Nissan Sentra Service Manual: 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 switch) inspection
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 results normal? Yes >> go to 2
No >> repair or replace the malfunctioning part.
2.Check headlamp (hi) request signal input
Consult data monitor
- Select hl hi req of ipdm e/r data monitor item.
- While operating the lighting switch, check the monitor status.
Is the inspection results 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 (hi) circuit inspection
Check the headlamp (hi) circuit. Refer to exl-88, "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.
Exterior lighting system symptoms
Symptom Table
Caution:
Perform the self-diagnosis with consult before the symptom diagnosis.
Perform the trouble diagnosis
if any dtc is detected.
Normal operating condition
Description ...
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 ...
Other materials:
P1556, P1557 Battery temperature sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P1556 or P1557 is displayed with DTC P0643, first perform the
trouble diagnosis for DTC P0643.
Refer to EC-353, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible caus ...
Wiring diagram
Interior room lamp control system
Wiring diagram
Illumination
Wiring diagram
...
Air cleaner and air duct
Exploded View
Mass air flow sensor
Mass air flow gasket
Clamp
Air duct (suction side)
Resonator
Clamp
PCV hose
Clamp
Clamp
Air cleaner cover
Mounting rubber
Air cleaner filter
Air cleaner body
Air duct inlet (lower)
Air duct inlet (upper)
Mounting rubber
Brack ...
