Nissan Sentra Service Manual: Optical sensor
Description
The optical sensor measures ambient light and transmits the optical sensor signal to the bcm.
Component function check
1.Check optical sensor signal by consult
Consult
- Turn the ignition switch ON.
- Select opti sen of bcm (head lamp) data monitor item.
- 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
Regarding Wiring Diagram information, refer to EXL-53, "Wiring Diagram".
1.Check optical sensor power supply input
- Turn the ignition switch off
- Disconnect the optical sensor harness connector.
- Turn the ignition switch ON.
- Turn the lighting switch to auto.
- 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
- Turn the ignition switch off.
- 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
- Turn the ignition switch off.
- Disconnect the bcm harness connector.
- Check continuity between optical sensor harness connector and bcm harness connector.
- 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
- Disconnect optical sensor connector and bcm connector.
- Check continuity between optical sensor harness connector and bcm harness connector.
- 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
- Disconnect the bcm harness connector.
- 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.
Turn signal lamp circuit
Description
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
...
Hazard switch
Component function check
1.Check hazard switch signal by consult
Consult data monitor
Turn ignition switch ON.
Select hazard sw of bcm (flasher) data monitor item.
While operating the hazar ...
Other materials:
S terminal circuit
Description
The output voltage of the generator is controlled by the IC regulator at
terminal “S” detecting the input voltage
from battery.
The “S” terminal circuit detects the battery voltage to adjust the generator
output voltage with the IC voltage
regulator.
Diagn ...
Diagnosis system (AIR BAG)
Description
CAUTION:
Never use electrical test equipment on any circuit related to the
SRS unless instructed in this Service
Manual. SRS wiring harnesses can be identified by yellow and/or orange
harnesses or harness
connectors.
Never repair, splice or modify the SRS wiring harness. ...
Rear disc brake
BRAKE PAD
BRAKE PAD : Exploded View
Upper sliding pin bolt
Lower sliding pin bolt
Bushing
Cylinder body
Inner shim cover
Inner shim
Inner pad (with pad wear sensor)
Pad retainer
Torque member
Outer pad
Outer shim
Outer shim cover
Apply rubber grease
Molykote A ...