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.

Daytime light system inoperative
Description The daytime light system is inoperative even though the combination switch (lighting and turn signal switch) and parking brake switch are in the normal setting, also whenever engine is ...

Parking, license plate and tail lamps are not turned on
Description The parking, license plate and tail lamps do not turn on in with any lighting switch setting. Diagnosis procedure 1.Combination switch (lighting and turn signal switch) inspection Ch ...

Other materials:

U1000 CAN Comm circuit
Description CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle multiplex communication system with high data communication speed and excellent error detection ability. Many electronic control units are equipped into vehicles, and e ...

Inspection and adjustment
Additional service when replacing control unit Additional service when replacing control unit : description Memory reset procedure Please observe the following instructions at confirming the moonroof operation. Note: Do not disconnect the electronic power while the moonroof is operating ...

L terminal circuit (open)
Description The “L” terminal circuit controls the charge warning lamp. The charge warning lamp turns ON when the ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine running, the charge warning lamp turns OFF. If the charge warnin ...

© 2014-2025 Copyright www.nisentra.com