my Toyota Highlander XU70 (2020-Present) radio stops working randomly, what could be wrong

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked and the ignition is off.
• Disconnect the negative battery terminal to prevent any electrical shorts.

2. Inspect and Replace Fuse

• Locate the fuse box (usually under the dashboard or in the engine compartment).
• Identify the fuse for the audio system using the fuse diagram.
• Remove the fuse and inspect it for continuity. Replace if blown.
• Reinstall the fuse and reconnect the battery terminal.

3. Check Wiring Connections

• Remove the radio unit from the dashboard using a trim removal tool.
• Inspect the wiring harness connections at the back of the radio for any damage or corrosion.
• Secure any loose connections and replace damaged wires as needed.
• Reinstall the radio unit carefully.

4. Update Software

• Check the manufacturer’s website for the latest software updates for the audio system.
• Follow the manufacturer’s instructions to download and install the update via USB or through the vehicle interface.

5. Test Power Supply

• Use a multimeter to check the voltage at the radio’s power input while the system is on.
• Ensure that the voltage remains stable; if it fluctuates, investigate the battery or charging system.