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). ...

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    Repair procedures
    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the trunk lide trim. (Refer to Body - "Trunk Lid Trim") 3. Disconnect the back view camera connector (A). 4. Remove ...

    Fuel Pump Motor Repair procedures
    Removal 1. Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump") 2. Disconnect the electric pump wiring connector (A), and the fuel sender connector (B). 3. Remove the rese ...

    Digital clock
    WARNING Do not adjust the clock while driving. You may lose your steering control and cause an accident that results in severe personal injury or death. Whenever the battery terminals or relat ...