my Toyota Corolla E170 (2013-2019) won't start and just clicks, what do I do

Solution

1. Preparation

• Tools Required:
  • Socket set
  • Multimeter
  • Wrench set
  • Safety gloves
• Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.

2. Battery Inspection and Replacement

1. Disconnect Battery:
   • Use a wrench to disconnect the negative battery terminal first, followed by the positive terminal.
2. Clean Terminals:
   • Inspect and clean battery terminals and cable ends with a wire brush to remove corrosion.
3. Test Battery:
   • Use a multimeter to check the battery voltage; if below 12.6 volts, charge or replace the battery.
4. Reconnect Battery:
   • Reconnect the positive terminal first, then the negative terminal, ensuring a snug fit.

3. Starter Motor Inspection

1. Access Starter:
   • Raise the vehicle using a jack and secure it with jack stands.
   • Locate and remove any protective covers if necessary.
2. Check Connections:
   • Inspect the wiring and connections to the starter motor for any damage or corrosion.
3. Test Starter:
   • Connect the multimeter to the starter motor terminals and check for voltage when the ignition is turned to the start position.
4. Replace Starter (if necessary):
   • If the starter does not engage, remove the starter motor by unbolting it from the mounting bracket and disconnecting the wiring harness.
   • Install the new starter by reversing the removal steps, ensuring all connections are secure.