Nissan Altima (L32) 2007-2012 Service Manual: On-vehicle maintenance
Function diagnosis
LUBRICATION SYSTEM
Lubrication Circuit
Schematic
1. Oil pan
2. Oil strainer
3. Oil pump
4. Regulator valve
5. Oil filter
6. Relief valve (Built in oil filter)
7. Oil cooler
8. Bypass
9. ...
Engine oil
Inspection
OIL LEVEL
• Before starting the engine, check the oil level. If the engine is
already started, stop it and allow 10 minutes before checking.
• Check that the oil level is within ...
Other materials:
P0448 evap canister vent control
valve
Description
The EVAP canister vent control valve is located on the EVAP canister
and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the c ...
Engine coolant temperature gauge
The gauge indicates the engine coolant temperature.
The engine coolant temperature is within the
normal range 1 when the gauge needle points
within the zone shown in the illustration.
The engine coolant temperature varies with the
outside air temperature and driving conditions.
CAUTION
...
Front door speaker (sedan)
Description
The audio unit sends audio signals to the front door speakers using the
door speaker circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect audio unit connector M43 (A) and suspect speaker
connector (B).
2. Check continuity between audio unit harness connector M43 (A)
t ...
