How do you reset a check engine light on a 94 Subaru Legacy?

To reset the check engine light on a 1994 Subaru Legacy, you can disconnect the negative terminal of the battery for about 15 minutes to clear the engine control unit (ECU) memory. Alternatively, you can use an OBD-I scanner to check for codes and clear them. After either method, reconnect the battery or scanner, and start the vehicle to see if the light remains off. Ensure any underlying issues are resolved before resetting the light, as it will likely return if problems persist.