Installed dsc 1616 system and 3 keypad pk5500 and one keypad is fine and works and can even set alarm but the other two keypads say key bus fault call for service first keypad set as 1-1 not sure what I did

Installed dsc 1616 system and has 3 keypads 1 is working fine in 1-1 pk 5500 keypads and two of the keypads say key bus fail call for service not sure what the problem could be something in my programming of first keypad

Verify your wiring is ok(continuity and no shorts. Did you assign KP Location Programming(000).
When you view supervision(903), do you see your 1 kp and any modules?