check engine light???

[apithano]

My 03 RK Police has about 18,500 miles on it.I just noticed lately when I start it after a couple of seconds the engine light comes on for about 5 seconds.Anybody know what this means?Thanks for any help>

 

[D (A/V) ID]

no , i dont know

 

[ChloeMae]

The ecm is storing a historic code.