosis results of “ICC/ADAS”.
Is “U1000” detected?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
CAN COMMUNICATIONS INSPECTION
Check the CAN communication and repair or replace malfunctioning parts. Refer to
>> GO TO 9.
5.
PERFORM THE SELF-DIAGNOSIS OF COMBINATION METER
1.
Perform “All DTC Reading” with CONSULT-III.
2.
Check if any DTC is detected in self-diagnosis results of “METER/M&A”.
Is any DTC detected?
YES
>> Repair or replace malfunctioning parts. Refer to
NO
>> GO TO 6.
6.
CHECK ICC WARNING CHIME CIRCUIT
Check meter buzzer. Refer to
WCS-40, "Component Function Check"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts.
DAS-204
< SYMPTOM DIAGNOSIS >
[DCA]
CHIME DOES NOT SOUND
>> GO TO 9.
8.
REPLACE ADAS CONTROL UNIT
Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
>> GO TO 9.
9.
CHECK DCA SYSTEM
1.
Erase “self-diagnosis result”, and then perform “All DTC Reading” again after performing the action test.
(Refer to
2.
Check if the DCA system is normal.
>> INSPECTION END
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