Nissan Sentra. Manual - part 475

OPTICAL SENSOR

EXL-103

< DTC/CIRCUIT DIAGNOSIS >

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OPTICAL SENSOR

Description

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The optical sensor measures ambient light and transmits the optical sensor signal to the BCM.

Component Function Check

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1.

CHECK OPTICAL SENSOR SIGNAL BY CONSULT

CONSULT

1. Turn the ignition switch ON.

2. Select OPTI SEN of BCM (HEAD LAMP) DATA MONITOR item.

3. Turn the lighting switch to AUTO.

*: 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-103, "Diagnosis Procedure"

.

Diagnosis Procedure

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Regarding Wiring Diagram information, refer to 

EXL-53, "Wiring Diagram"

.

1.

CHECK OPTICAL SENSOR POWER SUPPLY INPUT

1. Turn the ignition switch OFF.

2. Disconnect the optical sensor harness connector.

3. Turn the ignition switch ON.

4. Turn the lighting switch to AUTO.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK OPTICAL SENSOR GROUND CIRCUIT

1. Turn the ignition switch OFF.

2. Check continuity between the optical sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 5.

3.

CHECK OPTICAL SENSOR POWER SUPPLY FOR OPEN CIRCUIT

Monitor item

Condition

Voltage

OPTI SEN (DTCT)

When outside of vehicle is bright

3.1V or more *

When outside of vehicle is dark

0.6V or less

(+)

(

−)

Voltage

(Approx.)

Connector

Terminal

M72

1

Ground

5 V

(+)

(

−)

Continuity

Connector

Terminal

M72

3

Ground

Yes

EXL-104

< DTC/CIRCUIT DIAGNOSIS >

OPTICAL SENSOR

1. Turn the ignition switch OFF.

2. Disconnect the BCM harness connector.

3. Check continuity between optical sensor harness connector and BCM harness connector.

4. Check continuity between optical sensor harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

NO

>> Repair or replace the harness or connectors.

4.

CHECK OPTICAL SENSOR SIGNAL OPEN CIRCUIT 

1. Disconnect optical sensor connector and BCM connector.

2. Check continuity between optical sensor harness connector and BCM harness connector.

3. Check continuity between optical sensor harness connector and ground.

Is the inspection result normal?

YES

>> Replace the optical sensor. Refer to 

EXL-130, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

5.

CHECK OPTICAL SENSOR GROUND FOR OPEN CIRCUIT

1. Disconnect the BCM harness connector.

2. Check continuity between optical sensor harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

Optical sensor

BCM

Continuity

Connector

Terminal

Connector

Terminal

M72

1

M84

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Yes

(+)

(

−)

Continuity

Connector

Terminal

M72

1

Ground

No

Optical sensor

BCM

Continuity

Connector

Terminal

Connector

Terminal

M72

2

M84

14

Yes

Connector

Terminal

(

−)

Continuity

M72

2

Ground

No

Optical sensor

BCM

Continuity

Connector

Terminal

Connector

Terminal

M72

3

M84

18

Yes

HAZARD SWITCH

EXL-105

< DTC/CIRCUIT DIAGNOSIS >

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HAZARD SWITCH

Component Function Check

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1.

CHECK HAZARD SWITCH SIGNAL BY CONSULT

CONSULT DATA MONITOR

1. Turn ignition switch ON.

2. Select HAZARD SW of BCM (FLASHER) Data Monitor item.

3. While operating the hazard switch, check the monitor status.

Is the inspection result normal?

YES

>> Hazard switch circuit is normal.

NO

>> Refer to 

EXL-105, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009757529

Regarding Wiring Diagram information, refer to 

EXL-58, "Wiring Diagram"

.

1.

CHECK HAZARD SWITCH SIGNAL INPUT

1. Turn ignition switch OFF.

2. Disconnect hazard switch connector.

3. Turn ignition switch ON.

4. Check voltage between hazard switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between hazard harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

Monitor item

Condition

Monitor status

HAZARD SW

Hazard switch

ON

On

OFF

Off

(+)

(

−)

Voltage

(Approx.)

Hazard switch

Connector

Terminal

M102

2

Ground

JPMIA0154GB

Hazard switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

M102

2

M85 (with Intelligent Key)

M21 (without Intelligent Key)

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Yes

EXL-106

< DTC/CIRCUIT DIAGNOSIS >

HAZARD SWITCH

NO

>> Repair or replace harness or connector.

3.

CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT

Check continuity between hazard switch harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

 (with Intelligent Key system) or 

BCS-

126, "Removal and Installation"

 (without Intelligent Key system).

NO

>> Repair or replace harness or connector.

4.

CHECK HAZARD SWITCH GROUND OPEN CIRCUIT

Check continuity between hazard switch harness connector and ground.

Is the inspection result normal?

YES

>> Replace hazard switch. Refer to 

EXL-129, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

Hazard switch

Ground

Continuity

Connector

Terminal

M102

2

No

Hazard switch

Ground

Continuity

Connector

Terminal

M102

3

Yes