GMC Forward Control P3500 (1985-1999) 6.5l (vin y), a/c circuit

A/C COMPRESSOR CLUTCH RELAY (ENGINE BULKHEAD RELAY BRACKET) A/C COMPRESSOR HIGH PRESSURE CUTOFF SWITCH (REAR OF COMPRESSOR) A/C COMPRESSOR REFRIGERANT PRESSURE SWITCH (REAR OF COMPRESSOR) AUXILIARY ENGINE COOLANT FAN AUXILIARY ENGINE COOLANT FAN A/C PRESSURE SWITCH (IN A/C HIGH PRESSURE LINE) AUXILIARY ENGINE COOLANT FAN RELAY (ENGINE BULKHEAD RELAY BRACKET) AUXILIARY FAN CONTROL SWITCH (RIGHT SIDE OF CYLINDER HEAD) BLK WIRE BRN WIRE DIODE A/C COMPRESSOR CLUTCH DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG-BAT FUSE FUSIBLE LINK GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN ENG 1 FUSE I/P FUSE BOX ORG/ WIRE PNK WIRE RED WIRE VIN N ONLY