Nissan Altima 2007-2012 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 and the trunk are closed.
• The door ajar warning is not displayed even though a door or the trunk is ajar.
Diagnosis Procedure
1.CHECK BCM INPUT SIGNAL
Connect CONSULT-III and check the BCM input signals. Refer to the following: • Door switch - coupe: DLK-69, "Component Function Check" • Door switch - sedan: DLK-293, "Component Function Check" • Trunk lamp switch and trunk release solenoid - coupe: DLK-93, "Component Function Check" • Trunk lamp switch and trunk release solenoid - sedan: DLK-316, "Component Function Check" Is the inspection result normal? YES >> GO TO 2
NO >> GO TO 3
2.CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Monitor “DOOR W/L” and “TRUNK/GLAS-H” of “DATA MONITOR” while opening and closing doors and trunk.
Is the inspection result normal? YES >> Replace combination meter. Refer to MWI-176, "Removal and Installation".
NO >> Replace BCM. Refer to BCS-96, "Removal and Installation".
3.CHECK DOOR SWITCH SIGNAL CIRCUIT
Check the door switch signal circuit. Refer to the following: • Coupe: DLK-69, "Diagnosis Procedure" • Sedan: DLK-293, "Diagnosis Procedure" Is the inspection result normal? YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK DOOR SWITCH UNIT
Perform a unit check for the door switch. Refer to the following: • Coupe: DLK-71, "Component Inspection" • Sedan: DLK-295, "Component Inspection" Is the inspection result normal? YES >> GO TO 5
NO >> Replace door switch.
5.CHECK TRUNK LAMP SWITCH AND TRUNK RELEASE SOLENOID SIGNAL CIRCUIT
Check the trunk lamp switch and trunk release solenoid signal circuit. Refer to the following: • Coupe: DLK-93, "Diagnosis Procedure" • Sedan: DLK-316, "Diagnosis Procedure"
Is the inspection result normal? YES >> GO TO 6
NO >> Repair harness or connector.
6.CHECK TRUNK LAMP SWITCH AND TRUNK RELEASE SOLENOID UNIT
Perform a unit check for the trunk lamp switch and trunk release solenoid. Refer to the following: • Coupe: DLK-94, "Component Inspection" • Sedan: DLK-318, "Component Inspection" Is the inspection result normal? YES >> Replace combination meter. Refer to MWI-176, "Removal and Installation".
NO >> Replace trunk lamp switch and trunk release solenoid.
The low washer fluid warning continues
displaying, or does not display
Description
• The warning is still displayed even after washer fluid is added.
• The warning is not displayed even though the washer tank is empty.
Diagnosis Procedure
1.CHECK WASHER LEVEL ...
The ambient temperature display is
incorrect
Description
• The displayed ambient air temperature is higher than the actual
temperature.
• The displayed ambient air temperature is lower than the actual temperature.
Diagnosis Procedure
...
Other materials:
P0451 evap control system pressure
sensor
Description
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pressure
increases.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously con ...
U120D DVD-ROM drive mecha
Description
Refer to AV-240, "System Description".
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK DVD-ROM
Check DVD-ROM for dirt, scratches and warpage.
Is the DVD-ROM clean and undamaged?
YES >> Replace AV control unit. Refer to AV-437, "Removal and Ins ...
Tumble control valve control
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*: ECM determines the start signal status by the signals of engine speed and
battery voltage.
SYSTEM DESCRIPTION
Tumble control valve has a valve portion in the intake passage of each
cylinder.
While idling and during low ...