Ensure the car is in park or neutral and the parking brake is engaged before starting any work.
Open the hood and visually inspect the battery terminals for corrosion or loose connections.
Use a multimeter to test the battery voltage; a healthy battery should read around 12.6 volts when off.
If corrosion is present, disconnect the battery and clean the terminals using a battery terminal cleaner.
Reconnect and tighten the battery terminals securely to ensure a solid electrical connection.
Attempt to start the car again to see if cleaning and tightening resolved the issue.
If the car still clicks, use jumper cables to try jump-starting it from another vehicle with a good battery.
Allow the donor car to run for a few minutes before attempting to start your car again.
Check the starter relay and associated fuses in the fuse box for any signs of damage or failure.
Lightly tap the starter motor with a wrench or hammer while someone turns the key to see if it engages.
Inspect the ground wire from the battery to the chassis for corrosion or looseness and clean if needed.
If the battery voltage is below 12 volts and won’t hold a charge, consider replacing the battery.
Apply battery terminal grease to prevent future corrosion after reinstalling the battery.
Try starting the car again with the new battery installed and terminals secured.
If the car still only clicks, remove the starter and have it tested at an auto parts store.
Check for any loose or damaged wiring between the battery, starter, and ignition system.
Ensure all connections are tight and free of corrosion before reattempting to start the car.
Avoid repeated starting attempts to prevent draining the battery or damaging the starter.
If all steps fail, consult a certified mechanic for further diagnosis and repair.