Nissan Sentra manuals

Nissan Sentra Service Manual: Optical sensor

Nissan Sentra Service Manual / Driver controls / Exterior lighting system / Dtc/circuit diagnosis / 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


  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


*: 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

  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?


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?


Is the inspection result normal? YES >> GO TO 4.

NO >> GO TO 5.

3.Check optical sensor power supply for open circuit

  1. Turn the ignition switch off.
  2. Disconnect the bcm harness connector.
  3. Check continuity between optical sensor harness connector and bcm harness connector.


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

Is the inspection result normal?


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.


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

Is the inspection result normal?


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?


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:

Wiring diagram
Ipdm e/r (intelligent power distribution module engine room) Wiring diagram ...

Precautions
Precaution for supplemental restraint system (srs) "air bag" and "seat belt pre-tensioner" The supplemental restraint system such as “air bag” and “seat belt pre-tensioner”, used along with a front seat belt, helps to reduce the risk or severity of injur ...

Basic inspection
Diagnosis and repair workflow Work Flow Overall sequence Detailed flow 1.Get information for symptom Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). >> GO TO 2. 2.Confirm the symptom Try t ...

© 2014-2025 Copyright www.nisentra.com