In the I/C fuse block look for the "HVAC" and the "RDO/HVAC" fuses.
In the underhood fuse block look for the "A/C CLUTCH" fuse. The diode is clearly marked with the diode symbol.
Since the a/c compressor is ultimately controlled by the HVAC module and the PCM it would be wise to use a scan tool to see if both of those modules are communicating the correct info for an A/C request.
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