Okay just talked with mechanic again and he said the cem module is probably bad.. He's a local import serviceman. So is there any steps I can take before spending big bucks to have that replaced..?

Bought this 05 xc90 about a year ago. Has occasionally given the message "alarm system service required" and the sunroof had never worked.. Haven't had any issue with it. but now it won't start. Turn the key, all panel indicator lights come on but it does nothing. Battery good, changed sta...