Hyundai Sonata LF: Ignition System / Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Electrical System / 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 procedure for that DTC...

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    Hyundai Sonata LF 2014-2019 Service Manual: Airbag Module Disposal Description and Operation


    Airbag Disposal Special tool required Deployment tool 0957A-34100A Before scrapping any airbags or side airbags (including those installed in vehicle to be scrapped), the airbags or side airbags must be deployed. If the vehicle is still within the warranty period, before deploying the airbags or side airbags, the Technical Manager must give approval and/or special instruction...

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