Hyundai Sonata: 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
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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 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Hazard Lamp Switch Repair procedures
Inspection 1. Check for continuity between terminals. If the continuity is not as specified, replace the hazard lamp switch. AVN typeAudio typeNoDescription NoDescription 1GND1GND 2CAN _ High 2-3CAN _ Low 3- 4- 4-5Detent 5Detent 6ACC6Acc 7Battery (+)7Battery (+)8PAB Off 8PAB Off 9 ...

Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem. The numbers indicate the priority ...

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