Hummer H2 I (2002-2007) i/p junction block (lower right side of dash) 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

11 12 PPL AMBIENT LIGHT SENS LO REF AMBIENT LIGHT SENS SIG RIGHT SUNLOAD SENSOR SIG LEFT SUNLOAD SENSOR SIG AMBIENT LIGHT SENSOR AMBIENT LIGHT/ SUNLOAD SENSOR ASSEMBLY (TOP CENTER OF DASH) BLK WIRE BODY CONTROL MODULE (TOP LEFT SIDE OF DASH, ABOVE I/P FUSE BLOCK) BRN WIRE CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE GRY WIRE I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) LEFT AIR TEMPERATURE ACTUATOR (LOWER MIDDLE UNDERSIDE OF HVAC ASSEMBLY) LEFT SOLAR SENSOR LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) PPL RECIRCULATION ACTUATOR (TOP FRONT OF HVAC ASSEMBLY) RIGHT AIR TEMPERATURE ACTUATOR RIGHT SOLAR SENSOR TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AJAR BLK WIRE BLK/WHT WIRE BRN WIRE DK GRN WIRE FRONT PASSENGER DOOR COURTESY LIGHT FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR MODULE (FPDM) (IN RIGHT FRONT DOOR BELOW SWITCH ASSEMBLY) GRY/BLK WIRE I/P COMPARTMENT LAMP I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (BELOW LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) LEFT "B" PILLAR COURTESY LAMP LT BLU WIRE ORG/ WIRE RIGHT "B" PILLAR COURTESY LAMP TAN WIRE 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

A/T SHIFT LEVER POSITION INDICATOR LAMP A/T SHIFT LOCK SOLENOID BLK WIRE BLOWER MOTOR CIGAR LIGHTER CONSOLE AUXILIARY POWER OUTLET DATA LINK CONNECTOR DRIVER DOOR MODULE FLOOR SHIFT ASSEMBLY ELECTRIC PARK LOCK SOLENOID FRONT 1 AUXILIARY POWER OUTLET FRONT 2 AUXILIARY POWER OUTLET FRONT PASSENGER DOOR MODULE GARAGE DOOR OPENER HARN) HVAC CONTROL MODULE I/P FUSE BLOCK (LOWER LEFT SIDE SIDE OF DASH) DOOR UNLOCK RELAY DOOR LOCK RELAY I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INSIDE AIR TEMPERATURE SENSOR ASSEMBLY INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER TOW/HAUL SWITCH HEADLAMP SWITCH LEFT FRONT CLEARANCE LAMP LEFT FRONT COURTESY/ READING LAMP LEFT INNER ROOF OFF- ROAD LAMP LEFT OUTER ROOF OFF- ROAD LAMP LEFT REAR HEATED SEAT SWITCH LEFT VANITY MIRROR LAMP NCA WIRE OFF ROAD LAMPS RELAY 2 OFF ROAD LAMPS SWITCH RIDE HEIGHT SWITCH RIGHT FOOTWELL COURTESY LAMP I/P COMPARTMENT LAMP RIGHT FRONT CLEARANCE LAMP RIGHT FRONT COURTESY/ READING LAMP THIRD ROW DOME/ READING LAMP RIGHT REAR HEATED SEAT SWITCH RIGHT VANITY MIRROR LAMP ROOF MARKER LAMP ROOF MARKER LAMP ROOF MARKER LAMP SECOND ROW DOME/ READING LAMP SUNROOF ASSEMBLY SUNROOF RELAY TRANSFER CASE SHIFT CONTROL SWITCH W/ OFF-ROAD LAMPS W/O OFF-ROAD LAMPS WINDSHIELD WIPER MOTOR MODULE

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

BLK WIRE BLU WIRE GRILLE GUARD OFF- ROAD LAMPS HOT AT ALL TIMES I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) INNER ROOF OFF- ROAD LAMPS NCA WIRE OFF ROAD LAMPS RELAY 1 OFF ROAD LAMPS RELAY 2 OFF ROAD LAMPS SWITCH OUTER ROOF OFF- ROAD LAMPS OUTER ROOF OFF- ROAD LAMPS INNER ROOF OFF- ROAD LAMPS PPL PPL PPL RED WIRE STUD 2 STUD 2 FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT NEAR BATTERY) YEL WIRE

AIR SUSPENSION MODULE AUX PWR 1 FUSE AUXILIARY POWER OUTLET- FRONT 1 AUXILIARY POWER OUTLET- FRONT 2 BLK WIRE BLOWER FUSE BLOWER MOTOR CARGO AUXILIARY POWER OUTLET (SUT) CONSOLE AUXILIARY POWER OUTLET 1 CONSOLE AUXILIARY POWER OUTLET 2 DEFOG RELAY ELECTRONIC BRAKE CONTROL MODULE (EBCM) F/PMP RELAY FROM SUNROOF FUSE (DIAGRAM 1 OF 6) FUSE GARAGE DOOR OPENER HVAC CONTROL MODULE HVAC/ECAS FUSE TREC FUSE I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INFO FUSE INSTRUMENT PANEL CLUSTER IPC/DIC FUSE LEFT REAR HEATED SEAT MODULE ORG/ WIRE PCM B FUSE POWERTRAIN CONTROL MODULE REAR AUXILIARY POWER OUTLET (EXCEPT SUT) RED WIRE RIGHT REAR HEATED SEAT MODULE RR DEFOG FUSE SPLICE PACK 410 (MIDDLE OF RIGHT REAR "D" PILLAR) STOP LP FUSE STOPLAMP SWITCH TO LBEC 1 FUSE (DIAGRAM 3 OF 6) TRANSFER CASE SHIFT CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE COMMUNICATION INTERFACE MODULE YEL WIRE