C12 code

[Paul Higg]

I have figured out how to clear the H45 but now I get a C12 whenever I test it and it will reset manually but it keeps coming back.

Only problem is my FSM does not show a C12, it only shows a C13. If I remember correctly, doesn't C12 mean everything's OK?

Thanks.

Paul

 

[Dustoff529]

C12 Appears to be "Diagnostic Mode"... Go have a look here, this site has a link to code data bases toward teh bottom
Charlie

OBD Diagnostics, Inc. - GM OBD1 Cables

 

[Paul Higg]

Thanks, I finally figured it out by doing a search. I remember now, C12 means everything is okay.

Thanks a lot.

Paul