Bought a used 03 Accord EX from a Toyota dealership in February with 35,000 miles. Tried the air conditioning recently before a trip, and no cold air. Has now been in the shop (back and forth between Toyota and Honda) for 3 weeks. Doesn't seem to be the compressor; two different ones installed. Now being told it is the control unit. Seems strange for a car this age/mileage. Anyone else have this problem or a possible explanation? Thanks.