Hummer H2 I (2002-2007) ground Wiring diagrams

A/C COMP CL RLY CTRL A/C COMP FUSE A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN REAR OF A/C COMPRESSOR) AMBIENT AIR TEMPERATURE SENSOR (RIGHT OF RADIATOR SUPPORT) BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER MOTOR (ON HVAC ASSEMBLY) BLOWER MOTOR CONTROL PROCESSOR (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT DEF GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF DASH) IGN E FUSE INSIDE AIR TEMPERATURE SENSOR ASSEMBLY INST LAMP DIM CTRL GROUND LEFT TEMP CONTROL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL LOGIC LOW REF LOW REF TEMP SEN ASSY CTRL BLOWER SPEED CTRL LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MIRRORS SYSTEM MODE MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) ORG/ WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE REAR DEF RECIR RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RED WIRE RED/BLK WIRE RIGHT TEMP CONTROL RUN WIRE SPEED CTRL B(+) GROUND TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UPPER LEFT AIR TEMPERATURE SENSOR (AT LEFT SIDE OF DASH PANEL) UPPER RIGHT AIR TEMPERATURE SENSOR (AT RIGHT SIDE OF DASH PANEL) WHT WIRE WHT/BLK WIRE YEL WIRE

7 8 MIRROR HTR GROUND BLK WIRE BODY CONTROL MODULE (AT TOP LEFT SIDE OF DASH) BRN WIRE CLASS 2 SER DATA CLASS 2 SER DATA RELAY CNTRL COMPUTER DATA LINES SYSTEM DRIVER DOOR MODULE DRIVER OUTSIDE REAR- VIEW MIRROR FRONT PASSENGER DOOR MODULE FRONT PASSENGER OUTSIDE REAR VIEW MIRROR GROUND HOT AT ALL TIMES HOT IN RUN AND START HVAC CONTROL MODULE (BEHIND CENTER OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN LOGIC LT GRN WIRE MIRROR HTR ORG/ WIRE PNK WIRE PPL REAR DEFOGGER RELAY REAR DEFOGGER SWITCH REAR WINDOW DEFOGGER RR DEFOG FUSE SEO IGN FUSE SERIAL DATA TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT) WHT WIRE

1 2 3 4 5 6 7 PNK WIRE ANTI-THEFT SYSTEM (IGNITION KEY ALARM SWITCH) BLK WIRE BRN WIRE CENTER FRONT ROOF LAMPS CENTER HIGH MOUNTED STOP LAMP CENTER REAR ROOF LAMPS DK BLU WIRE DK GRN WIRE EXTERIOR LAMPS (BACKUP LAMPS CIRCUIT) FLASH FUSE GROUND HAZARD SWITCH HAZARD SWITCH SIGNAL HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF I/P, NEAR LEFT KICK PANEL) LEFT LEFT FRONT CLEARANCE LAMP LEFT REAR CLEARANCE LAMP LEFT TURN SIGNAL SWITCH SIGNAL LT BLU WIRE LT GRN WIRE LT TRLR FUSE LT TURN FUSE NCA WIRE PNK WIRE RED WIRE RIGHT RIGHT FRONT CLEARANCE LAMP RIGHT REAR CLEARANCE LAMP RIGHT TURN SIGNAL LAMP SUPPLY VOLTAGE RIGHT TURN SIGNAL SWITCH SIGNAL RT TRLR FUSE RT TURN FUSE SPLICE PACK STOP FUSE STOP LAMP SWITCH SIGNAL STUD 1 STUD 1 FUSE STUD 2 STUD 2 FUSE TAN WIRE TRAILER CONNECTOR TRAILER JUMPER HARNESS (BLUNT CUT) TRAILER LR TURN/STOP LAMP SUPPLY VOLTAGE TRAILER RR TURN/STOP LAMP SUPPLY VOLTAGE TURN SIGNAL SWITCH TURN SIGNAL/ MULTIFUNCTION SWITCH TURN SIGNAL/HAZARD FLASHER MODULE LEFT TURN SIGNAL SUPPLY VOLTAGE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT NEAR BATTERY) VEH CHMSL FUSE WHT WIRE YEL WIRE

12 7 MIDGATE AJAR SIG AJAR INPUT 3 15 18 22 DOOR SW LO REF KEY SW SIG DOOR AJAR SW SIG SERIAL DATA 5 20 22 24 DOOR AJAR SW SIG DOOR SW LO REF SERIAL DATA KEY SW SIG AJAR AJAR SWITCH BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN WIRE DK BLU WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (INSIDE DRIVER DOOR) EXCEPT SUT GATE AJAR SW GROUND GRY WIRE GRY/BLK WIRE HEADLIGHTS CTRL BATTERY EX LIGHTS CTRL GROUND HORN RLY CTRL SERIAL DATA HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) INSTRUMENT PANEL CLUSTER KEY SWITCH LEFT LIFTGATE AJAR SWITCH LEFT MIDGATE LATCH LEFT REAR DOOR LATCH ASSEMBLY LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MIDGATE CONTROL MODULE (MCM) (CENTER OF MIDGATE ASSEMBLY) ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR MODULE (INSIDE FRONT PASSENGER DOOR) PNK/BLK WIRE PNK/WHT WIRE RIGHT LIFTGATE AJAR SWITCH RIGHT MIDGATE LATCH RIGHT REAR DOOR LATCH ASSEMBLY RR DOOR AJAR SW LR DOOR AJAR SW SECURITY INDICATOR SERIAL DATA SPLICE PACK SUT TAN WIRE TBC BATT FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE

1 14 26 SUPPLY VOLTAGE SUPPLY VOLTAGE LOW REF BACK ONLY IND BACK ONLY INDICATOR BACK ONLY SELECT BACK, CUSHION SELECT BATT + BCK, CSH SELECT BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONNECTOR DDM FUSE DK BLU WIRE DK GRN WIRE DK LT DK PNK WIRE DRIVER BACK HEATED SEAT ELEMENT DRIVER CUSHION HEATED SEAT ELEMENT DRIVER DOOR MODULE DRIVER MEMORY SEAT MODULE (BELOW LEFT FRONT SEAT) FRONT PASSENGER DOOR MODULE GRN WIRE GROUND GRY WIRE HEAT MODE SELECT HI HEAT IND HI HEAT INDICATOR HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK I/P JUNCTION BLOCK (ON LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LOW HEAT IND LOW HEAT INDICATOR LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MED HEAT IND MED HEAT INDICATOR MEMORY/HEATED SEAT SWITCH ORG/ WIRE PASSENGER BACK HEATED SEAT ELEMENT PASSENGER CUSHION HEATED SEAT ELEMENT PDM FUSE PNK WIRE PNK/ DK WIRE PPL RED WIRE RED/WHT WIRE RT DOORS CIRCUIT BREAKER SEATS CIRCUIT BREAKER SERIAL DATA SWITCH POWER TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

14 22 B+ CLASS 2 SERIAL DATA 4 HI IND CONTROL 4 LO IND CONTROL DIFF LOCK IND CONTROL 4 HI LOCKED IND CONTROL 4 HI LOCKED IND 4-HI IND 4-LO IND BACK ONLY IND BACK ONLY IND LOW HEAT IND ILLUM BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES DDM FUSE PDM FUSE DIMMING INPUT DIMMING RETURN DK GRN WIRE DRIVER DOOR MODULE (DDM) (IN DRIVERS DOOR PART OF SWITCH ASSEMBLY) DRIVER WINDOW/ DOOR LOCK SWITCH DRL OFF IND FRONT PASSENGER WINDOW/DOOR LOCK SWITCH GROUND GRY WIRE GRY/BLK WIRE HEADLAMP ON INDICATOR HEADLAMP SWITCH HEATED SEAT SWITCH HIGH HEAT IND HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) ILLUM ILLUM CTRL ILLUMINATION GND INSTRUMENT PANEL DIMMING LED DIMMING SUPPLY I/P LAMPS DIMMING SUPPLY LBEC 2 FUSE LOCKOUT IND LOCKOUT IND CTRL LT BLU WIRE LT GRN/BLK WIRE MED HEAT IND MED HEAT IND LOW HEAT IND MEMORY/HEATED SEAT SWITCH ORG/ WIRE ORG/BLK WIRE PNK WIRE PPL PPL PNK DRL OFF IND CTRL HEADLAMP ON IND CTRL 5 VOLT REF WIRE PPL/WHT WIRE REAR DIFFERENTIAL LOCK IND RED WIRE SWITCH ILLUM. TAN/BLK WIRE TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLAMP SWITCH) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMP) WHT/BLK WIRE YEL WIRE

2 4 1240 1050 BATTERY GROUND 22 14 1046 4140 CLASS 2 SERIAL DATA BATTERY 22 14 1047 4240 CLASS 2 SERIAL DATA BATTERY 3 2 1 4 PPL LOW REF VERT POS SIG 5 VOLT REF HORIZ POS SIG 5 4 3 VERT POS SIG 5 VOLT REF HORIZ POS SIG 8 6 1 MIR MTR RT CTRL MIR MTR RETRACT CTRL MIR MTR EXTEND CTRL 9 7 MIR MTR DWN CTRL MIR MTR COMMON BATTERY BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DOWN DRIVER DOOR MODULE (DDM) (BEHIND DRIVER'S DOOR PANEL) DRIVER OUTSIDE REARVIEW MIRROR EXIT EXTEND FRONT PASSENGER OUTSIDE REARVIEW MIRROR GROUND HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT LEFT SELECT LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MEM 1 MEM 2 MEM 2 SW SIG MEM 1 SW SIG BATT (+) MEMORY/ HEATED SEAT SWITCH MIRROR CONTROL SWITCH ORG/ WIRE PASSENGER DOOR MODULE (PDM) (IN PASSENGER DOOR) PDM FUSE PNK WIRE PPL PPL LOW REF PPL/WHT WIRE RED WIRE RED/WHT WIRE RETRACT RIGHT RIGHT SELECT RT DOOR CIRCUIT BREAKER SWITCH PWR TAN WIRE WHT WIRE YEL WIRE

10 12 PNK WIRE 5 16 MIR SIGNAL LOW REF PNK WIRE 8 7 PNK WIRE AIR TEMP SENSOR AMB AIR TEMP DISPLAY AMBIENT LIGHT SENSOR BACK UP LAMP VOLTAGE OUTPUT BACK UP VOLTAGE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (ON TOP LEFT SIDE OF DASH) BRN WIRE COMPASS DISPLAY COMPUTER DATA LINES SYSTEM DK GRN/WHT WIRE DRIVER DOOR MODULE (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR ELECTRO- CHROMIC ELECTROCHROMIC MIRROR GROUND GRY WIRE HOT IN RUN HVAC 1 FUSE I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) IGN 1 INSIDE REARVIEW MIRROR LEFT I/P FUSE BLOCK (BEHIND LOWER LEFT SIDE OF DASH) LOW REF LT GRN WIRE PNK WIRE REAR LIGHT SENSOR SERIAL DATA YEL WIRE

BATTERY POSITIVE VOLTAGE BCM CLASS 2 SERIAL DATA BLK WIRE BODY CONTROL MODULE (BCM) (ON TOP LEFT SIDE OF DASH, ABOVE I/P FUSE BLOCK) BRN WIRE COMPUTER DATA LINES SYSTEM DDM CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DOOR LOCKS DOWN DRIVER DOOR MODULE (DDM) (BEHIND DRIVER'S DOOR PANEL) DRIVER WINDOW MOTOR (IN DRIVER'S DOOR) DRIVER WINDOW SWITCH FRONT PASSENGER WINDOW SWITCH FRONT PASSENGER WINDOW MOTOR (IN FRONT PASSENGER DOOR) FRONT PASSENGER WINDOW SWITCH GROUND GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF DASH) LED LOGIC LEFT FRONT POWER WINDOW MOTOR CONTROL LEFT FRONT POWER WINDOW MOTOR DOWN CONTROL LEFT FRONT POWER WINDOW MOTOR UP CONTROL LEFT REAR WINDOW MOTOR (IN LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LOGIC LR PWR WNDO LOCKOUT CNTRL LR WNDO DWN RELAY CNTRL LR WNDO UP RELAY CNTRL LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE ORG/ WIRE PASSENGER DOOR MODULE (FPDM) (IN PASSENGER'S DOOR) PDM CLASS 2 SERIAL DATA PDM FUSE RIGHT REAR WINDOW MOTOR (IN RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR PWR WNDO LOCKOUT CNTRL RR WNDO DWN RELAY CNTRL RR WNDO UP RELAY CNTRL RT DOORS CIRCUIT BREAKER SWITCH POWER TAN WIRE WHT WIRE WINDOW DWN RELAY WINDOW LOCKOUT SWITCH WINDOW UP RELAY YEL WIRE

28 29 30 PNK WIRE 30 31 32 PNK WIRE 9 10 PNK WIRE ACCELERATOR PEDAL POSITION SENSOR (BEHIND ACCELERATOR PEDAL) ACT CNTRL APP SENS 1 APP SENS 2 BLK WIRE BLK/WHT WIRE BRN WIRE CRUISE CONTROL SYSTEM CRUISE REQ DATA DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECT/ECM FUSE FUSE GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, START I/P FUSE BLOCK IGN ING 0 FUSE LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE R/A INPUT RED WIRE RED/BLK WIRE RED/WHT WIRE REF LOW S/C INPUT SIGNAL STP LP IN TAC CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE ACTUATOR CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) TP SENS 1 TP SENS 2 UNDERHOOD FUSE BLOCK VEH STOP FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE