Codes

[salviablue]

I took my S40 (b4184s2) into the local to get the codes read. Now here's the thing, he used a solus pro scanner and the codes never read pxxx but as follows:
53
78
9A
4D
45

They mainly seemed to be referring to sporadic signal, signal faults and general misfire, 3 way cat damage...oh and something about no communication with the immobiliser.
Any one able to shed any light?
I wrote down the codes the scanner threw out but not their corresponding meanings (he was doing it for free in his lunch break so I didn't want to take up too much of his time, however, unless I can find the corresponding meanings to these codes I may have to go back and use up some more of his time....)
Cheers