my Toyota Highlander XU70 (2020-Present) won't start and makes a clicking noise

Solution

1. Preparation

• Gather all tools and parts required.
• Disconnect the negative battery terminal to ensure safety.

2. Battery Inspection and Replacement

• Tools Required: Wrench set, multimeter, battery terminal cleaner.

• Inspect battery terminals:

  • Clean any corrosion with a battery terminal cleaner.
  • Ensure terminals are tightened securely.

• Test battery:

  • Use a multimeter to check voltage.
  • If voltage is below 12.6 volts, proceed to replace the battery.

• Replace battery (if necessary):

  • Remove the hold-down clamp using a socket set.
  • Disconnect the positive terminal first, followed by the negative terminal.
  • Install the new battery by connecting the positive terminal first, followed by the negative terminal.
  • Reattach the hold-down clamp and ensure it is secure.

3. Starter Inspection and Replacement

• Tools Required: Socket set, torque wrench.

• If the battery is good, proceed to check the starter:

  • Locate the starter motor, usually found on the lower part of the engine near the transmission.
  • Disconnect the electrical connectors from the starter.
  • Remove the starter mounting bolts using a socket set.
  • Carefully pull out the starter motor.

• Install the new starter:

  • Position the new starter in place and secure it with mounting bolts, tightening to manufacturer specifications (typically around 15-20 Nm).
  • Reconnect the electrical connectors.

4. Final Checks

• Reconnect the negative battery terminal securely.
• Ensure all tools are removed from the engine compartment.