Hummer H3 I (2005-2010) Wiring diagram engine performance 3.7l vin e

1807 1807 COMPUTER DATA LINES SYSTEM 817 5991 SOUND SYSTEMS A/C COMPRESSOR CLUTCH RLY CTRL ACCELERATOR PEDAL POSITION (APP) SENSOR (ON ACCELERATOR PEDAL BRACKET) ACCY VOLT AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM APP SENSOR 1 SIGNAL FUEL TANK PRESSURE SENSOR SIGNAL APP SENSOR 2 SIGNAL BLK WIRE BRN WIRE BRN/WHT WIRE CNSTR VENT FUSE 31 CRUISE CONTROL SWITCH SIGNAL CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) EVAP CANISTER VENT SOL CTRL FUEL TANK PRESSURE (FTP) SENSOR (TOP OF FUEL PUMP, SENDER ASSEMBLY) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION SWITCH IGNITION VOLTAGE IGNITION VOLTAGE BATTERY POSITIVE VOLTAGE PNK WIRE LOW REF LOW REF PPL LOW REFERENCE LT BLU WIRE MIL CONTROL FUEL PUMP RELAY CONTROL OFF ORG/ WIRE PNK WIRE PPL PPL AIR SOLENOID RELAY CONTROL PPL FUEL LEVEL SENSOR SIGNAL PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA RUN WIRE STARTER ENABLE RELAY CONTROL STARTING/CHARGING SYSTEM STOP FUSE 54 STOP LAMP CONTROL STOP LAMP SWITCH (ABOVE BRAKE PEDAL ASSEMBLY) TAN WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VEHICLE SPEED SIGNAL POWERTRAIN RELAY CONTROL WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

AIR PUMP FUSE 62 AIR SOL FUSE 44 AIR SOL RELAY 80 BLK WIRE BRN WIRE BRN/WHT WIRE CLSTR FUSE 19 DK BLU/WHT WIRE DK GRN/WHT WIRE ENGINE OIL IND ETC FUSE 46 FUSE 47 EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE (ABOVE SPARE TIRE) FUEL PUMP RELAY 66 FUEL PUMP, SENDER ASSEMBLY (MOUNTED ON TOP OF FUEL TANK) FUEL/PUMP FUSE 3 GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) LOGIC MIL IND NCA WIRE ORG/ WIRE PCM-B FUSE 25 PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL COMPUTER DATA LINES SYSTEM PWR/TRN RELAY 81 RED WIRE SECONDARY AIR INJECTION (AIR) PUMP RELAY (TOP OF ENGINE, AT REAR OF INTAKE) SERIAL DATA (-) SERIAL DATA (+) UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) UP SHIFT IND WHT WIRE YEL WIRE

AIR CONDITIONING SYSTEM AIR RELAY CONTROL ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUTCH POSITION SENSOR (M/T) COMPUTER DATA LINES SYSTEM DELIVERED TORQUE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DUTY CYCLE SIGNAL ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) EVAP CANISTER PURGE SOLENOID CONTROL GENERATOR GENERATOR FIELD GRY WIRE HIGH SPEED GMLAN IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 LOW REFERENCE LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK PNK PPL PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL RED/WHT WIRE REGULATOR CTRL REQUESTED TORQUE SERIAL DATA BUS + HIGH SPEED GMLAN SERIAL DATA BUS- SIGNAL SPARK PLUG START SW SIG PNP/CLUTCH STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE YEL WIRE

18 19 PNK WIRE A/C REFRIGERANT PRESS SENS SIG AIR CONDITIONING SYSTEM AIR INJECTION REACTION AIR PUMP RLY FUSE 17 BLK WIRE BLK/WHT WIRE BRN WIRE CPP SENSOR SIGNAL CTRL VALVE CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENSOR SIGNAL ENG CNTRL SYS FUSE 22 ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (FRONT LEFT OF ENGINE) EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE GRY WIRE HOT W/ RUN/CRNK RELAY 78 ENERGIZED IGN 1 FUSE 33 INJ FUSE 23 INSTRUMENT CLUSTER SYSTEM LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MAP SENSOR SIGNAL NCA WIRE OIL PRESS SW SIG ORG/BLK WIRE PCM-I FUSE 21 PNK PNK PPL PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE RED/BLK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VEHICLE SPEED SENSOR (VSS) (M/T) (LEFT REAR OF TRANSFER CASE) VSS HIGH SIGNAL VSS LOW SIGNAL YEL WIRE

18 19 PNK WIRE BLK WIRE BLK/WHT WIRE BRN WIRE CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID VALVE CAMSHAFT POSITION (CMP) SENSOR CMP ACTUATOR SOLENOID FUEL INJECTOR 3 CONTROL CMP SENSOR SIG LOW REFERENCE CRANKSHAFT POSITION (CKP) SENSOR (LEFT REAR OF ENGINE BLOCK, BELOW STARTER) DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) FUEL INJECTOR 2 CONTROL IC 4 CONTROL IC 2 CONTROL FUEL INJECTOR 4 CONTROL IC 5 CONTROL FUEL INJECTOR 5 CONTROL FUEL INJECTOR 1 CONTROL GROUND GRY WIRE HEATED OXYGEN IAT SENSOR SIGNAL CKP SENSOR SIGNAL TP SENSOR 1 SIGNAL IC 3 CONTROL INSTRUMENT CLUSTER SYSTEM KNOCK SENSOR (KS) (BELOW INTAKE MANIFOLD, NEAR FRONT OF ENGINE) KNOCK SENSOR SIGNAL KNOCK SENSOR SIGNAL LOW REF LOW REFERENCE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL TP SENSOR 2 SIGNAL MAF SENSOR SIGNAL PPL/BLK WIRE PPL/WHT WIRE RED WIRE RED/WHT WIRE TAC MOTOR CONTROL 1 TAC MOTOR CONTROL 2 IGNITION VOLTAGE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) YEL WIRE YEL/BLK WIRE