Infiniti FX35, FX50 (S51). Manual — part 1022
EXL-84
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
OPTICAL SENSOR
With illuminating the optical sensor, check the voltage between the optical sensor harness connector and the
ground.
*: Illuminate the optical sensor. The value may be less than the standard if brightness is weak.
Is the measurement value normal?
YES
>> GO TO 7.
NO
>> Replace the optical sensor.
4.
CHECK OPTICAL SENSOR OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the optical sensor connector and the BCM connector.
3.
Check continuity between the optical sensor harness connector and the BCM harness connector.
Does continuity exist?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK OPTICAL SENSOR SHORT CIRCUIT
Check the continuity between the optical sensor harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Replace BCM.
6.
CHECK OPTICAL SENSOR GROUND OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the optical sensor connector and BCM connector.
3.
Check continuity between the optical sensor harness connector and the BCM harness connector.
Does continuity exist?
YES
>> Replace BCM.
NO
>> Repair the harnesses or connectors.
7.
CHECK OPTICAL SENSOR SIGNAL OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the optical sensor connector and the BCM connector.
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
Optical sensor
Ground
Optical sen-
sor
Connector
Terminal
M94
2
When illumi-
nating
3.1 V or
more *
When shut-
ting off light
0.6 V or less
Optical sensor
BCM
Continuity
Connector
Terminal
Connector
Terminal
M94
1
M123
138
Existed
Optical sensor
Ground
Continuity
Connector
Terminal
M94
1
Not existed
Optical sensor
BCM
Continuity
Connector
Terminal
Connector
Terminal
M94
3
M123
137
Existed
OPTICAL SENSOR
EXL-85
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
3.
Check continuity between the optical sensor harness connector and the BCM harness connector.
Does continuity exist?
YES
>> GO TO 8.
NO
>> Repair the harnesses or connectors.
8.
CHECK OPTICAL SENSOR SHORT CIRCUIT
Check the continuity between the optical sensor harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Replace BCM.
Optical sensor
BCM
Continuity
Connector
Terminal
Connector
Terminal
M94
2
M123
113
Existed
Optical sensor
Ground
Continuity
Connector
Terminal
M94
2
Not existed
EXL-86
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
HAZARD SWITCH
HAZARD SWITCH
Description
INFOID:0000000005244751
Hazard switch is integrated in the multifunction switch. Hazard switch inputs the signals to BCM when press-
ing the switch.
Component Function Check
INFOID:0000000005244752
1.
CHECK HAZARD SWITCH SIGNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1.
Turn the ignition switch ON.
2.
Select "HAZARD SW" of BCM (FLASHER) data monitor item.
3.
With operating the hazard switch, check the monitor status.
Is the item status normal?
YES
>> Hazard switch circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000005244753
1.
CHECK HAZARD SWITCH SIGNAL INPUT
With operating the hazard switch, check the voltage between the BCM harness connector and the ground.
Is the measurement value normal?
YES
>> Replace BCM.
NO
>> GO TO 2.
2.
CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the multifunction switch connector and the BCM connector.
3.
Check continuity between the multifunction switch harness connector and the BCM harness connector.
Does continuity exist?
Monitor item
Condition
Monitor status
HAZARD SW
Hazard switch
While pressing the switch
On
While not pressing the switch
Off
Terminals
Condition
Voltage (Approx.)
(+)
(
−
)
BCM
Ground
Hazard switch
Connector
Terminal
M122
110
While pressing
the switch
0 V
While not press-
ing the switch
JPMIA0012GB
Multifunction switch
BCM
Continuity
Connector
Terminal
Connector
Terminal
M72
16
M122
110
Existed
HAZARD SWITCH
EXL-87
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT
Check continuity between the multifunction switch harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> GO TO 4.
4.
CHECK HAZARD SWITCH GROUND OPEN CIRCUIT
Check continuity between the multifunction switch harness connector and the ground.
Does continuity exist?
YES
>> Replace the hazard switch (multifunction switch).
NO
>> Repair the harnesses or connectors.
Multifunction switch
Ground
Continuity
Connector
Terminal
M72
16
Not existed
Multifunction switch
Ground
Continuity
Connector
Terminal
M72
1
Existed
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