Lightning CEL

[duffee]

I have a 2001 Lightning that is giving me a check engine light but the predator is telling me that there are "no codes found". It seems to do it at startup.

Any ideas !?

[mikel]

Could be a non 'P' code, like a C (chassis) code or U (communication) code that the Predator does not read.

Will it clear it?

[duffee]

It will clear but it came right back. The only thing I had changed recently was the battery location. I moved the ground that used to be on the battery terminal from the firewall to the battery box bolt & it stopped.