I have a 08 sc430 and my Lexus technician at the Lexus stealership says that the problem is a computer chip that they cannot
find or order! Can anyone tell me what this chip could be and where I can order the part?
The last time I had a/c problems it was a relay….
Any help would be greatly appreciated

Thanks

 

Ask your dealership what component houses this "computer chip". Maybe I'm way off the mark here, but I'm assuming it is the AC Control Assembly. Once the component is identified you can start your search. I think these are available on eBay.

 

Where is the AC Control Assembly. located?

 

See below. Let me be very clear, I don't know if this is where the problem lies, but it is a possibility.

 

Hmm my my ac thermostat is the issue....