Go for GSR 1.8 if u want turbo or Mivec CK terbalik for NA .
Sounds like fan blower issue. To check it will have to disassemble the entire dashboard.
1) rear boot - mine also same issue, there is a button that the rear boot will push down when its close, that button will easily get stucked in the close position when old and it wont bounce back up.

2) engine bonnet trigger alarm - first after the alarm triggered, check at ur meter the blinking red dot, how many times quick bling before it pauses? If i recall correctly if it quick blink 2 times means the alarm triggered by the bonnet sensor. (check manual for the exact details, got difference between 1-4 quick blinks).

If triggered by bonnet, open bonnet and see top right corner, got a stick sticking up towards the bonnet area, check to see if the stick can bounce up properly (or the spring still springy enough). If ur car had minor bump at the side or front before the bonnet easy to lari shape and heat changes will cause the alarm to trigger.. mine triggers easily everytime during noon or when its the hottest. I will add thick double sided tape at the contact point between bonnet and the stick sensor to pad the extra gap.