my Toyota Corolla E140 (2006-2013) won’t start and just clicks what’s wrong

Solution

1. Preparation

• Tools Required: Socket set, multimeter, battery terminal cleaner, load tester.
• Safety Warnings: Disconnect the negative battery terminal before working on the electrical system.

2. Battery Replacement (if necessary)

1. Remove Battery Cables: Disconnect the negative cable first, followed by the positive cable.
2. Remove Battery: Unscrew any hold-down clamps and carefully lift the battery out of the tray.
3. Install New Battery: Place the new battery into the tray and secure it with the hold-down clamps.
4. Reconnect Battery Cables: Connect the positive cable first, then the negative cable.

3. Starter Relay Replacement (if necessary)

1. Locate the Relay: Find the starter relay in the engine compartment fuse box.
2. Remove the Relay: Pull the relay straight out of its socket.
3. Install New Relay: Insert the new relay into the same socket, ensuring it is seated properly.

4. Starter Motor Replacement (if necessary)

1. Remove Starter Motor: Disconnect the battery as previously outlined. Remove the wiring harness and bolts securing the starter motor.
2. Install New Starter Motor: Position the new starter motor and secure it with bolts. Reconnect the wiring harness.
3. Reconnect Battery: Reconnect the battery terminals, positive first, followed by negative.