Compressor circuit for Hummer H3 I (2005-2010)
Compressor circuit
1807 1807 PPL PPL SERIAL DATA SERIAL DATA A/C REQ SIG
53 15 RLY CTRL SERIAL DATA PPL
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 ON IND LOW REF
A/C ON SWITCH EVAP TEMP SIG
A/C REFRIGERANT PRESSURE SENSOR (ON HIGH PRESSURE HOSE CONNECTION TO COMPRESSOR)
A/C REQ SIG
AC CLUTCH FUSE 48
BLK WIRE
BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL)
COMPUTER DATA LINES SYSTEM
DK GRN WIRE
DK GRN/WHT WIRE
ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT)
EVAPORATOR TEMPERATURE SENSOR (BEHIND RIGHT LOWER DASH)
GRY WIRE
HOT AT ALL TIMES
HOT W/ RUN/ CRANK RELAY 78 ENERGIZED
HVAC CONTROL MODULE (BENEATH RADIO)
LOGIC
LOW REF
MANUAL A/C CIRCUIT
PPL
RED/BLK WIRE
UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL)
YEL WIRE