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 Service Manual: Rear Seat Folding Lever Repair procedures
Replacement 1. Fold the rear seat back assembly (A) by pulling the folding lever in the direction of the arrow. 2. After loosening the mounting bolts, then remove the rear seat folding lever (A). 3. Install in the reverse order of removal. ...

Hyundai Sonata LF 2014-2019 Owners Manual: Lane keeping Assist System (LKAS)
The Lane Keeping Assist System helps detect the lane markers on the road with a camera at the front windshield, and assists the driver's steering to help keep the vehicle in the lanes. When the system detects the vehicle straying from its lane, it alerts the driver with a visual and audible warn ...