Nissan Sentra. Manual — part 475
OPTICAL SENSOR
EXL-103
< DTC/CIRCUIT DIAGNOSIS >
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OPTICAL SENSOR
Description
INFOID:0000000009757525
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
INFOID:0000000009757527
Regarding Wiring Diagram information, refer to
.
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
17
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
INFOID:0000000009757528
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
.
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)
29
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
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
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