What can be down to fix the problem

Question

It is a p1633 low voltage keep alive memory on my 2002 crown victoria

Answer 1

HI there

This code is usually the result of a blown fuse or bad wiring to the pcm. Start by checking the fuses under the hood. Here is some more info on the code for you.

P1633 FORD - Keep Alive Power Voltage Too Low

Read more: https://www.autocodes.com/p1633_ford.html