Idms 3 alarm

[Savory05]

Hello all hope this is in the right section I have a imds alarm on my swift Caravan and I come to set alarm and it flashes fnc on main board where the LEDs am and I can't set alarm ?does any one know what fnc means thx

 

[Stevel]

Sorry for the delay been away,
try
http://www.expluginsteve.co.uk/
top guru for Idms Alarm systems, have used him many times.