Nissan Sentra Service Manual: The door open warning continues displaying, or does not display
Description
- The door ajar warning is displayed even though all of the doors are closed.
- The door ajar warning is not displayed even though a door is ajar.
Diagnosis procedure
1.Check bcm input signal
Check the bcm input signal. Refer to dlk-102, "component function check" (with intelligent key) or dlk- 253, "component function check" (without intelligent key).
Is the inspection result normal? Yes >> go to 2.
No >> go to 3.
2.Check combination meter input signal
Select the METER/M&A Data Monitor and check the DOOR W/L monitor value while opening and closing doors.
Is the inspection result normal? YES >> Replace combination meter. Refer to MWI-77, "Removal and Installation".
NO >> Replace BCM. Refer to BCS-73, "Removal and Installation" (with Intelligent Key) or BCS-126, "Removal and Installation" (without Intelligent Key).
3.Check door switch signal circuit
Check the door switch signal circuit. Refer to dlk-102, "diagnosis procedure" (with intelligent key) or dlk- 253, "diagnosis procedure" (without intelligent key).
Is the inspection result normal? Yes >> go to 4.
No >> repair or replace harness or connector.
4.Check door switch
Perform a unit check for the door switch. Refer to DLK-103, "Component Inspection" (with Intelligent Key) or DLK-255, "Component Inspection" (without Intelligent Key).
Is the inspection result normal? YES >> Replace combination meter. Refer to MWI-77, "Removal and Installation".
NO >> Replace applicable door switch. Refer to DLK-194, "Removal and Installation" (with Intelligent Key) or DLK-341, "Removal and Installation" (without Intelligent Key).
The oil pressure warning lamp does not turn off
Description
The oil pressure warning lamp remains illuminated while the engine is running
(normal oil pressure).
Diagnosis procedure
1.Check combination meter input signal
Start the engine a ...
The parking brake release warning continues displaying, or does not display
Description
The parking brake warning is displayed while driving the vehicle even
though the parking brake is released.
The parking brake warning is not displayed while driving the vehicle
...
Other materials:
P0078 EVT Control solenoid valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0078
EX V/T ACT/CIRC-B1
(Exhaust valve control solenoid circuit
bank 1)
An improper voltage is sent to the ECM
through exhaust v ...
A-bag branch line circuit
Diagnosis procedure
Warning:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch off, disconnect battery
negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
Never use unspecified tester or other me ...
Power windows do not operate with power window main switch
Diagnosis Procedure
1.Check bcm power supply and ground circuit
Check bcm power supply and ground circuit.
Refer to bcs-67, "diagnosis procedure" (with intelligent key) or bcs-120,
"diagnosis procedure" (without
intelligent key).
Is the inspection result normal?
Yes & ...
