Trouble diagnosis for unusual pressure
Diagnose using a manifold gauge whenever system’s high and/or low side pressure(s) is/are unusual. The marker above the gauge scale in the following tables indicates the standard (usual) pressure range. Refer to above table (Ambient air temperature-to-operating pressure table) since the standard (usual) pressure, however, differs from vehicle to vehicle.
Symptom table


Heater and air conditioning system symptoms
NoiseDoor switch
With intelligent key
WITH INTELLIGENT KEY : Component Function Check
1.Check function
Select DOOR LOCK of BCM using CONSULT.
Select DOOR SW-DR, DOOR SW-AS, DOOR SW-RL and DOOR SW-RR in DATA MONITOR
mode.
Check that the function operates normally according to the following
conditions ...
P0420 Three way catalyst function
DTC Logic
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage c ...
Tire equipment
SUMMER tires have a tread designed to
provide superior performance on dry pavement.
However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your vehicle
on snowy or icy roads, NISSAN recommends
the use of MUD & SNOW or ALL
...