Hyundai Sonata LF: Ignition System / Description and Operation

Hyundai Sonata LF 2014-2019 Service 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 pre-pro grammed 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.

Ignition System

Repair procedures

On-vehicle Inspection Inspect ignition coil assembly and Perform spark test 1. Check for DTCs. • If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Engine And Transmission Assembly Repair procedures

Removal 1. Remove the engine cover. 2. Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") 3. Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner") 4. Remove the engine room under cover...

Hyundai Sonata LF 2014-2019 Service Manual: Rear Bumper