Infiniti QX56 (Z62). Manual — part 307
DAS
DRIVER ASSISTANCE SYSTEMS
DAS-265
< WIRING DIAGRAM >
[FCW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
JCOWM0366GB
DAS-266
< BASIC INSPECTION >
[FCW]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000006223691
OVERALL SEQUENCE
DETAILED FLOW
NOTE:
The FCW system shares component parts with the ICC system. If the FCW system has a malfunction perform
diagnosis for the ICC system.
1.
INTERVIEW FOR MALFUNCTION
JPOIA0171GB
DAS
DIAGNOSIS AND REPAIR WORK FLOW
DAS-267
< BASIC INSPECTION >
[FCW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
It is also important to clarify the customer concerns before starting the inspection. Interview the customer
about the concerns carefully and understand the symptoms fully.
NOTE:
The customers are not professionals. Never assume that “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 the DTC is detected on the self-diagnosis results of “ICC/ADAS”.
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
>> GO TO 4.
4.
SYMPTOM DIAGNOSIS
Perform the applicable diagnosis according to the diagnosis chart by symptom. Refer to
.
>> 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
.
>> GO TO 6.
6.
MALFUNCTIONING PART REPAIR
Repair or replace the identified malfunctioning parts.
>> GO TO 7.
7.
REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
1.
Erases self-diagnosis results.
2.
Perform “All DTC Reading” again after repairing or replacing the specific items.
3.
Check if the DTC is detected on the self-diagnosis results of “ICC/ADAS”.
Is any DTC detected?
YES
>> GO TO 5.
NO
>> GO TO 8.
8.
REPAIR CHECK (ACTION TEST)
Perform the ICC system action test. Check that the malfunction symptom is solved or no other symptoms
occur.
Is there any malfunction symptom?
YES
>> GO TO 4.
NO
>> INSPECTION END
DAS-268
< SYMPTOM DIAGNOSIS >
[FCW]
FORWARD COLLISION WARNING SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
FORWARD COLLISION WARNING SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000006223692
CAUTION:
Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.
Symptom
Possible cause
Inspection item/Reference page
FCW system is not activated
Warning systems ON indica-
tor is not turned ON
⇔
OFF
when operating warning sys-
tems switch
• Warning systems switch
• Harness between ADAS con-
trol unit and warning systems
switch
• Harness between warning
systems switch and ground
• ADAS control unit
Warning systems switch circuit
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