Infiniti EX35. Manual - part 759

EXL-80

< COMPONENT DIAGNOSIS >

[XENON TYPE]

TURN SIGNAL LAMP CIRCUIT

YES

>> GO TO 3.

NO

>> Replace BCM.

3.

CHECK TURN SIGNAL LAMP OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check the continuity between the BCM harness connector and the front combination lamp or the rear
combination lamp harness connector.

Does continuity exist?

YES

>> GO TO 4.

NO

>> Repair the harnesses or connectors.

4.

CHECK TURN SIGNAL LAMP SHORT CIRCUIT

Check continuity between the BCM harness connector and the ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> GO TO 5.

5.

CHECK TURN SIGNAL LAMP GROUND OPEN CIRCUIT

Check the continuity between the BCM harness connector and the front combination lamp or the rear combi-
nation lamp and the ground.

Does continuity exist?

YES

>> Replace the front combination lamp or the rear combination lamp.

NO

>> Repair the harnesses or connectors.

BCM

Front combination lamp/

Rear combination lamp

Continuity

Connector

Terminal

Connector

Terminal

Front RH

M119

17

E28

6

Existed

Front LH

18

E58

6

Rear RH

M120

20

B261

1

Rear LH

25

B260

1

BCM

Ground

Continuity

Connector

Terminal

Front RH

M119

17

Not existed

Front LH

18

Rear RH

M120

20

Rear LH

25

Front combination lamp /

Rear combination lamp

Ground

Continuity

Connector

Terminal

Front RH

E28

4

Existed

Front LH

E58

4

Rear RH

B261

2

Rear LH

B260

2

OPTICAL SENSOR

EXL-81

< COMPONENT DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

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A

B

EXL

N

O

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OPTICAL SENSOR

Description

INFOID:0000000003135347

Optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.

Component Function Check

INFOID:0000000003135348

1.

CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III

CONSULT-III DATA MONITOR

1.

Turn the ignition switch ON.

2.

Select "OPTICAL SENSOR" of BCM (HEADLAMP) data monitor item.

3.

Turn the 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 item status normal?

YES

>> Optical sensor is normal.

NO

>> Refer to 

EXL-81, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003135349

1.

CHECK OPTICAL SENSOR POWER SUPPLY INPUT

1.

Turn the ignition switch ON.

2.

Turn the lighting switch AUTO.

3.

Check the voltage between the optical sensor harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK OPTICAL SENSOR GROUND INPUT

Check the voltage between the optical sensor harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> GO TO 6.

Monitor item

Condition

Voltage (Approx.)

OPTICAL SEN-
SOR

Optical sensor

When illuminat-
ing

3.1 V or more *

When shutting 
off light

0.6 V or less

Terminals

Voltage

(Approx.)

(+)

(

−

)

Optical sensor

Ground

Connector

Terminal

M94

1

5 V

Terminals

Voltage

(Approx.)

(+)

(

−

)

Optical sensor

Ground

Connector

Terminal

M94

3

0 V

EXL-82

< COMPONENT DIAGNOSIS >

[XENON TYPE]

OPTICAL SENSOR

3.

CHECK OPTICAL SENSOR SIGNAL OUTPUT

 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 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 

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-83

< COMPONENT DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

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A

B

EXL

N

O

P

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

>> 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