how to reset the check engine light on my Toyota RAV4 XA50 (2019-2024)?

Solution

1. Preparation

• Tools Required: OBD-II scanner, wrench or socket set for battery terminal.
• Ensure the vehicle is parked on a flat surface, set to park (for automatic transmissions), and the engine is turned off.

2. Use OBD-II Scanner

1. Plug in the OBD-II Scanner: Connect the OBD-II scanner to the vehicle's diagnostic port, typically located under the dashboard near the driver’s side.
2. Turn Ignition On: Without starting the engine, turn the ignition to the "On" position.
3. Follow Scanner Instructions: Navigate through the scanner's menu to read DTCs and note any issues. If you are ready to reset, select the option to clear codes.

3. Disconnect Battery

1. Power Off the Vehicle: Ensure the vehicle is off and remove the key from the ignition.
2. Locate the Battery: Open the hood and locate the battery.
3. Disconnect Negative Terminal: Use the appropriate wrench or socket to loosen and remove the negative battery terminal (usually marked with a minus sign).
4. Wait: Leave the battery disconnected for at least 15 minutes to allow the vehicle’s systems to reset.
5. Reconnect Negative Terminal: Reattach the negative battery terminal and tighten it securely.