Hummer H2 I facelift (2007-2009) lt blu Wiring diagrams

12 13 PPL BRK SW SIG 17 19 GMLAN BUS- SERIAL DATA ABS IND. ABS PUMP MOTOR ANG SENS SIG BLK WIRE BLK/PPL WIRE BLK/WHT WIRE BRAKE IND BRK SENS SIG PPL BRN WIRE CAN BUS HI CAN BUS LO CLASS 2 SER DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM IGN FUSE 47 ENGINE COMPT, NEAR BATTERY) GND CAN BUS LO CAN BUS HI GND SENS PHASE C GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HI SPD GMLAN - HI SPD GMLAN + LO REF HI SPD GMLAN HI SPD GMLAN HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IGN CLASS 2 SER DATA IGN GND ANGLE SENS A INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 39 L SPEED SENS SIG L WHEEL SPD SIG LEFT FRONT WHEEL SPEED SENSOR (ON LEFT FRONT WHEEL HUB ASSEMBLY) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF INSTRUMENT PANEL TO LEFT LEFT REAR WHEEL SPEED SENSOR (ON LEFT REAR WHEEL HUB ASSEMBLY) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OF STEERING COLUMN) ORG/BLK WIRE ORG/WHT WIRE PARK BRAKE SWITCH PNK WIRE PPL PRK BRK SW R SPEED SENS SIG R WHEEL SPD SIG RADIO AUDIO W/ DVD NAVIGATION RED/BLK WIRE RED/WHT WIRE RIGHT REAR WHEEL SPEED SENSOR (ON RIGHT REAR WHEEL HUB ASSEMBLY) SENS PHASE B SERIAL DATA STOP LAMP SWITCH TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION CONTROL IND UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF VEHICLE SPD SIG VSES/ ABS 1 FUSE 52 VSES/ ABS 2 FUSE 7 VSS YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ASSEMBLY CTRL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 B(+) 2 1 GROUND B(+) 5-VOLT REFERENCE MODE DOOR CTRL TEMP DOOR CTRL 5-VOLT REFERENCE TEMP SENS SIG DOOR POSITION SIG DOOR POSITION SIG A/C ON IND A/C ON SWITCH AIR REQUEST IND AIR REQUEST SWITCH AUTO SWITCH AUX HVAC IGN FUSE 41 AUXILIARY AIR TEMPERATURE ACTUATOR (RIGHT REAR OF CARGO AREA ON THE FRONT AUXILIARY BLOWER MOTOR (UPPER REAR OF AUXILIARY HVAC MODULE) BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM CTRL DK BLU WIRE DK GRN WIRE FAN DOWN SWITCH FAN UP SWITCH FRONT DEFOGGER FRONT DEFOGGER IND GND B+ GROUND GROUND IG VOLTAGE GROUND LOW REFERENCE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED HVAC BLWR FUSE 61 HVAC CONTROL MODULE HVAC IGN FUSE 46 I/P FUSE BLOCK LEFT TEMPERATURE CONTROL LOGIC LOGIC SPEED DOWN LOW REFERENCE LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MODE DOOR CTRL TEMP DOOR CTRL RECIR DOOR CTRL TEMP DOOR CTRL MODE DOWN MODE UP SWITCH MOTOR SPEED CTRL OF AUXILIARY HVAC MODULE ASSEMBLY) OF AUXILIARY HVAC MODULE) OFF SWITCH ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL REAR DEFOGGER REAR DEFOGGER IND REAR HVAC FUSE REAR SEAT AUDIO (RSA) CONTROL RECIR- CULATION IND RECIR- CULATION SWITCH RED/BLK WIRE RED/WHT WIRE RIGHT TEMPERATURE CONTROL SENS SIG GMLAN SERIAL DATA LO PRESS SENS SIG SERIAL DATA AUXILIARY MODE ACTUATOR (LEFT FRONT SPEED UP SUNLOAD SENS SIG TEMP SENS SIG TEMP SENS SIG RIGHT SW SIG MODE DOOR CTRL SWITCH TAN WIRE TEMP DOWN TEMP MODE ON/ OFF UP TEMP SENS SIG SENS SIG WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

A/C CLUTCH A/C CMPRSR FUSE 15 A/C CMPRSR RELAY BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SIG ENGINE COMPT, NEAR BATTERY) GRY WIRE GRY/BLK WIRE HEADLIGHTS SYSTEM HI SPD FAN HOT AT ALL TIMES LEFT AIR TEMPERATURE LOGIC ACTUATOR (BOTTOM CENTER OF HVAC MODULE ASSEMBLY) LEFT RIGHT SUNLOAD SUNLOAD SENSOR SENSOR LO SPD FAN LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE ACTUATOR (ON LEFT SIDE OF HVAC ASSEMBLY) ORG/BLK WIRE PNK WIRE PPL PPL/WHT WIRE RECIRCULATION ACTUATOR (ON TOP FRONT OF HVAC ASSEMBLY) RED WIRE RED/BLK WIRE RIGHT AIR TEMPERATURE ACTUATOR (AT MIDDLE TOP OF HVAC ASSEMBLY) RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF I/P BEHIND END TRIM PANEL) RLY CTRL SENS SIG SPD CTRL TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU WIRE DK GRN WIRE FAN 1 FUSE 50 FAN 2 FUSE 53 FAN CONTROL RELAY FAN HI RELAY FAN LO RELAY GRN WIRE GRY WIRE HOT AT ALL TIMES INSIDE AIR TEMPERATURE SENSOR (IN LEFT FRONT HEADLINER ABOVE DRIVER) LEFT ENGINE COOLING FAN (LEFT FRONT OF ENGINE COMPT NEAR RADIATOR) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF INSTRUMENT LT BLU WIRE LT GRN/BLK WIRE ORG/BLK WIRE PANEL TO LEFT OF STEERING COLUMN) PWR/ TRN RELAY RIGHT ENGINE COOLING FAN (RIGHT FRONT OF ENGINE COMPT NEAR RADIATOR) RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF I/P BEHIND END TRIM PANEL) SIDE OF ENGINE COMPT, NEAR BATTERY) TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT WHT/BLK WIRE YEL WIRE

AMBIENT LIGHT SENS SIG HEADLAMPS ON SIG ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM SHIFT INTERLOCK SYSTEM ANTI-THEFT SYSTEM BCM FUSE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP CTRL CRUISE CONTROL SYSTEM CRUISE CTRL IND DIMMING CTRL DIM FUSE DK BLU/WHT WIRE DK GRN WIRE GRY WIRE HEADLAMP DIMMER SW SIG HAZARD SW SIG TAP UP/TAP DN SW SIG IGN VOLT HEADLAMP SW PARK LAMPS SIG HEADLAMPS OFF SIG COURTESY LAMP CTRL TOW/HAUL SW SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF I/P, BEHIND ACCESS PANEL) IGN III VOLT CRUISE CTRL SW SIG IGNITION SWITCH IND DIMMING CTRL INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM IS LPS FUSE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH TO LEFT OF STEERING COLUMN) LOW REF WINDSHIELD WIPER SW LO SIG LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE OFF ORG/ WIRE ORG/WHT WIRE PNK IGN VOLT HAZARD SW LEFT TURN SIG HAZARD SW RIGHT TURN SIG WIRE PNK WINDSHIELD WASHER SW SIG HEADLAMP FLASH TO PASS SIG WIRE PNK WIRE PNK/BLK WIRE PPL PPL BRAKE SW SIG PPL INTERIOR LAMP DEFEAT SW SIG PPL/WHT WIRE RED WIRE RED/WHT WIRE RUN WIRE TAN WIRE TAN/BLK WIRE TRACTION CTRL SW SIG A/T SHIFT LOCK CTRL WHT WIRE WINDSHIELD WIPER SW HI SIG STEERING WHEEL CTRL SW SIG WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM HEADLIGHTS SYSTEM WIPER/WASHER SYSTEM SOUND SYSTEMS YEL WIRE YEL/BLK WIRE

1334 1335 EXTERIOR LIGHTS SYSTEM 477 1969 109 WIPER/WASHER SYSTEM HEADLIGHTS SYSTEM ANTI-THEFT SYSTEM 5187 5186 EXTERIOR LIGHTS SYSTEM 748 747 INTERIOR LIGHTS SYSTEM ACCESSORY WAKEUP SERIAL DATA ANTI-THEFT SYSTEM BLK/WHT WIRE BRN WIRE CTSY FUSE CURRENT SENS SIG LOW REF IGN VOLT DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR LOCKS SYSTEM DR LOCK CTRL DRL RLY CTRL GND BATT POS VOLT GRY WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT AT ALL TIMES IPC FUSE 41 I/P FUSE BLOCK (ON LOWER LEFT SIDE OF I/P, BEHIND ACCESS PANEL) IGN VOLT REAR WIPER/WASHER SW CTRL HOOD CLOSED SW SIG PRK BRK SW SIG INTRUSION SENS ARMED SIG LF TURN SIG LAMP CTRL CHMSL CTRL TCC BRK SIG LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT STOP TRN FUSE MASTER SW LOCKOUT SIG MASTER SW RR UP SIG MASTER SW LR DN SIG PPL MIDGATE AJAR IND SIG ORG/ WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM PPL PPL INTRUSION SENS ALARM ON SIG PPL MASTER SW RR DN SIG MASTER SW LOCKOUT RR SIG MASTER SW LR UP SIG REAR DR LOCK SW SIG RED WIRE RED/WHT WIRE RIGHT TRAILER TURN SIG LAMP CTRL LEFT TRAILER TURN SIG LAMP CTRL RR DR AJAR SW SIG LR DR AJAR SW SIG RT STOP TRN FUSE RUN/CRANK RLY CTRL STARTING/CHARGING SYSTEM STOP LAMP CTRL STOP LAMPS FUSE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE WINDSHIELD WIPER MTR PRK SW SIG WINDSHIELD WIPER SW SIG 1 HEADLAMP HI BEAM RLY CTRL HOOD AJAR SW SIG WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM ANTI-THEFT SYSTEM INSTRUMENT CLUSTER SYSTEM YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) DATA COMMUNICATION DK GRN WIRE HI SER DATA BUS+ LO GMLAN SER DATA LO GMLAN SERIAL DATA LT BLU WIRE RED/WHT WIRE SER DATA COMM TAN WIRE TAN/BLK WIRE TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLIGHT SWITCH) TRANSMISSION CONTROL MODULE (TCM) (PART OF AUTOMATIC TRANSMISSION) W/ OFF ROAD SUSPENSION CHASSIS PACKAGE W/ ONSTAR W/O OFF ROAD SUSPENSION CHASSIS PACKAGE W/O ONSTAR

21 22 ECT SENS SIG LOW REF 59 58 17 RLY COIL CTRL LOW SPD RLY CTRL HI SPD RLY CTRL BLK WIRE COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU WIRE DK GRN WIRE ENGINE COMPT, NEAR BATTERY) FAN 1 FUSE 50 FAN 2 FUSE 53 FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY GRY WIRE HOT AT ALL TIMES LEFT ENGINE COOLING FAN (LEFT FRONT OF ENGINE COMPT NEAR RADIATOR) LT BLU WIRE PWR/ TRN RELAY RADIATOR) RIGHT ENGINE COOLING FAN (RIGHT FRONT OF ENGINE COMPT NEAR TAN WIRE UNDER- HOOD FUSE BLOCK (AT LEFT SIDE OF YEL WIRE

ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL ASSEMBLY) APP SEN 2 SIG LOW REF VSS HIGH SIG VSS LOW SIG PPL AUX HVAC IGN FUSE 41 BAT POS VOT BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL IND DIMMING CTRL CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM BATT FUSE 47 GRN/WHT WIRE GROUND GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY ENERGIZED IGN INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 41 LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH TO LEFT OF STEERING COLUMN) LEFT STEERING WHEEL CONTROL SWITCH LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MISC IGN FUSE 37 PNK WIRE PPL PPL/WHT WIRE RED/WHT WIRE SER DATA SOUND SYSTEMS STOP- LAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE THROTTLE BODY (TOP OF ENGINE, MOUNTED TO FRONT OF INTAKE MANIFOLD) TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT/BLK WIRE YEL WIRE

2 4 BATTER BATTER 2 6 4 BATTER GROUND BATTER 9 17 451 109 GROUND AJAR SW SIG 9 8 2501 2500 COMPUTER DATA BUS- DATA BUS+ DATA LINES SYSTEM 9 8 SERIAL DATA UNLOCK CTRL 9 8 SERIAL DATA UNLOCK CTRL LOGIC AUX HVAC IGN FUSE 41 BLK WIRE BLK/WHT WIRE COAX COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM PPL DDM FUSE INFO FUSE DK GRN WIRE DOOR HANDLE DRIVER DOOR LATCH (INSIDE DRIVER DOOR BELOW OUTSIDE DRIVER DOOR LOCK/WINDOW SWITCH GMLAN SERIAL DATA GROUND GRY WIRE GRY/BLK WIRE HOOD AJAR SWITCH (PART OF HOOD LATCH ASSEMBLY) HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGN KEYLESS ENTRY ANTENNA LCK 1 FUSE LCK 2 FUSE LEFT I/P JUNCTION LEFT REAR DOOR LATCH (AT LEFT REAR OF DOOR) LIFTGATE DOOR LOCK ACTUATOR (AT LOWER CENTER OF LIFTGATE) LOCK CTRL LOGIC INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE NCA WIRE PASSENGER DOOR LATCH (INSIDE PASSENGER DOOR BELOW OUTSIDE PASSENGER DOOR LOCK/WINDOW SWITCH PNK WIRE PNK/BLK WIRE PPL PPL CLOSED SW SIG REAR DOOR LOCK/UNLOCK PCB RELAY RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF I/P BEHIND END TRIM PANEL) RIGHT REAR DOOR LATCH (AT RIGHT REAR OF DOOR) RT DOORS CIRCUIT BREAKER SECURITY IND SERIAL DATA TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UNLCK 1 FUSE UNLCK 2 FUSE VOLT BATT POS WHT WIRE