1A-12 Engine General Information and Diagnosis:
Electronic Control System Description
S7RS0B1101011
The electronic control system consists of 1) various sensors which detect the state of engine and driving conditions, 2)
ECM which controls various devices according to the signals from the sensors and 3) various controlled devices.
Functionally, it is divided into the following sub systems:
• Fuel injection control system
• Ignition control system
• Electric throttle body control system
• Fuel pump control system
• Radiator cooling fan control system
• Evaporative emission control system
• EGR system
• Oxygen sensor heater control system
• A/C control system (A/C model)
• Camshaft position control system
• Immobilizer control system
• Generator control system
• Controller (computer) communication system
Especially, ECM, BCM, combination meter, TCM (A/T model), ABS/ESP® control module, steering angle sensor
(ESP® model) and keyless start control module (if equipped) intercommunicate by means of CAN communication.
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