Hyundai Sonata: 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: To resume Smart Cruise Control set speed
If any method other than the CRUISE toggle switch was used to cancel cruising speed and the system is still activated, the cruising speed will automatically resume when you push the toggle switch up (RES+) or down (SET-). If you push the toggle switch up (RES+), the speed will resume to the recen ...

Hyundai Sonata LF 2014-2019 Service Manual: Specifications
Specifications ItemSpecificationMaster cylinderTypeSingleI.D. mm(in)NON EPB ?22.22mmEPB?23.81mmPiston stroke mm(in)45±1mm(1.77±0.039in)Fluid level sensorProvidedBrake booster?Type11" SingleBoosting ratio9:01Front disc brakeTypeVentilated discDisc O.DGAMMA1.6 T-GDI305mm (12.0078 in)THETA2 ...

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