Hummer H3 I (2005-2010) (under driver seat carpet, on floor board) Wiring diagrams

ABS IND. ACCESSORY SWITCH BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) BRAKE IND BRN WIRE BRN/WHT WIRE CAN L CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PPL CLASS CLASS 2 (EBCM) 2 (EBCM) DELIVERED TORQUE SIGNAL DK BLU WIRE DRIVER INFO CENTER INSTRUMENT PANEL CLUSTER (IPC) ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) GRY WIRE HOT W/ HVAC RELAY ENERGIZED IGN IGN 3 VOLT LOGIC LT BLU WIRE LT GRN WIRE ORG/BLK WIRE PARK BRAKE SWITCH PARK BRK SW SIG PPL PPL CLASS 2 SERIAL DATA PPL DATA LINK CONNECTOR (DLC) (LEFT SIDE OF DASH) PULSE SIG STEERING REQUESTED TORQUE SIGNAL SIG A STEERING STABILITY CAUTION IND STEERING SIG B STOP LP VOLT TAN/BLK WIRE TRAC CTRL SW SIG TRACTION CONTROL SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VSES/ABS FUSE 52 WHT WIRE YAW, LATERAL ACCELEROMETER SENSOR (W/ ACTIVE BRAKE CONTROL) (UNDER DRIVER

15 16 PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA 53 33 HI SPD SERIAL DATA BUS + HI SPD SERIAL DATA BUS - A/T AUX PWR 1 FUSE 51 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) CIGAR LIGHTER DATA LINK CONNECTOR (DLC) (LEFT SIDE OF DASH) DATA LINK RESISTOR DIGITAL RADIO RECEIVER (RIGHT SIDE OF DASH) ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT OF MASTER CYLINDER) ENGINE CONTROL MODULE (ECM) (RIGHT REAR CORNER OF ENGINE COMPT) GENERATOR BATTERY CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR BATTERY) HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (BENEATH LOWER CONSOLE) INSTRUMENT PANEL CLUSTER (IPC) M/T ORG/ WIRE PPL PPL CLASS 2 SERIAL DATA PPL PPL 11 10 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PPL PPL 1807 1807 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA RADIO TAN WIRE TAN/WHT WIRE THEFT DETERRENT MODULE (TDM) TRANSFER CASE SHIFT CONTROL MODULE (BEHIND GLOVE BOX) TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL)

"D" PILLAR) BATTERY BATTERY PK LP CTRL BCM FUSE 14 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) BRN WIRE BRN/WHT WIRE DK BLU/WHT WIRE DOME LAMP DOME ON SWITCH DOME OVERRIDE SWITCH DOME/ READING LAMPS DRIVER DOOR AJAR SWITCH (IN LOWER LEFT "B" PILLAR) DRIVER DOOR LOCK/ WINDOW SWITCH ENDGATE AJAR SWITCH (IN RIGHT FR/PRK FUSE 43 FRT TURN/ HAZARD/ CTSY MIR FUSE 56 GRY/BLK WIRE HEADLAMP SWITCH HOT AT ALL TIMES LAMP CTRL POWER CTRL LEFT I/P COURTESY LAMP LEFT REAR DOOR AJAR SWITCH (IN LOWER LEFT "C" PILLAR) LEFT SUNSHADE LEFT VANITY MIRROR LAMP LF DOOR AJAR RR DOOR AJAR LR DOOR AJAR RF DOOR AJAR LOW CTRL LOW CTRL LOW CTRL LT BLU/BLK WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER DOOR AJAR SWITCH (IN LOWER RIGHT "B" PILLAR) PASSENGER DOOR LOCK/ WINDOW SWITCH POWER CTRL PPL PPL LAMP SW SIG OVERRIDE SW LOW REF PRK/LP RELAY 89 RIGHT I/P COURTESY LAMP RIGHT REAR DOOR AJAR SWITCH (IN LOWER RIGHT "C" PILLAR) RIGHT SUNSHADE (W/ CONVENIENCE PACKAGE DECOR LEVEL 3) RIGHT VANITY MIRROR UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) W/ CONVENIENCE PACKAGE DECOR LEVEL 3 W/O CONVENIENCE PACKAGE DECOR LEVEL 3 WHT WIRE

1 10 11 4 PPL PPL 5 VOLT REFERENCE 2 6 7 38 37 GMLAN HI (+) GMLAN HI (-) GMLAN HI (+) GMLAN HI (-) 66 67 VSS HIGH SIGNAL VSS LOW SIGNAL 7 29 2 STOP LAMP CONTROL CRUISE CONTROL SWITCH CRUISE CONTROL RELEASE SIGNAL A/T ACCELERATOR PEDAL POSITION (APP) SENSOR (ON ACCELERATOR PEDAL BRACKET) B+ CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA GND BLK WIRE BLK/WHT WIRE BRN WIRE CLSTR FUSE 19 COMPUTER DATA LINES SYSTEM CRUISE CONTROL ON/OFF SWITCH CRUISE CONTROL RELEASE SWITCH CRUISE INDICATOR CRUISE/MISC FUSE 35 DK BLU WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (RIGHT REAR OF ENGINE COMPARTMENT) GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY ENERGIZED LOGIC LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REFERENCE LT BLU WIRE LT GRN/BLK WIRE M/T MOUNTED ON UPPER AIR INTAKE MANIFOLD) ON OFF ORG/ WIRE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL CLASS 2 SERIAL DATA PPL TP SENSOR 2 SIGNAL PPL/WHT WIRE RES+ SET- STOP FUSE 54 STOP LAMP SWITCH (ABOVE BRAKE PEDAL ASSEMBLY) TAC MOTOR CONTROL-1 TAC MOTOR CONTROL-2 TAN WIRE TAN/WHT WIRE THROTTLE BODY (TOP OF ENGINE) TP SENSOR 1 SIGNAL TRANSMISSION CONTROL MODULE (TCM) TURN SIGNAL/MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VEHICLE SPEED SENSOR (VSS) (LEFT REAR OF TRANSFER CASE) VSS HIGH SIGNAL VSS LOW SIGNAL WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) DEFOGGER INDICATOR HOT AT ALL TIMES HVAC CONTROL MODULE (BENEATH RADIO) IND CTRL LOGIC LT BLU WIRE R/WDO DEFG FUSE 30 REAR DEFOG INDICATOR CTRL REAR DEFOG SWITCH SIG REAR DEFOGGER SWITCH GROUND REAR WINDOW DEFOGGER RELAY CNTRL RR DEFOG RELAY 71 SW SIG TAN WIRE UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) WHT WIRE

1807 2040 PPL BCM FUSE 14 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) BRN/WHT WIRE CLASS 2 SERIAL DATA CLSTR FUSE 19 DRIVER DOOR JAMB SWITCH (IN LOWER LEFT "B" PILLAR) ENGINE CONTROL MODULE (RIGHT REAR CORNER OF ENGINE COMPT) EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM FRT TRN/HAZRD/ CTSY MIR FUSE 56 GRY WIRE GRY/BLK WIRE HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER LEFT REAR DOOR JAMB SWITCH (IN LOWER LEFT "C" PILLAR) LIFTGATE AJAR SWITCH (IN RIGHT "D" PILLAR) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER DOOR JAMB SWITCH (IN LOWER RIGHT "B" PILLAR) PNK/WHT WIRE PPL REAR TRN/ HAZRD FUSE 20 RIGHT REAR DOOR JAMB SWITCH (IN LOWER RIGHT "C" PILLAR) SECURITY IND CTRL HORN RLY CTRL SECURITY INDICATOR UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) WHT WIRE

ACCESSORY SWITCH AUDIO AMPLIFIER BLK WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) CONVENIENCE PACKAGE DECOR LEVEL 3 DATA LINK CONNECTOR (DLC) DIGITAL RADIO RADIO RECEIVER DK BLU WIRE DOME/ READING LAMPS DRIVER SEAT BELT SWITCH EXCEPT CONVENIENCE PACKAGE DECOR LEVEL 3 GARAGE DOOR OPENER (GDO) GRN WIRE HAZARD SWITCH HEADLAMP DIMMER SWITCH HIGH SPEED BLOWER MOTOR RELAY HVAC CONTROL MODULE I/P ACCESSORY POWER OUTLET 1 I/P ACCESSORY POWER OUTLET 2 IGNITION LOCK CYLINDER CONTROL ACTUATOR INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) MODULE INFLATABLE RESTRAINT SENSING, PASSENGER DIAGNOSTIC SEAT MODULE BELT (SDM) SWITCH INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR DRIVER DOOR DOOR JAMB JAMB SWITCH SWITCH LEFT SUNSHADE LIFTGATE AJAR SWITCH PASSENGER DOOR JAMB SWITCH PNK WIRE RADIO REAR WINDOW WIPER/WASHER SWITCH RIGHT REAR DOOR JAMB SWITCH RIGHT SUNSHADE STEERING WHEEL POSITION SENSOR THEFT DETERRENT MODULE (TDM) TRANSFER CASE SHIFT CONTROL MODULE TURN SIGNAL/ MULTIFUNCTION SWITCH VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) W/ ACTIVE BRAKE CONTROL WHT WIRE WINDSHIELD WASHER FLUID PUMP YAW, LATERAL INSIDE ACCELEROMETER REARVIEW MIRROR SENSOR

1 2 3 4 5 PPL SER DATA GROUND IGN VOL BATTER BATT IGN SWITCH FUSE 5 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) BRN WIRE CLSTR FUSE 19 COMPUTER DATA LINES SYSTEM GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) IGN VOLT IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LOCK ORG/ WIRE PPL SERIAL DATA RUN WIRE SECURITY IND THEFT DETERRENT MODULE (TDM) WHT WIRE YEL WIRE

12 15 MIL SERIAL DATA PPL 2 59 60 PPL SERIAL DATA SEAT BELT SW SEAT BELT SW 24 40 LOW REF 5 VOLT REF 1 3.7L 44 27 PPL PNK SERIAL DATA BRK FLUID LVL WIRE 5.3L 8 9 10 11 12 13 14 15 16 17 18 CHARGING IND ABS IND. ACCESSORY SWITCH AIR BAG IND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT FRONT KICK PANEL) BRAKE FLUID LEVEL SWITCH (ON LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE IND BRN/WHT WIRE CHIME CLSTR FUSE 19 COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 1807 238 CRUISE IND DK BLU WIRE DRIVER INFORMATION CENTER (DIC) DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH ECT SENSE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT OF MASTER CYLINDER) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPER- ATURE GAUGE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (FRONT LEFT OF ENGINE) ENGINE OIL PRESSURE (EOP) SWITCH (3.7L) (ABOVE OIL FILTER) FUEL GAUGE FUEL PUMP, SENDER ASSEMBLY (MOUNTED ON TOP OF FUEL TANK) GRY WIRE HIGH BEAM IND 1 2 3 4 5 6 7 HOT AT ALL TIMES IGN ILLUMINATION (4 BULBS) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (BENEATH LOWER CONSOLE) INSTRUMENT PANEL CLUSTER (IPC) LEFT TURN IND LOGIC LOW REF LOW TIRE PRESSURE IND LT BLU WIRE MALFUNCTION IND NCA WIRE OIL GAUGE OIL PRESS OIL PRESSURE IND ORG/ WIRE PARK BRAKE SWITCH (LEFT LOWER SIDE OF DASH) PASSENGER SEAT BELT BUCKLE PASSENGER SEAT BELT SWITCH PASSENGER SEAT BELT IND PNK WIRE PPL PPL FUEL LEVEL PPL PPL PPL PPL SERIAL DATA SERIAL DATA PRK BRK SW SERIAL DATA PPL RED WIRE RIGHT TURN IND SEAT BELT IND SECURITY IND SENSOR SIG SERIAL DATA SERIAL DATA GROUND BATTERY SPEEDO- METER TACHO- METER TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION CONTROL IND TRIP ODOMETER TRIP RESET SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) UP SHIFT IND VOLTS WHT WIRE YEL WIRE

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