Nissan Altima Owners Manual: Underbody
In areas where road salt is used in winter, it is necessary to clean the underbody regularly in order to prevent dirt and salt from building up and causing the acceleration of corrosion on the underbody and suspension. Before the winter period and again in the spring, the underseal must be checked and, if necessary, retreated.
Removing spots
Remove tar and oil spots, industrial dust, insects,
and tree sap as quickly as possible from the
surface of the paint to avoid lasting damage or
staining. Special cleaning products are available
a ...
Glass
When cleaning the rear window, it may be easier
to clean if the high-mounted stop light (if so
equipped) is removed first.
Be careful when removing the high-mounted
stop light to reduce the ri ...
Other materials:
B2193, P1612 chain of ECM-IMMU
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 LOGI ...
Fuel injector
Description
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injector
is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
...
P0456 Evap control system
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0456 is displayed with DTC P0442, first perform the trouble diagnosis
for DTC P0456.
This diagnosis detects very small leakage in the EVAP line between fuel tank and
EVAP canister purge volume
control solenoid valve, using the negative pressure. ...
