Hyundai Ioniq (AE): Ignition System / Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair 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 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.

    On-vehicle InspectionSpark test1.Check for DTCs.    â€¢ If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC.

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    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Evaporator Temperature Sensor. Repair procedures

    Inspection1.Turn the ignition switch OFF.2.Disconnect the evaporator temperature sensor connector.3.Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.Specification Evaporator core temperature [°C (°F)] Resistance [KΩ]

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Front Radar Unit. Repair procedures

    Removal1.Remove the front bumper.(Refer to Body - "Front Bumper")2.Disconnect the smart cruise control unit connector (A).3.Remove the smart cruise control nuit assembly (B) from thevehicle after loosening mounting bolts.Installation1.Install in the reverse order of removal.

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