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:
Steering Assist display and indicators
1. Steering Assist indicator
This primary indicator provides a visual reference for the current operational state of the Steering Assist system, distinguished by its color:
Gray: Steering Assist is in standby mode and ready to be engaged.
Green: Ste ...
EVSE (Electric Vehicle Supply Equipment) control box indicator light
During the charging process, the EVSE control box provides dedicated status updates through its own indicator lights. These lights serve as your primary diagnostic tool to verify proper operation and are designed to alert you immediately if a malfunction is detected in the EVSE ...
How to read the displayed lines
Guiding lines which indicate the vehicle width and distances to objects with
reference to the bumper lineA are displayed on the monitor.
Distance guide lines:
Indicate distances from the bumper.
• Red line1 : approx. 1.5 ft (0.5 m)
• Yellow line2 : approx. 3 ft (1 m)
• Green line3 : a ...
