Infiniti QX56 (Z62). Manual — part 369
DAS
POWER SUPPLY AND GROUND CIRCUIT
DAS-513
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the side radar LH ground circuit.
SIDE RADAR RH
SIDE RADAR RH : Diagnosis Procedure
INFOID:0000000006223969
1.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the side radar RH connector.
3.
Check voltage between side radar RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the side radar RH power supply circuit.
2.
CHECK GROUND CIRCUIT
Check continuity between side radar RH harness connectors and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the side radar RH ground circuit.
Side radar LH
Ground
Continuity
Connector
Terminal
B74
2
Existed
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
Side radar RH
Ground
Ignition switch
Connector
Terminal
B243
5
OFF
0 V
ON
Battery voltage
Side radar RH
Ground
Continuity
Connector
Terminal
B243
2
Existed
DAS-514
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000006223970
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Check the terminals and connectors of the side radar RH for damage, bend and short (unit side and con-
nector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal or connector.
2.
CHECK CONTINUITY RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
1.
Disconnect side radar RH connector.
2.
Check continuity between side radar RH harness connectors and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Side radar RH
Ground
Continuity
Connector
Terminal
B243
1
Existed
DAS
WARNING SYSTEMS SWITCH CIRCUIT
DAS-515
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
WARNING SYSTEMS SWITCH CIRCUIT
Component Function Check
INFOID:0000000006223971
1.
CHECK WARNING SYSTEMS SWITCH INPUT SIGNAL
1.
Turn the ignition switch ON.
2.
Select the DATA MONITOR item “WARN SYS SW” of “ICC/ADAS” with CONSULT-III.
3.
With operating the warning systems switch, check the monitor status.
Is the inspection result normal?
YES
>> Warning systems switch circuit is normal.
NO
>> Refer to
DAS-389, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000006223972
1.
CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT
1.
Turn the ignition switch ON.
2.
Check voltage between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK WARNING SYSTEMS SWITCH
1.
Turn ignition switch OFF.
2.
Remove warning systems switch.
3.
Check warning systems switch. Refer to
DAS-390, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the warning systems switch. Refer to
DAS-404, "Removal and Installation"
3.
CHECK WARNING SYSTEMS SWITCH GROUND CIRCUIT
Check continuity between twin switch harness connector terminal and the ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT CIRCUIT FOR OPEN
1.
Disconnect the ADAS control unit connector.
Monitor item
Condition
Monitor status
WARN SYS
SW
Warning systems switch is pressed
On
Warning systems switch is not pressed
OFF
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
ADAS control unit
Ground
Warning
systems
switch
Connector
Terminal
B61
1
Pressed
0 V
Released
12 V
Twin switch
Ground
Continuity
Connector
Terminal
M127
3
Existed
DAS-516
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
WARNING SYSTEMS SWITCH CIRCUIT
2.
Check continuity between the ADAS control unit harness connector and twin switch harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT CIRCUIT FOR SHORT
Check continuity between the ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000006223973
1.
CHECK WARNING SYSTEMS SWITCH
Check continuity of warning systems switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace warning systems switch.
ADAS control unit
Twin switch
Continuity
Connector
Terminal
Connector
Terminal
B61
1
M127
2
Existed
ADAS control unit
Ground
Continuity
Connector
Terminal
B61
1
Not existed
Terminal
Condition
Continuity
2
3
When warning systems switch is pressed
Existed
When warning systems switch is released
Not existed
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