Hyundai Sonata: Description and Operation - Ignition System - Engine Electrical SystemHyundai Sonata: 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 preprogrammed 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.

    Repair procedures
    On-vehicle Inspection Spark Test 1. Disconnect the ignition coil connectors (A). 2. Remove the ignition coils (A). ...

    See also:

    Active ECO operation
    Active ECO helps improve fuel efficiency by controlling the engine and transaxle. But fuel-efficiency can be changed by the driver's driving habits and road conditions. When the Active E ...

    Disarmed stage
    Using the smart key The system will be disarmed when the doors are unlocked by pressing the unlock button on the smart key or pressing the lock/unlock button of the front outside door handle with ...

    Illuminated ignition switch
    Whenever a front door is opened, the ignition switch will be illuminated for your convenience, provided the ignition switch is not in the ON position. The light will go off immediately when th ...