Try the following :-
Prog 9 9 9 9 8 1 * * * * reset reset
where * * * * is the 4 digit code you want to use, this overwrites the old code with a new code, but only works if the engineer code is still at default of 9 9 9 9
Pete
May 2007
I can answer this question...
how to find out the code for the optima xm alarm system?