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:

    Hands Free Switch. Repair procedures
    Inspection 1. Check the hands free remote control switch for resistance between No.3 and No.4 terminals in each switch position. ...

    Washer fluid
    Checking the washer fluid level The reservoir is translucent so that you can check the level with a quick visual inspection. Check the fluid level in the washer fluid reservoir and add fluid if ...

    Battery replacement
    The transmitter uses a 3 volt lithium battery which will normally last for several years. When replacement is necessary, use the following procedure. 1. Insert a slim tool into the slot and gen ...