Nissan Altima 2007-2012 Service Manual: Malfunction indicator lamp

Description

The Malfunction Indicator Lamp (MIL) is located on the combination meter.

The MIL will light up when the ignition switch is turned ON without the engine running. This is a bulb check.

When the engine is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has detected an engine system malfunction.

For details, refer to EC-475, "Diagnosis Procedure".

Component Function Check

1.CHECK MIL FUNCTION

1. Turn ignition switch ON.

2. Make sure that MIL lights up.

Is the inspection result normal? YES >> INSPECTION END

NO >> Go to EC-475, "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.

2.CHECK DTC WITH METER

Refer to MWI-38, "CONSULT-III Function (METER/M&A)".

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 induc ...

    On board refueling vapor recovery (ORVR)
    Description From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by th ...

    Other materials:

    Sound signal circuit (sedan)
    SATELLITE RADIO TUNER  Description Left and right channel audio signals are supplied from the satellite radio tuner to the audio unit through the sound signal circuits. Diagnosis Procedure LEFT CHANNEL 1.CHECK HARNESS 1. Turn ignition switch OFF. 2. Disconnect satellite radio tune ...

    Engine control system
    System Diagram System Description ECM performs various controls such as fuel injection control and ignition timing control. Component Parts Location 1. Intake valve timing control solenoid valve 2. Ignition coil (with power transistor) and spark plug 3. Knock sensor, Crankshaft posi ...

    Rapid air pressure loss
    Rapid air pressure loss or a “blow-out” can occur if the tire is punctured or is damaged due to hitting a curb or pothole. Rapid air pressure loss can also be caused by driving on under-inflated tires. Rapid air pressure loss can affect the handling and stability of the vehicle, especial ...