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:
Door Ajar Warning Light
Purpose
The door-ajar warning light notifies the driver that any door or the liftgate
is open.
Function
When the instrument cluster receives any of the following signals sent from
the rear body control module (RBCM) via the CAN signal, the door-ajar warning
light illumin ...
Electric Variable Valve Timing Actuator
Purpose, Function
The electric variable valve timing actuator changes the phases of the intake
camshaft relative to the crankshaft. As a result, the open/close period of the
intake valve is changed, optimized valve timing in accordance with driving conditions
is realized, output is i ...
Car Navigation System Does Not Start Operation [Car Navigation System]
Possible DTC
Even if the NAVI mode is selected, the car-navigation system screen does
not display.
POSSIBLE CAUSE
NAV switch malfunction
Power supply fuse (+B, ACC) burnt out
Open or short circui ...
