Infiniti QX56 (Z62). Manual — part 339
DAS
WARNING BUZZER CIRCUIT
DAS-393
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C
D
E
F
G
H
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J
K
L
M
B
N
P
A
WARNING BUZZER CIRCUIT
Component Function Check
INFOID:0000000006223831
1.
CHECK WARNING BUZZER
1.
Turn the ignition switch ON.
2.
Select the active test item “LDP BUZZER” of “ICC/ADAS” with CONSULT-III.
3.
With operating the test item, check the operation.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
DAS-393, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000006223832
1.
CHECK WARNING BUZZER POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the warning buzzer connector.
3.
Turn ignition switch ON.
4.
Check voltage between the warning buzzer harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the warning buzzer power supply circuit.
2.
CHECK WARNING BUZZER GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between the warning buzzer harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK WARNING BUZZER SIGNAL CIRCUIT FOR OPEN
1.
Disconnect the ADAS control unit connector.
2.
Check continuity between the ADAS control unit harness connector and warning buzzer harness connec-
tor.
Is the inspection result normal?
On
: Warning buzzer is activated.
Off
: Warning buzzer is not activated.
Terminals
Voltage
(Approx.)
(+)
(
−
)
Warning buzzer
Ground
Connector
Terminal
M94
1
Battery voltage
Warning buzzer
Ground
Continuity
Connector
Terminal
M94
3
Existed
ADAS control unit
Warning buzzer
Continuity
Connector
Terminal
Connector
Terminal
B61
12
M94
2
Existed
DAS-394
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
WARNING BUZZER CIRCUIT
YES
>> GO TO 4.
NO
>> Repair the harnesses or connectors.
4.
CHECK WARNING BUZZER SIGNAL CIRCUIT FOR SHORT
Check continuity between the ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK WARNING BUZZER OPERATION
1.
Connect the warning buzzer connector.
2.
Turn ignition switch ON.
3.
Apply ground to warning buzzer terminal 2.
4.
Check condition of the warning buzzer.
Does warning buzzer sound?
YES
>> Replace the ADAS control unit.
NO
>> Replace the warning buzzer.
ADAS control unit
Ground
Continuity
Connector
Terminal
M61
12
Not existed
DAS
LDW & LDP SYSTEM SYMPTOMS
DAS-395
< SYMPTOM DIAGNOSIS >
[LDW & LDP]
C
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SYMPTOM DIAGNOSIS
LDW & LDP SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000006223833
NOTE:
For the operational conditions of Lane Departure Warning (LDW) and Lane Departure Prevention (LDP), refer
to the following descriptions.
• LDW:
DAS-277, "LANE DEPARTURE WARNING (LDW) SYSTEM : System Description"
DAS-280, "LANE DEPARTURE PREVENTION (LDP) SYSTEM : System Description"
Symptom
Possible cause
Inspection item/Reference page
Indicator/warning lamps do not
illuminate when ignition switch
OFF
⇒
ON
Lane departure warning
lamp (Yellow) does not illu-
minate.
• Combination meter
• ADAS control unit
Lane departure warning lamp
does not turned ON
Refer to
LDP ON indicator lamp
(Green) does not illuminate.
• Combination meter
• ADAS control unit
LDP ON indicator lamp does not
turned ON
Refer to
Warning systems ON indica-
tor does not illuminate.
• Harness between ADAS
control unit and warning sys-
tems switch
• Warning systems switch
• ADAS control unit
Warning systems ON indicator
circuit
Refer to
Lane departure warning
lamp (Yellow) and LDP ON
indicator lamp (Green) does
not illuminate.
• Combination meter
• ADAS control unit
• Lane departure warning lamp
does not turned ON
Refer to
• LDP ON indicator lamp does
not turned ON
Refer to
All of indicator/warning
lamps does not illuminate;
• Lane departure warning
lamp (Yellow)
• LDP ON indicator lamp
(Green)
• Warning systems ON indi-
cator
• Power supply and ground cir-
cuit of ADAS control unit
• ADAS control unit
Power supply and ground circuit
of ADAS control unit
Refer to
TROL UNIT : Diagnosis Proce-
dure"
LDW system is not activated.
(Indicator/warning lamps illumi-
nate when ignition switch OFF
⇒
ON)
Warning systems ON indica-
tor is not turned ON
⇔
OFF
when operating warning
systems switch
• Harness between ADAS
control unit and warning sys-
tems switch
• Harness between warning
systems switch and ground
• Warning systems switch
• ADAS control unit
Warning systems switch circuit
Refer to
Warning buzzer is not
sounding.
(Lane departure warning
lamp is activated.)
• Harness between the IPDM
E/R and warning buzzer
• Harness between ADAS
control unit and warning
buzzer
• Harness between warning
buzzer and ground
• Warning buzzer
• ADAS control unit
Warning buzzer circuit
Refer to
DAS-396
< SYMPTOM DIAGNOSIS >
[LDW & LDP]
LDW & LDP SYSTEM SYMPTOMS
LDP system is not activated.
(LDW system is functioning nor-
mally)
Indicator lamp is not turned
ON
⇔
OFF when operating
dynamic driver assistance
switch
• Dynamic driver assistance
switch
• Combination meter
• ADAS control unit
• AV control unit
• Dynamic driver assistance
switch (ICC steering switch)
Refer to
• LDP system setting can not be
turned ON/OFF on the naviga-
tion screen
Refer to
Warning is functioning but
yawing is not functioning.
—
• Cause of auto-cancel 2
Refer to
• Normal operating condition
Refer to
Warning functions are not timely
(Example)
• Does not function when driving on lane markers
• Functions when driving in a lane
• Functions in a different position from the actual position.
• Camera aiming adjustment
• Lane camera unit
• ADAS control unit
Camera aiming adjustment
Functions when changing the course in direction of the turn sig-
nal
Turn indicator signal (CAN)
• BCM
• ADAS control unit
System operates even when us-
ing turn signal
Refer to
Symptom
Possible cause
Inspection item/Reference page
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