Infiniti QX56 (Z62). Manual — part 702
EXL-100
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
TURN SIGNAL LAMP CIRCUIT
3.
CHECK TURN SIGNAL LAMP OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check continuity between BCM harness connector and front combination lamp, door mirror or rear combi-
nation lamp harness connector.
Front turn signal lamp
Side turn signal lamp
Rear turn signal lamp
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
4.
CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Check each bulb socket for internal short circuit. Replace BCM if check result is normal. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harness.
5.
CHECK TURN SIGNAL LAMP GROUND OPEN CIRCUIT
Check continuity between front combination lamp, door mirror or rear combination lamp and ground.
Front turn signal lamp
Side turn signal lamp
BCM
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
LH
M70
60
E118
8
Existed
RH
61
E119
BCM
Door mirror
Continuity
Connector
Terminal
Connector
Terminal
Driver side
M70
60
D3
20
Existed
Passenger side
61
D23
BCM
Rear combination lamp
Continuity
Connector
Terminal
Connector
Terminal
LH
M70
60
B60
3
Existed
RH
61
B232
BCM
Ground
Continuity
Connector
Terminal
M70
60
Not existed
61
Front combination lamp
Ground
Continuity
Connector
Terminal
LH
E118
3
Existed
RH
E119
Door mirror
Ground
Continuity
Connector
Terminal
Driver side
D3
19
Existed
Passenger side
D23
TURN SIGNAL LAMP CIRCUIT
EXL-101
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
Rear turn signal lamp
Is the inspection result normal?
YES
>> Check corresponding bulb socket and harness. Repair or replace if necessary.
NO
>> Repair or replace harness.
Rear combination lamp
Ground
Continuity
Connector
Terminal
LH
B60
4
Existed
RH
B232
EXL-102
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
OPTICAL SENSOR
OPTICAL SENSOR
Component Function Check
INFOID:0000000006213969
1.
CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1.
Turn ignition switch ON.
2.
Select “OPTISEN (DTCT)” of BCM (HEADLAMP) data monitor item.
3.
Turn lighting switch AUTO.
4.
With the optical sensor illuminating, check the monitor status.
*: Illuminates the optical sensor. The value may be less than the standard value if brightness is weak.
Is the inspection result normal?
YES
>> Optical sensor is normal.
NO
>> Refer to
EXL-102, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000006213970
1.
CHECK OPTICAL SENSOR POWER SUPPLY INPUT
1.
Turn ignition switch ON.
2.
Turn lighting switch AUTO.
3.
Check voltage between optical sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK OPTICAL SENSOR GROUND INPUT
Check voltage between optical sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 6.
3.
CHECK OPTICAL SENSOR SIGNAL OUTPUT
With illuminating the optical sensor, check voltage between optical sensor harness connector and ground.
Monitor item
Condition
Voltage (Approx.)
OPTISEN (DTCT)
Optical sensor
When illuminating
3.1 V or more *
When shutting off light
0.6 V or less
(+)
(
−
)
Voltage
(Approx.)
Optical sensor
Connector
Terminal
M17
1
Ground
5 V
(+)
(
−
)
Voltage
(Approx.)
Optical sensor
Connector
Terminal
M17
3
Ground
0 V
OPTICAL SENSOR
EXL-103
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
*: Illuminate the optical sensor. The value may be less than the standard if brightness is weak.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace the optical sensor.
4.
CHECK OPTICAL SENSOR OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect optical sensor connector and BCM connector.
3.
Check continuity between optical sensor harness connector and BCM harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK OPTICAL SENSOR SHORT CIRCUIT
Check continuity between optical sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harness.
6.
CHECK OPTICAL SENSOR GROUND OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect optical sensor connector and BCM connector.
3.
Check continuity between optical sensor harness connector and BCM harness connector.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harness.
7.
CHECK OPTICAL SENSOR SIGNAL OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect optical sensor connector and BCM connector.
3.
Check continuity between optical sensor harness connector and BCM harness connector.
(+)
(
−
)
Condition
Voltage
(Approx.)
Optical sensor
Connector
Terminal
M17
2
Ground
Optical sensor
When illuminating
3.1 V or more *
When shutting off light
0.6 V or less
Optical sensor
BCM
Continuity
Connector
Terminal
Connector
Terminal
M17
1
M68
17
Existed
Optical sensor
Ground
Continuity
Connector
Terminal
M17
1
Not existed
Optical sensor
BCM
Continuity
Connector
Terminal
Connector
Terminal
M17
3
M68
18
Existed
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