The A/C on 2003 4 runner cools like crazy but for no apparent reason the cooling stops and the A/C button starts blinking. It does it on both manual and auto and can be reset most of the time but getting worse. Any suggestions?

 

looked around and found in the repair manual for the ac system. here is the section go down the the bottom and u will find info about diagnosing it

http://www.ncttora.com/fsm/2003/4run...nstruction.pdf