i have a problem with my 1997 Deville over heating and i got the codes but i just cant understand them.

PCM P0603 History
IPC B1552 History
NO ACM
SDM U1255 Current
TCS C1227 History
TCS C1255 History
PZM B0533 History
PZM B1552 History
PZM B 1982 History
PZM B1983 History
NO IRC
NO RFA
PCM?

i was able to figuer out that one was about the transmission but i know the trans was fixed if that is any help. i'm new.

Check this site out. http://myweb.accessus.net/~090/dtcobd2p.html#pow

It should answer your code questions.

DAVE
'97 Concours

That link is only for the PCM codes. This one is for all of them. http://myweb.accessus.net/~090/dtcobd2.html