Hyundai Sonata: Ignition System / Ignition Coil Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Electrical System / Ignition System / Ignition Coil Description and Operation

Description

An ignition coil is an induction coil in an engine's ignition system which transforms the battery's low voltage to the high voltage needed to create an electric spark in the spark plugs to ignite the fuel. Coils have an internal resistor while others rely on a resistor wire or an external resistor to limit the current flowing into the coil from the battery 12 V supply.

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 ...

Ignition Coil Specifications

Specification ItemSpecification Primary Coil Resistance (?)0.56 ± 10% [20°C (68°F)]Secondary Coil Resistance (k?)2.0 ± 15% [20°C (68°F)] ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Driver assist system
Rear View Camera The Rear View Camera will activate when the engine is running and the shift lever is in the R (Reverse) position. This is a supplemental system that shows behind the vehicle through the navigation display while backingup. WARNING The Rear View Camera is not a safety device. It o ...

Hyundai Sonata LF 2014-2019 Owners Manual: Instrument panel overview
1. Light control/Turn signals 2. Steering wheel audio controls*/ Bluetooth® wireless technology hands-free controls 3. Instrument cluster 4. Driver's front air bag 5. Horn 6. Cruise controls 7. Wiper/Washer 8. Engine Start/Stop button/ Key ignition switch 9. Audio system/Navigation system 10. Clim ...