Hyundai Sonata LF: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Schematic Diagrams
| Circuit Diagram |
Engine Coolant Temperature Sensor (ECTS) Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Remove the ECTS (Refer to "Removal"). 3. After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 3 and 4...
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Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
Inspection [System Inspection] 1. Disconnect the vapor hose from the intake manifold and connect a vacuum pump to the nipple on the intake manifold. · At Cold Engine [Engine Coolant Temperature < 60°C(140°F)] EngineOperatingConditionAppliedVacuumResultIdleMin...
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...
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