Possible reasons for the lack of electrics in the car:
Low battery:
* Check the battery voltage using a voltmeter. It should be around 12.6 volts.
* Charge or replace the battery if necessary.
Problems with battery cables or terminals:
* Inspect wires and terminals for corrosion, breaks or loose connections.
* Clean and tighten all connections.
Faulty starter:
*When you try to start the engine, you may hear a clicking or buzzing sound, but the engine will not start.
* Replace the starter.
Ignition circuit malfunction:
* Check the ignition coil, spark plugs and spark plug wires.
* Replace faulty components.
Electronic control unit (ECU) failure:
* The ECU is responsible for managing the vehicle’s electrical systems.
* If the ECU is faulty, problems with engine starting, lighting and other electrical functions may occur.
*ECU diagnostics and reprogramming may be required.
Grounding faults:
* Poor grounding can lead to various electrical problems.
* Inspect ground wires and connections for corrosion or looseness.
Damage to electrical wiring:
* Rodents, vibrations or other factors can damage electrical wiring.
* Inspect wiring for breaks, wear or damage.
Relays and fuses:
* Check relays and fuses for burnout or malfunction.
* Replace faulty relays and fuses.
Diagnostics and troubleshooting:
* Use your vehicle’s repair manual to find wiring diagrams and diagnostic procedures.
*Proper diagnosis and repair may require special equipment such as a trouble code scanner.
Precautions:
* Always disconnect the negative terminal of the battery before working on the vehicle’s electrical systems.
* Use caution when handling electrical equipment as it may contain high voltage.
*If you are unsure of your skills, consult a qualified mechanic.