my Honda Civic won't start and just clicks what could be the issue

Solution

1. Preparation

• Tools Required: Multimeter, jumper cables, socket set, wire brush, safety gloves.
• Ensure the vehicle is in park or neutral and the parking brake is engaged.

2. Battery Inspection and Replacement

1. Check Battery Condition:
   • Use a multimeter to measure the battery voltage; it should read above 12.4 volts.
   • If the voltage is low, proceed to jump-start the vehicle.
2. Clean Battery Terminals:
   • Disconnect the negative terminal first, followed by the positive terminal.
   • Use a wire brush to clean any corrosion from the terminals and cable ends.
3. Replace Battery if Necessary:
   • If the battery is old (usually over 3-5 years) or fails to hold charge, replace it with a new one.
   • Install the new battery by connecting the positive terminal first, followed by the negative terminal.

3. Starter System Inspection

1. Check Starter Relay:
   • Locate the starter relay in the fuse box and swap it with a similar relay.
   • Attempt to start the vehicle again.
2. Inspect Starter Motor:
   • If the clicking persists, locate the starter motor.
   • Check for loose wires or connections and tighten as needed.
   • If damaged, remove the starter motor using a socket set, replace it with a new unit, and secure it properly.