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:
On board diagnostic (OBD) System
Diagnosis Description
INTRODUCTION
The ECM has an on board diagnostic system, which detects malfunctions related
to engine sensors or actuators.
The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in t ...
Headlamp
Description
Headlamp lighting when theft warning system is in alarm phase.
Component Function Check
1.CHECK HEADLAMP OPERATION
Check if headlamps operate by lighting switch.
Does headlamp come on when turning switch “ON”?
YES >> Headlamp circuit is OK.
NO >> Check headlam ...
P0300, P0301, P0302, P0303, P0304, P0305, P0306 Misfire
DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
The misfire detection logic consists of the following t ...