Hummer H2 I facelift (2007-2009) power distribution system Wiring diagrams

4 5 6 7 8 9 10 11 12 13 14 15 16 BATT + GND BRAKE SWITCH SIG AUTOMATIC TRANSMISSION AUX HVAC IGN FUSE 41 BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) FUSE 17 HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IGN VOLTAGE IGNITION SWITCH INSTRUMENT CLUSTER PANEL (IPC) LOCK LOGIC LOW REFERENCE LT BLU/WHT WIRE LT GRN/BLK WIRE MISC IGN FUSE 37 ORG/BLK WIRE PC SOLENOID 1 CONTROL PC SOLENOID 2 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL PC SOLENOID HIGH CONTROL PNK WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE PRESSURE CONTROL (PC) SOLENOID PRESSURE CONTROL (PC) SOLENOID VALVE 1 RED/WHT WIRE RUN WIRE SHIFT SOLENOID (SS) 1 CONTROL SHIFT SOLENOID (SS) 2 CONTROL SHIFT SOLENOID (SS) VALVE 1 SHIFT SOLENOID (SS) VALVE 2 TAN WIRE TAN/BLK WIRE TCM BATT FUSE 12 TO INTERNAL MODE SWITCH (DIAGRAM 2 OF 2) TORQUE CONVERTER CLUTCH (TCC) PRESSURE CONTROL (PC) SOLENOID TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TOW/ HAUL IND TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VALVE VALVE 2 VALVE 3 VALVE 4 VALVE 5 WHT LT BLU/ WIRE 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

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

AUDIO AMPLIFIER (UNDER FRONT FLOOR CONSOLE, BETWEEN FRONT SEATS) DIGITAL RADIO RECEIVER (BEHIND GLOVE BOX) DK GRN WIRE DRIVER DOOR/LOCK WINDOW SWITCH HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH, BEHIND ACCESS PANEL) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER LEFT FRONT SEAT) INSTRUMENT PANEL CLUSTER (IPC) LO GMLAN SERIAL DATA LTR FUSE 44 MEMORY SEAT MODULE (MSM) (UNDER DRIVER SEAT) NCA WIRE PASSENGER DOOR LOCK/ WINDOW SWITCH POWER DISTRIBUTION SYSTEM RADIO REAR HEATED SEAT CONTROL MODULE (UNDER FRONT OF LEFT REAR SECOND ROW SEAT) REAR SEAT AUDIO (RSA) CONTROL (AT REAR OF CENTER CONSOLE) RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH BEHIND END TRIM PANEL) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) W/ HEAD CURTAIN AIR BAG W/ ONSTAR, DIGITAL RADIO W/O ONSTAR, DIGITAL RADIO

12 2 PNK WIRE 4 9 PNK WIRE AUTOMATIC DAY/NIGHT MIRROR SIG AUX HVAC IGN FUSE 41 BACKUP LAMP RLY CTRL BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/WHT WIRE DRAIN DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR ELECTROCHROMIC MIRROR GROUND GRY WIRE GRY/BLK WIRE HIGH SPEED SER DATA BUS- HOT W/ RUN/ CRANK RELAY ENERGIZED I/P FUSE BLOCK (ON LOWER LEFT SIDE OF I/P, BEHIND ACCESS PANEL) IGN INSIDE REARVIEW MIRROR (ISRVM) LOGIC LOW REF LT BLU WIRE NAVIGATION SYSTEM NCA WIRE OUTSIDE AIR TEMP DISPLAY OUTSIDE AIR TEMPERATURE SIG PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VIDEO+ WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DIFF LOCK SW SIG 1553 1552 1342 MOTOR CONTROL B MOTOR CONTROL A BATTERY POSITIVE VOL GROUND 2501 2500 SERIAL DATA BUS- SERIAL DATA BUS+ 4-HI IND 4-HI LOCK IND 4-LO LOCK IND AUX HVAC IGN FUSE 41 BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIFFERENTIAL LOCK ACTUATOR (ON REAR AXLE AT TOP OF DIFFERENTIAL HOUSING) DIFFERENTIAL LOCK IND DIFFERENTIAL LOCK SWITCH DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) GRY WIRE HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED HOT W/ RUN/CRNK RELAY ENERGIZED I/P MULTI-FUNCTION SWITCH IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LOCK LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MISC IGN FUSE 37 NCA WIRE NEUTRAL 4 LO LOCK 4 HI LOCK 4 HI NEUTRAL IND ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE REAR WIPER WASHER SW RED/BLK WIRE RUN WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE ENCODER MOTOR (AT LEFT REAR OF TRANSFER CASE ASSEMBLY) TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLIGHT SWITCH) TRANSFER CASE SHIFT CONTROL SWITCH TREC FUSE 58 UNDERHOOD FUSE BLOCK WHT WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK/ORG WIRE BRN WIRE BRN/WHT WIRE DK GRN/WHT WIRE ECM/THROT CONT FUSE 3 ENG FUSE 2 FUEL INJECTORS (UPPER LEFT SIDE OF ENGINE) GRY WIRE GRY/WHT WIRE HEATED OXYGEN HEATED OXYGEN SENSOR HOT AT ALL TIMES INJ-A FUSE 20 INJ-B FUSE 11 IPC FUSE 39 NCA WIRE ORG/WHT WIRE PNK PNK 3 3 WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PWR/ TRN RELAY RED/BLK WIRE RED/WHT WIRE SENSOR 2 (IN RIGHT EXHAUST PIPE, AFTER CATALYTIC CONVERTER) SNSR FUSE 16 SNSR FUSE 6 TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE WHT/BLK WIRE YEL WIRE