The Best 2003 Toyota Camry Le Check Engine Light References. If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage. One way is to disconnect the battery for about 30 seconds.

One way is to disconnect the battery for about 30 seconds. It is possible for the check engine light to come on in camry due to a loose or bad gas cap. If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage.