Nissan Altima 2007-2012 Service Manual: Malfunction indicator lamp
Description
The Malfunction Indicator Lamp (MIL) is located on the combination meter.
The MIL will illuminate when the ignition switch is turned ON without the engine running. This is a bulb check.
When the engine is started, the MIL should turn off. If the MIL remains illuminated, the on board diagnostic system has detected an engine system malfunction.
For details, refer to EC-1142, "Diagnosis Description".
Component Function Check
1.CHECK MIL FUNCTION
1. Turn ignition switch ON.
2. Check that MIL illuminates.
Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-1496, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform trouble diagnosis for DTC UXXXX. Refer to EC-1179, "Description".
2.CHECK COMBINATION METER FUNCTION
Refer to MWI-95, "DTC Index".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace.
3.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Replace combination meter.
NO >> Repair or replace.
Ignition signal
Description
The ignition signal from the ECM is sent to and amplified by the power
transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induce ...
On board refueling vapor recovery (ORVR)
Description
From the beginning of refueling, the air and vapor inside the fuel tank go
via the refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by th ...
Other materials:
Power window system
System Diagram
POWER WINDOW ANTI-PINCH SYSTEM
System Description
POWER WINDOW MAIN SWITCH
INPUT/OUTPUT SIGNAL CHART
POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
INPUT/OUTPUT SIGNAL CHART
POWER WINDOW OPERATION
• Power window system is operable during the retained power operation timer
...
P0643 Sensor power supply
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform
the following before conducting
the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
...
B2192, P1611 ID discord, immu-ECM
Description
BCM performs the ID verification with ECM that allows the engine to start.
Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts
the communication with ECM if
ignition switch is turned ON.
DTC Logic
DTC DETECTION LOGIC ...
