Hyundai Sonata LF: Engine Control System / Intake Air Temperature Sensor (IATS) Repair procedures

Intake Air Temperature Sensor (IATS) Schematic Diagrams

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Ambient Temperature Sensor (ATS) Description and Operation

Description Ambient Temperature Sensor (ATS) is installed on the front-end module and senses the ambient temperature. ECM receives not only the intake air temperatue but also the ambient air temperature informations at the same time to control the intake air quantity precisely provided through the turbo charger...

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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: Stop Signal Electronic Module Repair procedures

Inspection 1. Fuse inspection Mount the test fuse to the switch fuse and relay fuse part to confirm a normal joint fit. 2. Inspection of connector by each part Check to see whether or not each connector has been damaged, or terminal surge, or incomplete connection has taken place [Engine room junction box] [Stop signal electronic module] [ABS/VDC control module] 3...