Mazda CX-5 Service & Repair Manual: Exhaust Gas Purification System
Purpose, Outline
-
Purifies contaminants (HC, CO, NOx) in the exhaust gas by utilizing the chemical reactions of the three-way catalytic converter.
System Diagram
Structure
-
The exhaust gas purification system consists of the following parts:
|
Part name |
Reference |
|
WU-TWC |
(See CATALYTIC CONVERTER [SKYACTIV-G 2.0].) |
|
TWC |
Evaporative Emission (Evap) Control System
Purpose, Outline
Prevents release of evaporative gas into the atmosphere.
The intake manifold vacuum introduces evaporative gas to the intake manifold
via the charcoal canister and t ...
Positive Crankcase Ventilation (PCV) System
Purpose, Outline
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The intake manifold vacuum introduces blow-by gas to the intake manifold
via the PCV valve and the ...
Other materials:
Accessory Socket
Purpose
By inserting the plug of an electrical device, 12 V (maximum 120 W) of power
is supplied enabling use of the electrical device in the vehicle.
Function
Front accessory socket
When the ignition is switched to ACC or ON (engine off or on), 12 V (maximum
120 W) of pow ...
Air Bag System Warning Alarm [Two Step Deployment Control System]
Purpose
The air bag system warning alarm notifies the driver that a malfunction occurred
in the air bag system instead of the air bag system warning light.
Function
If a malfunction occurs in the air bag system while the air bag system warning
light cannot illuminate, the a ...
Electric Power Steering (Eps) Control Module
Purpose/ Function
The EPS control module (CM) calculates the optimum assist current based on
the steering torque signal from the torque sensor installed to the steering
column and the vehicle speed signal sent via CAN transmission from the PCM.
The EPS CM controls the following ...
