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:
Rear tweeter (coupe)
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio
signals before sending them to the rear tweeters using the audio signal
circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connectors B121, B122 and
...
Precaution
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
dr ...
P0327, P0328, P0332, P0333 KS
Description
The knock sensor is attached to the cylinder block. It senses engine knocking
using a piezoelectric element. A
knocking vibration from the cylinder block is sensed as vibrational pressure.
This pressure is converted into a
voltage signal and sent to the ECM.
DTC Logic
DTC DETECT ...