Nissan Sentra manuals

Nissan Sentra Service Manual: Both side headlamps (lo) are not turned on

Description

The headlamps (both sides) do not turn on in any lighting switch setting.

Diagnosis Procedure

1.Check combination switch (lighting and turn signal switch)

Check the combination switch (lighting and turn signal switch). Refer to BCS-72, "Symptom Table" (with Intelligent Key system) or BCS-125, "Symptom Table" (without Intelligent Key system).

Is the inspection result normal? YES >> GO TO 2

No >> repair or replace the malfunctioning part

2.Check headlamp (lo) request signal input

Consult data monitor


  1. Select hl lo req of ipdm e/r data monitor item.
  2. While operating the lighting switch, check the monitor status.

Is the inspection result normal?


Is the inspection result normal? Yes >> go to 3

No >> replace bcm. Refer to bcs-73, "removal and installation" (with intelligent key system) or bcs- 126, "removal and installation" (without intelligent key system).

3.Headlamp (lo) circuit inspection

Check the headlamp (lo) circuit. Refer to exl-90, "diagnosis procedure".

Is the inspection result normal? Yes >> replace ipdm e/r. Refer to pcs-30, "removal and installation" (with intelligent key system) or pcs-58, "removal and installation" (without intelligent key system).

No >> repair or replace the malfunctioning part.

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Other materials:

System description
Component parts Component parts location Ipdm e/r System Relay control system Relay control system : system diagram System diagram Relay control system : system description Ipdm e/r activates the internal control circuit to perform the relay on-off control according to the inp ...

Wiring diagram
Power door lock system Wiring diagram Intelligent key system Wiring diagram Trunk lid opener Wiring diagram ...

Circuit Inspection
DESCRIPTION In general, testing electrical circuits is an easy task if it is approached in a logical and organized method. Before beginning it is important to have all available information on the system to be tested. Also, get a thorough understanding of system operation. Then you w ...

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