how to repair my Toyota RAV4 XA40 (2013-2018) if it won't start

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, jumper cables, remote starter switch.
• Disconnect the negative battery terminal to ensure safety during repairs.

2. Battery Inspection and Replacement

• Sub-steps:
  1. Inspect the battery for corrosion on terminals. Clean with a wire brush if necessary.
  2. Measure the battery voltage using a multimeter. If voltage is below 12.6 volts, charge or replace the battery.
  3. Reconnect the battery terminals securely.

3. Fuel System Check

• Sub-steps:
  1. Locate the fuel pump relay in the fuse box and test for continuity with a multimeter.
  2. If the relay is faulty, replace it with a new one.
  3. If the relay is functional, check the fuel pump by using a pressure gauge on the fuel rail; ensure it's delivering the correct pressure.
  4. If the pump is faulty, replace the fuel pump assembly as needed.

4. Ignition System Inspection

• Sub-steps:
  1. Remove the ignition coil(s) and inspect for visible damage or buildup.
  2. Test the ignition coil(s) for resistance using a multimeter; replace any faulty coils.
  3. Check spark plugs for wear and replace if necessary. Ensure they are gapped correctly.
  4. Reinstall all components securely.

5. Starter System Repair

• Sub-steps:
  1. If the starter does not engage, remove the starter from the vehicle.
  2. Test the starter motor with a direct power supply to check functionality.
  3. If the starter is faulty, replace it with a new or refurbished unit.
  4. Reinstall the starter, ensuring all connections are secure and correctly torqued.