Service engine soon...

[MatteMan]

My frends "service engine soon" is lighting after we have tested HEC Instrument Cluster Diagnostics ( http://www.mustangworld.com/ourpics/fcar/dtcodes.htm ) on hes 2001 GT, someone knows why??
But it also says on the site: "you don't need to worry about messing up your stang or changing the programming" So it´s strange

On my stang there is no service engine ligting when I try the test.

Thanks

 

[Kilgore Trout]

Try resetting the PCM. If the light keeps coming on, have AutoZone pull the codes and then use the sticky to find out what they mean.

 

[MatteMan]

Try resetting the PCM. If the light keeps coming on, have AutoZone pull the codes and then use the sticky to find out what they mean.

Okej... just pull off the battery for 15 min right?
I live in Sweden so we don´t have AutoZone here, but I think I know a store here that can read mustang codes.