Cadillac Repair: 1994 caddilac eldorado, caddilac, word history

Question
My car keeps on pulling a pcm61, pcm47, and also a pcm38. I also would like to know If there is place to buy a code book.  Thanks

Answer
I have no idea where you can get a bbok for all the codes meanings.

When I was working on Cadillacs for close to 30 years, I personally purchased the books thru the dealer that I worked for so I would have a set of my own.

You need to check the codes again because after EACH code displays it is followed by the word HISTORY or CURRENT.

I need to know which codes are HISTORY and which are CURRENT.