Nissan Juke Service and Repair Manual : Structure and operation
Positive Crankcase Ventilation
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not meet the requirement. This is because some of the flow will go through the hose connection to the air inlet tubes under all conditions.
Component parts
Engine control system : Component Parts Location 1. IPDM E/R Refer to PCS-5, "Component Parts Location". 2. Battery current sensor (with battery temperature sensor) 3. Mass air flow ...System
Engine control system : System Diagram Engine control system : System Description ECM performs various controls such as fuel injection control and ignition timing control. MULTIPORT FUEL INJE ...Other materials:
A/C indicator
Diagnosis Procedure
1.CHECK SYMPTOM
Check symptom.
A/C indicator dose not turn ON>>GO TO 2.
A/C indicator dose not turn OFF>>GO TO 6.
2.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No. 15, located in fuse block (J/B)].
NOTE:
Refer to PG-22, "Fuse, Conn ...
U0101 Can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each c ...
B terminal circuit
Description
“B” terminal circuit supplies power to charge the battery and to operate the
vehicle’s electrical system.
Diagnosis Procedure
1.CHECK “B” TERMINAL CONNECTION
1. Turn ignition switch OFF.
2. Check if “B” terminal is clean and tight.
Is the inspection result normal?
YES >> ...