Answer to the FCTM question ref advice for AP Arming
At least as of the July 29, 2011 version of the FCTM, ...for which the advice likely remains the same and goes back at least to the initial availability of the EDFCS AP option,...
See FCTM "Approach and Missed Approach" Page 5.14 (-300 to-500 Fail Passive), 5.15 (-600 to -900 Fail Passive) , and 5.16 (-600 to -900 Fail Operational).
In all three cases the advice is:
-ILS or GLS tuned and identified
-LOC and GS Pointers shown
-Arm APP
-Second AP CMD