In various places I've seen a problem described with Camry central locking being erratic, and the culprit seems to be the "integration board" that senses that each door is locked. In my 03 Altise the problem gets worse as winter (mid New Zealand) arrives, and goes away in the summer (repeated 3 years now). If I can locate the PCB involved I might just install some sort of heat beside it. But where is this board?