Cessna 400 autopilot

[Hwolf]

I did buy a P337G today, got a great deal from a friend of mine.
3500 TT, 400SMOH front and back.
Last year the Cessna A/P stopped working he told me, completely failed.
On the ground after switching the on/off switch the power light on the top right did not illuminate, assuming that what it is.
I checked the fuse panel, and did not see an autopilot breaker.
Its a 400 series, and it seems factory.
No manuals either, but did download the manuals from scudrunner.
They do not seem to match what I have in my 337.
Suggestions ?
Thanks all.
Henri.