Hummer H3 I (2005-2010) Manual a/c circuit

1807 1807 COMPUTER DATA LINES SYSTEM A/C ON IND MODE SWITCH A/C ON SWITCH BLK WIRE BLK/WHT WIRE BLOWER MOTOR (BELOW RIGHT SIDE OF DASH) BLOWER MOTOR RESISTOR ASSEMBLY (ATTACHED TO BOTTOM OF BLOWER) BLOWER MOTOR SWITCH BRN WIRE DEFOG SW SIG DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRD GRD DIMMER SW SIG A/C RECIR REQ SIG DEFOG IND CCTRL A/C REQ SIG GRY WIRE HIGH SPEED BLOWER MOTOR RELAY (ATTACHED TO BLOWER MOTOR CASE) HOT AT ALL TIMES HVAC BLWR FUSE 82 HVAC CNTRL HD FUSE 59 HVAC CONTROL MODULE (BENEATH RADIO) HVAC RELAY 87 IGN 3 VOLT IGN RLY CTRL A/C REQ SIG A/C RECIR REQ SIG SERIAL DATA SERIAL DATA IN MAIN BUNDLE) LOGIC LOW OFF LOW REF MODE DOOR SIG EVAP TEMP SIG R AIR TEMP SIG L AIR TEMP SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PNK PPL PPL WIRE PNK WIRE RDO FUSE 13 RECIR- CULATION SWITCH RECIRC A RECIRC B MODE DOOR B R AIR TEMP B AIR TEMP A L AIR TEMP B RED/BLK WIRE TAN WIRE TAN/BLK WIRE TEMPERATURE SWITCH RECIR- CULATION IND UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) WHT WIRE YEL WIRE

3.7L 5.3L 53 15 RLY CTRL SERIAL DATA PPL 55 35 ECT SENS SIG LOW REF 57 37 21 PRESS SENS SIG A/C CLUTCH DIODE 90 A/C CLUTCH RELAY 76 A/C COMPRESSOR CLUTCH (PART OF A/C COMPRESSOR) A/C REFRIGERANT PRESSURE SENSOR (ON HIGH PRESSURE HOSE CONNECTION TO COMPRESSOR) AC CLUTCH FUSE 48 BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (FRONT LEFT OF ENGINE) EVAPORATOR TEMPERATURE SENSOR (BEHIND RIGHT LOWER DASH) GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY 78 ENERGIZED LEFT AIR TEMPERATURE ACTUATOR LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE ACTUATOR (ON SIDE OF HEATER BOX) NCA WIRE RECIRCULATION ACTUATOR (UPPER RIGHT CORNER OF HEATER CASE) RED/BLK WIRE RIGHT AIR TEMPERATURE ACTUATOR (MOUNTED TO RIGHT SIDE OF HVAC MODULE ASSEMBLY) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) YEL WIRE