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


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:

    AV branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the AV control unit for damage, bend and loose connection (unit side and connector side). I ...

    Power consumption control system
    System Diagram System Description OUTLINE • BCM incorporates a power saving control function that reduces the power consumption according to the vehicle status. • BCM switches the status (control mode) by itself with the power saving control function. It performs the sleep r ...

    Reverse idler shaft and gear
    Exploded View Refer to TM-28, "Exploded View". Disassembly 1. Remove reverse idler gear (Rear), reverse coupling sleeve, and reverse insert spring simultaneously. 2. Remove reverse idler gear needle bearing. 3. Remove thrust needle bearing. 4. Remove reverse baulk ring. 5 ...