Reset check engine light 1999 RAV4?

To reset the check engine light on a 1999 Toyota RAV4, you can disconnect the negative battery terminal for about 15 minutes, which will clear the engine codes. Alternatively, you can use an OBD-II scanner to erase the codes directly from the vehicle's computer. Make sure to address any underlying issues that triggered the light before resetting it to avoid future problems. Always reconnect the battery terminal securely after the reset.