Hyundai i-30: Ignition System / Description and operation

The ignition coil is a kind of small transformer that transforms the battery voltage to 30 kV or more to create a spark in the spark plug gap in the cylinder.

The igniter embedded in the ignition coil includes the power transistor and it is an electronic switch whose electric current is controlled by the Engine Control Module (ECM) signal.

The ignition timing is controlled by the ECM and the standard ignition timing data depending on the engine operating condition is stored in the ECM memory.

The engine operating conditions (speed, load, warm-up state, etc.) are detected by the various sensors.

Based on these sensor signals and the ignition timing data, when the ECM applies the ignition signal to the ignition coil for a certain period of time, igniter is energized and current flows and rises gradually to the primary coil and the magnetic filed is produced.

When the current in the primary coil is cut off by the ignition signal of the ECM, the rapid change of the magnetic flux by the mutual induction action is induced to the secondary coil and high voltage is generated depending on the coil winding ratio.

This high voltage generated from the secondary coil is caught in the spark plug gap and discharges as the electric field is destroyed to generate a spark.

Ignition System

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Troubleshooting

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Other information:

Hyundai i30 (PD) 2018-2025 Service Manual: Audio Unit

Components and components location Components Audio Connector Pin Information NO Connector A Connector B 1 Rear left speaker (+) - 2 Front left speaker (+) - 3 Front right speaker (+) - 4 Rear right speaker (+) Steering wheel key 5 - - 6 Door open USB data (HI) 7 IGN 1 USB VCC 8 ILL (+) - 9 DETENT - 10 Rear left speaker (-) MIC signal (+) 11 Front left speaker (-) ACC 12 Front right speaker (-) Battery (+) 13 Rear right speaker (-) - 14 - - 15 - - 16 - Speed 17 ILL (-) Steering wheel key GND 18 Antenna Power USB data (LOW) 19 USB GND 20 - 21 - 22 MIC signal (-) 23 - 24 GND Display Audio Connector Pin Information No Connector A Connector B 1 Rear door speaker (Left +) - 2 Rear door speaker (Left -) Mic_Signal (+) 3 USB Ground - 4 USB Data_High - 5 USB Data_Low Antenna power 6 USB_VCC Illumination (+) 7 Camera video MM CAN (High) 8 - - 9 - - 10 AUX Audio R Battery (+) 11 AUX Detect Battery (+) 12 Steering wheel remote Ground 13 Front door speaker (Left +) Ground 14 Front door speaker (Left -) Mic_Ground 15 Front door speaker (Right -) Mic_Signal (-) 16 Front door speaker (Right +) - 17 - - 18 - Vehicle speed 19 - Illumination (-) 20 Camera power ground MM CAN (Low) 21 Camera video ground - 22 - ACC 23 - - 24 AUX Audio L - 25 AUX Audio ground - 26 Steering wheel remote grond Door open 27 Rear door speaker (Right -) - 28 Rear door speaker (Right +) - 29 - - 30 - - 31 - - 32 Camera power ground IGN 1 33 Camera shield ground - 34 - - 35 - - 36 Camera_Detect 37 - 38 - Repair procedures Removal    • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components...

Hyundai i30 (PD) 2018-2025 Owner's Manual: Manual climate control system

To defog inside windscreen 1. Select any fan speed except “0” position. 2. Select the desired temperature. 3. Select the or position. 4. The outside (fresh) air will be selected automatically. Additionally, the air conditioning (if equipped) will automatically operate if the mode is selected to the position...