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
    Teaching Procedures 1. Key Teaching Procedure Key teaching must be done after replacing a defective PCM(ECM) or when providing additional keys to the vehicle owner ...

    Relay Box (Passenger Compartment). Repair procedures
    Fuse Inspection 1. Be sure there is no play in the fuse holders, and that the fuses are held securely. 2. Are the fuse capacities for each ...

    Changing tires
    1. Park on a level surface and apply the parking brake firmly. 2. Shift the shift lever into R (Reverse) with manual transaxle or P (Park) with automatic transaxle. 3. Activate the hazard warn ...