Automatic a/c circuit for GMC Sierra 1500 (2000-2012)

80 51 45 28 14 68 43 34 58 58 (GASOLINE) (DIESEL) A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN A/C MUFFLER HOSE ASSEMBLY) AMBIENT AIR TEMPERATURE SENSOR (IN RIGHT FRONT BUMPER FILLER ASSEMBLY AUTO BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER MOTOR BLOWER MOTOR CONTROL PROCESSOR (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FAN DN FAN UP FRT DEF GROUND TEMP SEN ASS CTRL BLOWER SPEED CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES A/C COMP FUSE HOT IN HOT IN RUN OR START IGN E FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P RELAY BLOCK (LEFT SIDE OF DASH) INSIDE AIR TEMPERATURE SENSOR ASSEMBLY (IN HEADLINER ABOVE DRIVER) INST LAMP DIM CTRL GROUND LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT TEMP CONTROL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL LOGIC LOW REF LOWER LEFT AIR TEMPERATURE SENSOR (IN LOWER LEFT FLOOR DUCT ASSEMBLY) LOWER RIGHT AIR TEMPERATURE SENSOR (BOTTOM CENTER OF HVAC BOX, IN FLOOR DUCT) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) OFF ORG/ WIRE POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RECIR RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RED WIRE RED/BLK WIRE RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT TEMP CONTROL RUN WIRE SPEED CTRL B(+) GROUND TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UPPER LEFT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL, IN UPPER DUCT) UPPER RIGHT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL, IN UPPER DUCT) WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 AIR TMP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 B(+) A/C IND A/C LOW PRESSURE SWITCH (ON RIGHT SIDE OF A/C ACCUMULATOR) A/C ON AIR TEMP RF SUNLD AMB AIR TMP GMLAN L LW PRSS AMBIENT AIR TEMPERATURE SENSOR (ON LEFT SIDE OF RADIATOR SUPPORT) AMBIENT LIGHT/ SUNLOAD SENSOR ASSEMBLY (TOP CENTER OF DASH) AUTO BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/WHT WIRE COLNT LVL GROUND LOW REF COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ENGINE COOLANT LEVEL SWITCH (6.6L) (ON BOTTOM OF SURGE TANK) FAN DN FAN UP FRESH AIR FRNT DFG FRT DEF FSH AIR GROUND GROUND IGN 3 REAR DEFOG GRY WIRE GRY/BLK WIRE HVAC CONTROL MODULE LEFT SUNLOAD SENSOR LEFT TEMP CONTROL LF SUNLD L AIR TMP R AIR TMP LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE CTRL L AIR TMP RECIR CTRL R AIR TMP MODE DN MODE UP MTR SPD CTRL OFF ORG/ WIRE POWER DISTRIBUTION SYSTEM DEFOGGER SYSTEM PPL PPL/WHT WIRE R AIR TMP AIR TMP R AIR TMP REAR DFG RECIR RECIRC RED WIRE RED/WHT WIRE RER DEF RIGHT SUNLOAD SENSOR RIGHT TEMP CONTROL TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

11 12 PPL AMBIENT LIGHT SENS LO REF AMBIENT LIGHT SENS SIG RIGHT SUNLOAD SENSOR SIG LEFFT SUNLOAD SENSOR SIG AMBIENT LIGHT SENSOR BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE GRY WIRE LEFT AIR TEMPERATURE ACTUATOR (TOP CENTER OF HVAC CONTROL ASSEMBLY) LEFT SOLAR SENSOR LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) PPL RECIRCULATION ACTUATOR (TOP CENTER OF HVAC MODULE) RIGHT AIR TEMPERATURE ACTUATOR (TOP CENTER OF HVAC CONTROL ASSEMBLY) RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT SOLAR SENSOR SUNLOAD SENSOR (TOP CENTER OF DASH) TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

6.6L EXCEPT 6.6L, 4.3L 4.3L A/C CMPRSR FUSE 17 (EXCEPT 6.6L) FUSE 18 (6.6L) A/C COMP- RESSOR CLUTCH RELAY BLK WIRE BLK/BLU WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EXCEPT 6.6L, 6.0L (VIN K) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HVAC BATT FUSE 39 HVAC BLWR FUSE 70 HVAC IGN FUSE 57 (EXCEPT 6.6L) FUSE 55 (6.6L) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE ORG/BLK WIRE PNK WIRE PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RUN/ CRANK RELAY TAN WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/BLU WIRE BRN WIRE COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE EXCEPT 6.6L, 6.0L (VIN K) FAN CNTRL RELAY FAN HI RELAY 1 FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES LEFT AIR TEMPERATURE ACTUATOR (BOTTOM LEFT OF HVAC MODULE) LEFT ENGINE COOLING FAN (LEFT FRONT OF ENGINE COMPT) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE ACTUATOR (LEFT END OF HVAC MODULE) ORG/BLK WIRE PPL PWR/ TRN RELAY RECIRCULATION ACTUATOR (TOP RIGHT SIDE OF HVAC MODULE) RIGHT AIR TEMPERATURE ACTUATOR (TOP MIDDLE OF HVAC MODULE) RIGHT ENGINE COOLING FAN (RIGHT FRONT OF ENGINE COMPT) TAN WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE