Hyundai Sonata LF: Engine Control / Fuel System

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System

Exhaust Emission Control System

Description and Operation Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components...

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Hyundai Sonata LF 2014-2019 Service Manual: Alternator Schematic Diagrams


Circuit Diagram     • COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a PWM signal.(High voltage: 4V or higher, low voltage: 2V or lower) • FR signal - The transistor activation signal inside the alternator monitors the voltage generated by the alternator to control the excitation current before it sends the FR signal to the ECM...

Hyundai Sonata LF 2014-2019 Service Manual: Electric WGT Control Actuator Description and Operation


Desrcription The Electric WGT Control Actuator is installed on the turbocharger.It operates the vain in the Waste Gate Turbocharger (WGT) and regulates the compressed air amount by the ECM's PWM signal. This actuator consists of a DC motor which actuates the vane, a 2-step gear which increases torque of the DC motor, a position sensor which detects status of the vane, an electric control unit which drives the DC motor...

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