Hyundai Sonata: Ignition System / Description and Operation

Description
Ignition timing is controlled by the electronic control ignition timing system.
The standard reference ignition timing data for the engine operating conditions are pre-pro grammed in the memory of the ECM (Engine Control Module).
The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM.
The ignition coil is activated, and timing is controlled.
Ignition System
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Repair procedures
On-vehicle Inspection Inspect ignition coil assembly and Perform spark test 1. Check for DTCs.     • If a DTC is present, perform troubleshooting in accordance with the ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Auto Head Lamp Leveling Unit Description and Operation
Description According to driving environment and loading state of vehicle, head lamp lighting direction is changed to keep the driver's visibility range and to protect the driver's vision from glare, aiming at safety driving. Sensor integrated ECU mounting on the rear center arm drives ...

Hyundai Sonata LF 2014-2019 Service Manual: Air Cleaner Components and Components Location
Components 1. Air duct2. Air intake hose3. Air cleaner body4. Air cleaner element5. Air cleaner element service cover ...

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