Your local Crown dealer will be the only 'correct' place to acquire manuals. We can only discuss portions of the manuals, and things we know from experience.
Code 16 refers to the battery being over charge. you will need to fix this before you will be able to go any further. what is the 'at rest' battery voltage? you may have to use an ev100 handset to set the card to the actual voltage of the battery. (are you sure you have a 24volt battery in this truck?)