Nissan Sentra Service Manual: Positive crankcase ventilation
Inspection
1.CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A strong vacuum should be felt immediately when a finger is placed over valve inlet.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace PCV valve. Refer to EC-15, "ENGINE CONTROL SYSTEM : Component Parts Location".
Evap leak check
Inspection
CAUTION:
Do not use compressed air or a high pressure pump.
Do not exceed 4.12 kPa (0.042 kg/cm2, 0.6 psi) of pressure in EVAP
system.
NOTE:
Do not start engine.
Improper ...
Removal and installation
Ecm
Exploded View
ECM bracket
ECM
Engine mounting insulator bracket
Removal and Installation
CAUTION:
Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to EC-135, "Work
Pro ...
Other materials:
System description
Component parts
AUTOMATIC DOOR LOCK/UNLOCK FUNCTION
AUTOMATIC DOOR LOCK/UNLOCK FUNCTION
: Component Parts Location
BCM
(view with instrument panel removed)
Main power window and door lock/unlock
switch
Power window and door lock/unlock
switch RH
Front door lock key cylinder ...
Installing front license plate
Use the following steps to mount the front license
plate:
Make holes on the plastic finisher at the
location mark (small dimple) using a 0.20 in
(5 mm) drill. Apply light pressure to the drill.
Install the license plate holder using the two
screws provided with the holder.
Mount ...
DTC/Circuit diagnosis
U0073 COMMUNICATION BUS A OFF
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
U0073
COMM BUS A OFF
(Control Module Communication
Bus A Off)
TCM communication blockage lasts for 2 sec ...
