Hummer H2 I facelift (2007-2009) serial data Wiring diagrams

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

B+ WINDOW DN WINDOW UP GROUND SWITCH PWR BATTERY DOWN CTRL UP CTRL GROUND BLK WIRE BLOCK (RIGHT SIDE OF I/P BEHIND END TRIM PANEL) BLU/BLK WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CLASS 2 DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DOWN DOWN DOWN INPUT FRONT PASSENGER WINDOW SWITCH DOWN LEFT REAR WINDOW SWITCH DOWN SIG DRIVER DOOR LOCK/WINDOW SWITCH DRIVER WINDOW MOTOR (IN DRIVER DOOR DRIVER WINDOW SWITCH DRIVERS WINDOW SWITCH FRONT PASS WINDOW SWITCH GLOBAL WINDOW SWITCH HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF I/P, BEHIND ACCESS PANEL) LOCKOUT INDICATOR LOCKOUT SWITCH LOGIC LT DR CIRCUIT BREAKER ORG/ WIRE PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER WINDOW MOTOR (IN FRONT PASSENGER DOOR) RED/WHT WIRE RIGHT I/P JUNCTION RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF I/P BEHIND END TRIM PANEL) RIGHT REAR WINDOW SWITCH RT DOORS CIRCUIT BREAKER 1 SERIAL DATA SWITCH POWER UP SW SIG MTR UP SIG SW SIGNAL UP UP INPUT WHT WIRE

10 20 8 2 3 19 6 16 B+ B+ IGN MDGTE SW UP MDGTE SW DN MDGTE SW UP GROUND GROUND BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DOWN DOWN SIGNAL GROUND HOT W/ RUN/ACCY RELAY ENERGIZED LEFT REAR WINDOW MOTOR (IN LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LOCKOUT SIG LOGIC LR DOWN SIG LR UP SIG LT BLU/WHT WIRE LT GRN WIRE MIDGATE WINDOW MOTOR (INSIDE MIDGATE ON LEFT SIDE) MIDGATE WINDOW SWITCH MOTOR DOWN CONTROL MOTOR UP CONTROL ORG/ WIRE PPL RED/WHT WIRE RIGHT REAR WINDOW MOTOR (IN RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DOWN SIG RR LOCKOUT SIG RR UP SIG RUN/ ACCY FUSE 40 SERIAL DATA TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UP SIGNAL SW LCKOUT SIG UP WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 B+ GND BACK CUSHION IND BACK IND BACK SWITCH BACK/ CUSHION SWITCH BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE GND ELEMENT CTRL GND ELEMENT CTRL PNK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF I/P, BEHIND ACCESS PANEL) LEFT REAR CUSHION HEATED SEAT ELEMENT (UNDER RIGHT REAR SEAT CUSHION UPHOLSTERY) LOGIC REAR SEAT AUDIO (RSA) CONTROL LOW REF LT BLU WIRE NCA WIRE ORG/ WIRE PNK WIRE REAR HEATED SEAT CONTROL MODULE (UNDER FRONT OF LEFT REAR SECOND ROW SEAT) REAR SEAT FUSE RED/WHT WIRE RIGHT REAR CUSHION HEATED SEAT ELEMENT (UNDER LEFT REAR SEAT CUSHION UPHOLSTERY) SENS SIG SERIAL DATA WHT/BLK WIRE

2 3 1 OFF AUTO 5 9 13 DRV DOOR KEY SW LO GMLAN SER DATA LF DOOR AJAR SW 8 17 12 PARK LAMPS SIG HEADLAMPS OFF SIG HEADLAMPS ON SIG AUTO BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (MOUNTED TO LOWER LEFT SIDE OF MASTER CYLINDER) BRAKE/ COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY (INSIDE DRIVER DOOR BELOW OUTSIDE DOOR HANDLE) DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH GND LVL SIG GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES IGN IGNITION SWITCH IND BRAKE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER LEFT FRONT SEAT) INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 39 KEY-IN IGNITION SWITCH L SEAT BELT SW LEFT I/P JUNCTION BLOCK LO GMLAN SER DATA LOGIC LT BLU WIRE NCA WIRE OFF PARK BRAKE SWITCH (PART OF PARKING BRAKE ASSEMBLY) PARK BRK SW SIG PARK HEAD PNK LOW REFERENCE WIRE PNK WIRE PNK/BLK WIRE PPL RADIO RED/WHT WIRE SEAT BELT IND SERIAL B+ DATA SERIAL DATA TAN/WHT WIRE TIRE PRESSURE IND WHT WIRE YEL WIRE