Alarm and remote door locks no longer work on hot days

Thinkreferrals

Registered User
Before I parked my baby for the last 1.5 years, my 90 SC remote stops functioning when sun has been shinning on the parked car. It is black on black and it does heat up significantly and unlocking it with the key does not shut off alarm.

Any thoughts on what could cause this? I know nothing about alarms and wonder if some kind of heat shielding is needed, if I could figure out where the "Brain" is located I would give it a shot.
 
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