Possible reasons that the car does not start and the electrics do not work:
Battery problems
*Dead battery
* Faulty battery terminals
*Damaged or weakened battery
Problems with the generator
* Faulty generator
* Damaged or loose alternator drive belt
* Faulty voltage regulator
Electrical system problems
* Faulty ignition switch
*Blown fuse or relay
* Damaged wiring
* Faulty electronic device
Problems with the fuel system
* Empty fuel tank
* Clogged fuel filter
* Faulty fuel pump
* Damaged fuel lines
Other Possible Causes
* Faulty starter
* Frozen fuel
* Failure of the synchronization mechanism
* Immobilizer security system malfunction
Troubleshooting steps:
1. Check the battery: Make sure the battery terminals are clean and securely tightened. Measure the battery voltage with a voltmeter; it should be around 12.6V.
2. Charge or replace the battery: If the battery is low, charge it or replace it with a new one.
3. Check the generator: Start the engine and check that the battery charge indicator on the dashboard lights up. If it does not light up, the alternator may be faulty.
4. Check the electrical system: Check fuses and relays by removing and visually inspecting them. Replace any burnt ones.
5. Check the fuel system: Add fuel if the tank is empty. Replace the fuel filter if it is clogged.
6. Check other components: If the above steps do not help, check the starter, spark plugs and other components that may prevent the engine from starting.
Note: For safe and accurate diagnosis and troubleshooting, it is strongly recommended that you contact a qualified mechanic.