Possible reasons:
* Low battery: Check the battery using a tester or portable leads from another vehicle.
*Faulty Starter: The starter may be faulty, causing the engine to fail to start.
*Wiring Problems: Broken wires, loose connections, or corrosion can interrupt current flow.
* Faulty alternator: The alternator does not charge the battery, resulting in gradual discharge.
* Damaged Electronic Control Unit (ECU): The ECU controls various electrical functions of the vehicle and its malfunction can lead to electrical malfunctions.
* Ignition Coils: Faulty ignition coils can interfere with the spark supply to the spark plugs, resulting in difficult starting or rough running of the engine.
Actions to identify and correct the problem:
* Battery Health Test: Using a tester or portable leads from another vehicle, check if the battery voltage is sufficient to start the engine.
* Inspect the starter: Try starting the engine by tapping the starter with the handle of a screwdriver or a hammer. If the engine starts, the starter may need to be repaired or replaced.
*Visual Wiring Inspection: Check for visible breaks, loose connections, or corrosion in the wires under the hood and inside the vehicle.
* Alternator Test: Using a voltmeter, measure the alternator voltage with the engine running. It should be about 14 volts.
* ECU Diagnosis: Diagnosis of ECU faults may require special diagnostic equipment.
* Checking the ignition coils: Using a tester or multimeter, check the resistance and integrity of the ignition coils.
If you do not have electrical experience, it is recommended that you contact a qualified mechanic for diagnosis and repair.