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:
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 ...
Diagnosis description : malfunction indicator lamp (MIL)
When emission-related ECU detects a malfunction in the emission
control systems components and/or the powertrain control components
(which affect vehicle emissions), it turns on/blinks MIL to
inform the driver that a malfunction has been detected.
The MIL illuminates when ignition switch is t ...
Main line between dlc and hvac circuit
Diagnosis procedure
1.Check harness continuity (open circuit)
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
Ecm
A/C auto amp.
Check the continuity between the data link connector and the A/C ...
