Nissan Sentra Service Manual: 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 operating.

Diagnosis procedure

1.Check daytime light operation

1. Perform bcm(headlamp) daytime running light active test. Refer to exl-19, "headlamp : consult function (bcm - head lamp)" (with intelligent key system) or exl-22, "headlamp : consult function (bcm - head lamp)" (without intelligent key system).
2. Check that the daytime lights turn on.

Is the inspection results normal? Yes >> replace bcm. Refer to bcs-73, "removal and installation" (with intelligent key system) or bcs- 126, "removal and installation" (without intelligent key system).

No >> go to 2.

2.Check daytime light relay fuse

1. Turn ignition switch off.
2. Check that the following fuse is not blown.

Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit.

NO >> GO TO 3.

3.Check daytime light bulbs

Check the daytime light bulbs are not open.

Is the inspection result normal? Yes >> go to 4.

No >> replace the bulbs.

4.Perform daytime light circuit inspection

Check the daytime light circuit. Refer to exl-92, "diagnosis procedure".

Is the inspection results 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.