Looking for advice on fixing my Mac Plus

>Everything checks out on power up but wont boot from floppy disk cause it goes right to this error.

So, does this mean that no Sad Mac appears when powering on without a floppy disk in the floppy drive? If so, is there a floppy disk icon with a question-mark instead? Before that, was there a normal startup tone?

Have you tested another appropriate startup floppy?

>Not sure if the Lithium battery is dead or not, Im assuming it may be. Would that have a part in this?

The Macintosh Plus uses a 4.5V alkaline battery. Generally speaking, a bad (logic board) battery could cause unexpected startup difficulties with some Macintosh computers. However, a Plus would normally boot OK even with a weak battery. An old/bad battery could leak, so remove it from the battery compartment.

Hi,

Unfortunately, I cannot find a description of that exact Sad Mac error code. A hardware-related problem would be the assumption. Just guessing here, but since the issue may have appeared during storage, cable or memory module contact corrosion/oxide could possibly be one cause. Bad electrolytic capacitors another.

A word of warning: Please note that all work inside a compact Mac is dangerous, and must be performed by an expert only, because of the high-voltage circuits involved. Dangerous charges can remain in various components (CRT, capacitors, etc) for a long time after the computer has been switched off and disconnected from the mains.

It's a ROM test failure:
http://www.gla.ac.uk/~gwm1h/Error_Codes/Sad_Mac_Codes.html

After the initial 01, the next 4 digits are meaningless - hence you can't find a reference to those exact digits. The solution is to re-seat the ROM chips/modules (if they're socketed - it's been a while since I cracked open a Mac Plus) and see if the problem returns.

You have re-seated de RAM modules, not de ROM. These are just 2, and they are in the middle of the board.