Nissan Altima HL32 Hybrid. Manual - part 412

EXL-48

< COMPONENT DIAGNOSIS >

TURN SIGNAL LAMP CIRCUIT

TURN SIGNAL LAMP CIRCUIT

Description

INFOID:0000000004216400

The BCM monitors inputs from the combination switch to determine when to activate the turn signals. The

BCM outputs voltage direction to the left and right turn signals during turn signal operation or both during haz-

ard warning operation. The BCM sends a turn signal indicator request to the combination meter via the CAN

communication lines. 

The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is

open.

NOTE:

Turn signal lamp blinks at normal speed when using the hazard warning lamp.

Component Function Check

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1.

CHECK TURN SIGNAL LAMP

CONSULT-III

1. Select "FLASHER" of BCM (FLASHER) active test item.

2. With operating the test items, check that the turn signal lamp blinks.

Does the turn signal lamp blink?

YES

>> Turn signal lamp circuit is normal.

NO

>> Refer to 

EXL-48, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000004216402

1.

CHECK TURN SIGNAL LAMP BULB

Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?

YES

>> GO TO 2

NO

>> Replace the bulb.

2.

CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE

1. Turn the ignition switch OFF.

2. Disconnect the front combination lamp connector or the rear combination lamp connector.

3. Turn the ignition switch ON.

4. With operating the turn signal switch, check the voltage between

the BCM harness connector and the ground.

LH

: Turn signal lamp LH blinking 

RH

: Turn signal lamp RH blinking 

OFF

: The turn signal lamp OFF

Terminals

Test item

Voltage

(+)

(

−)

BCM

Ground

FLASHER

Connector

Terminal

 RH

M17

17

LH or RH

LH

M17

18

OFF

0V

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TURN SIGNAL LAMP CIRCUIT

EXL-49

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Replace BCM.

3.

CHECK TURN SIGNAL LAMP CIRCUIT FOR OPEN 

1. Turn the ignition switch OFF.

2. Disconnect BCM connector.

3. Check the continuity between the BCM harness connector and the front combination lamp, the rear com-

bination lamp harness connector or the door mirror connector (if equipped with turn signals in mirrors).

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 CIRCUIT

Check continuity between the front combination lamp, the rear combination lamp or the door mirror and

ground (if equipped with turn signals in mirrors).

Does continuity exist?

YES

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

BCM

Front combination lamp 

Rear combination lamp

Door mirror

Continuity

Connector

Terminal

Connector

Terminal

Rear LH

M17

18

B30

3

Yes

Front LH

E217

5

Door mirror LH

D4

7

Rear RH

M17

17

B45

3

Front RH

E224

5

Door mirror RH

D107

7

BCM

Ground

Continuity

Connector

Terminal

LH

M17

18

No

RH

17

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Front combination lamp

Rear combination lamp

Door mirror

Ground

Continuity

Connector

Terminal

Front RH

E224

7

Yes

Front LH

E217

7

Rear RH

B45

5

Rear LH

B30

5

Door mirror RH

D107

8

Door mirror LH

D4

8

EXL-50

< COMPONENT DIAGNOSIS >

TURN SIGNAL LAMP CIRCUIT

NO

>> Repair the harnesses or connectors.

OPTICAL SENSOR

EXL-51

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

OPTICAL SENSOR

Description

INFOID:0000000004216403

The optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to

the BCM.

Component Function Check

INFOID:0000000004216404

1.

CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III

CONSULT-III

1. Turn the ignition switch ON.

2. Select "OPTICAL SENSOR" of BCM (HEAD LAMP) DATA MONITOR item.

3. Turn the lighting switch to 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-51, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000004216405

1.

CHECK OPTICAL SENSOR POWER SUPPLY INPUT

1. Turn the ignition switch ON.

2. Turn the lighting switch to AUTO.

3. Check the voltage between the optical sensor harness connec-

tor and 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 ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> GO TO 6

Monitor item

Condition

Voltage

OPTICAL SENSOR

When illuminating

3.1 V or more *

When shutting off light

0.6 V or less

Terminals

Voltage

(+)

(

−)

Optical sensor

Ground

Connector

Terminal

M66

1

5V

ALLIA0130ZZ

Terminals

Voltage

(+)

(

−)

Optical sensor

Ground

Connector

Terminal

M66

3

 Less than 0.2V

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