4.3 Emission control system

☆Objectives

·Understand the control principle and logic of emission control system;

·Identify and know the components and functions of emission control system well;

·Be able to judge and inspect the performances of main components of emission control system;(https://www.daowen.com)

·Diagnose the relative failures of emission control system effectively by using the knowledge and test methods of emission control system.

☆Resources

·Equipments:CX70 vehicle,universal meter,test lamp,diagnostic unit,relative electronic components

·Documents:CX70 supplementary circuit diagram and maintenance manual