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
- 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).
- 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
- Turn ignition switch off.
- 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.
Both side headlamps do not switch
to high beam
Description
The headlamps (both sides) do not switch to high beam when the lighting
switch is in the hi or pass setting.
Diagnosis procedure
1.Combination switch (lighting and turn signal switc ...
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 switc ...
Other materials:
P014C, P014D, P015A, P015B A/F Sensor 1
DTC Logic
DTC DETECTION LOGIC
To judge the malfunction of A/F sensor 1, this diagnosis measures response
time of the A/F signal computed
by ECM from the A/F sensor 1 signal. The time is compensated by engine operating
(speed and load), fuel
feedback control constant, and the A/F sensor 1 tem ...
Maintenance precautions
When performing any inspection or maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precautions
which should be closely observed.
WARNING
Park the vehicle on a level surface, apply
...
Brake warning lamp
Component Function Check
1.CHECK BRAKE WARNING LAMP FUNCTION (1)
Check that brake warning lamp in combination meter turns ON for
approximately 2 seconds after ignition
switch is turned ON.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Proceed to diagnosis procedure. ...
