Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
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Prevents release of blow-by gas (unburnt gas) into the atmosphere.
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The PCV valve is open/closed by the intake manifold vacuum.
Construction
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The PCV valve is installed to the oil separator.
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The PCV valve consists of a spring and valve.
Operation
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When the valve is pulled by the intake manifold vacuum, blow-by gas flows to the intake manifold.
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Blow-by gas flow amount is adjusted by the spring according to the intake manifold vacuum.
Positive Crankcase Ventilation (PCV) Valve Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the intake manifold..
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
1
...
Purge Solenoid Valve Inspection
Airflow Inspection
1. Disconnect the negative battery cable..
2. Remove the purge solenoid valve..
3. Inspect airflow between the ports under the following conditions.
...
Other materials:
Rear Wiper System
Outline
Equipped with continuous, auto-stop, intermittent wiper, and synchronized
washer and wiper operation.
The front body control module (FBCM) performs rear wiper and washer system
fail-safe..
Structural View
System Wiring Diagram
Operation
Continuous operat ...
Air Bag Module And Pre Tensioner Seat Belt Deployment Procedures [Two Step Deployment
Control System]
WARNING:
A live (undeployed) air bag module, pre-tensioner seat belt or lap pre-tensioner
seat belt may accidentally operate (deploy) when it is disposed of and cause
serious injury. Do not dispose of a live (undeployed) air bag module, pre-tensioner
seat belt or lap pre-tensioner s ...
Heated Oxygen Sensor (HO2 S) Inspection
HO2S Inspection
1. Connect the M-MDS to the DLC?2.
2. Switch the ignition ON (engine on).
3. Warm up the engine to normal operating temperature.
4. Access the following PIDs using the M-MDS..
VSS (Vehicle speed)
RPM (Engine speed)
O2S12 (HO2S output voltage)
5. D ...
