Alarm Problem

[tayla]

I'm baffled by this, my 03 plate corolla "T" sport has a factory fitted alarm system and since we've had this recent hot spell of weather the alarm randomly goes off in the sunshine. It does'nt go off during cloudy or nightime periods, I've owned the car for 5 years and never had any problems before, any ideas anybody ????????

 

[kingjames]

I would check your battery connections and all grounds. Check fuses. That would be a good start.

 

[ToyotaOwner]

just replace it with any DEI brand alarm if you can't diagnose the issue