Diagram sections — 32 (71 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 3) for Hummer H2 2008 List of elements for Automatic A/C Wiring Diagram (1 of 3) for Hummer H2 2008: 78 5-volt reference A/c low pressure switch (on right side of a/c a A/c on ind A/c on switch Accumulator at rear of engine compt) Air request ind Air request switch Assembly ctrl Auto switch Aux hvac ign fuse 41 10a Auxiliary air temperature actuator (right rear of cargo area on the front of auxiliary hvac module) Auxiliary blower motor (upper rear of auxiliary hvac module) Auxiliary blower motor control module (rear of auxiliary hvac module above blower motor-auxiliary) Auxiliary mode actuator (left front of auxiliary hvac module assembly) B(+) Computer data lines system Ctrl Door position sig Fan down switch Fan up switch Front defogger ind Front defogger switch G103 (on front of right cylinder head) G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) G410 (on passenger side rear of body near d-pillar behind trim panel) Gmlan serial data Gnd Ground Hot at all times Hot w/ run/crank relay energized Hvac batt fuse 33 10a Hvac blwr fuse 61 40a Hvac control module Hvac ign fuse 46 10a I/p fuse block (on lower left side of i/p, behind access panel) Ig voltage J215 J441 J442 J443 Left i/p junction block (lower left side of instrument panel to left of steering column) Left i/p junction block x11 (lower left side of instrument panel to left of steering column) Left temperature control Lo press sens sig Logic Logic speed down Low reference Mode Mode door ctrl Mode down switch Mode up switch Motor speed ctrl Off switch On/ off Pnk Position sens sig Power distribution system Rear defogger ind Rear defogger switch Rear hvac fuse 30a Rear seat audio (rsa) control Recir door ctrl Recir- culation ind Recir- culation switch Right sw sig Right temperature control Sens sig Serial data Speed ctrl Speed up Sunload sens sig Tan Temp door ctrl Temp down Temp sens sig Temp up Underhood fuse block (at left side of engine compt, near battery) Automatic A/C Wiring Diagram (2 of 3) for Hummer H2 2008 List of elements for Automatic A/C Wiring Diagram (2 of 3) for Hummer H2 2008: 42 (at right lower side of dash, on hvac assembly) blower motor (behind right side of dash, on hvac assembly) blower motor control module (left front of engine compt below battery & fuse block underhood) engine control module (left side of engine block, between cylinder 3 & cylinder 5) engine coolant temperature (ect) sensor (on top center of dash) ambient light/ sunload sensor 4a1 4a4 4a5 4a6 4b2 4b3 4b5 4b6 5v ref A/c clutch A/c cmprsr fuse 15 10a A/c cmprsr relay Ect sig G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Gnd Headlights system Hi spd fan Hot at all times Left air temperature actuator (bottom center of hvac module assembly) Left i/p junction block (lower left side of instrument panel to left of steering column) Left sunload sensor Lo spd fan Logic Low ref Mode actuator (on left side of hvac assembly) Pnk Recirculation actuator (on top front of hvac assembly) Red Right air temperature actuator (at middle top of hvac assembly) Right i/p junction block (right side of i/p behind end trim panel) Right sunload sensor Rly ctrl Sens sig Spd ctrl Tan Underhood fuse block (at left side of engine compt, near battery) Automatic A/C Wiring Diagram (3 of 3) for Hummer H2 2008 List of elements for Automatic A/C Wiring Diagram (3 of 3) for Hummer H2 2008: 35 (at lower right front of engine) a/c compressor clutch (right front corner of vehicle on frame rail near front tow hook) g101 (right front lower engine compt on high pressure line near compressor) a/c refrigerant pressure sensor 4a2 4a3 87a Ambient air temperature sensor (at right front of vehicle, to right of radiator support) Cooling fan diode 1 Cooling fan diode 2 Fan 1 fuse 50 40a Fan 2 fuse 53 40a Fan control relay Fan hi relay Fan lo relay G100 (on left front frame body mount) G104 (at rear of left cylinder head) G203 (at lower right side of dash, behind right kick panel) Hot at all times Inside air temperature sensor (in left front headliner above driver) J100 J101 J102 J206 J301 Left engine cooling fan (left front of engine compt near radiator) Left i/p junction block (lower left side of instrument x9 panel to left of steering column) Lower left air temperature sensor (near middle left side of i/p under left round discharge duct) Lower right air temperature sensor (near middle right side of i/p in front of rectangular discharge duct) Pwr/ trn relay Right engine cooling fan (right front of engine compt near radiator) Right i/p junction block (right side of i/p x4 behind end trim panel) Tan Underhood fuse block (at left side of engine compt, near battery) Upper left air temperature sensor (at top rear of i/p below dash trim panel to left of ambient light/sunload sensor) Upper right air temperature sensor (at top rear of i/p below dash trim panel to right of ambient light/sunload sensor) Compressor Wiring Diagram for Hummer H2 2008 List of elements for Compressor Wiring Diagram for Hummer H2 2008: 27 5v ref A/c cmprsr fuse 15 10a A/c comp A/c compressor clutch (at lower right front of engine) A/c compressor relay A/c low pressure switch (on right side of a/c accumulator at rear of engine compt) A/c on ind A/c on switch A/c ref pre A/c refrigerant pressure sensor (right front lower engine compt on high pressure line near compressor) Cl rly ctrl Class 2 Class 2 ser data Computer data lines system G103 (on front of right cylinder head) G104 (at rear of left cylinder head) Hot at all times Hvac control module J102 (in engine harness, 4 cm from knock sensor connector harness junction to engine harness) J103 (in engine harness, 10 cm from junction of fuel injector 3 harness to engine harness) Lo press sens sig Logic Low ref Serial data Tan Underhood fuse block (at left side of engine compt, near battery) X1 sens sig engine control module (left front of engine compt below battery & fuse block underhood)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Hummer H2 2008 List of elements for Anti-lock Brakes Wiring Diagram for Hummer H2 2008: 69 (mounted to lower left side of master cylinder) (on left side body mount, in front of driver door) g300 (on left side of dash, behind left kick panel) g200 (on right rear wheel hub assembly) 12v ref 5v ref Abs ind Abs pump m Ang sens sig Angle sens a Audio w/ dvd navigation Body control module (bcm) (on lower left side of i/p to the left of steering column) Brake fluid level switch Brake ind Brk sens sig Brk sw sig Can bus hi Can bus lo Class 2 ser data Computer data lines system Ecm ign fuse 47 15a Electronic brake control module (ebcm) (left rear of engine compt behind fuse block-underhood to left of brake fluid reservoir) G300 (on left side body mount, in front of driver door) Gmlan bus- Gnd Hi spd gmlan + Hi spd gmlan - Hot at all times Hot w/ run/crnk relay energized Ign Instrument panel cluster (ipc) Interior lights system Ipc fuse 39 10a J110 J355 J356 J360 (10 cm from fuel pump flow control module main harness breakout) 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 of steering column) Left i/p junction block (lower left side of x1 instrument panel to left of steering column) Left rear wheel speed sensor (on left rear wheel hub assembly) Lo ref Logic Low ref Motor Nca Park brake switch (part of parking brake assembly) Pnk Prk brk sw R speed sens sig R wheel spd sig Radio Right front wheel speed sensor (on right front wheel hub assembly) Right rear wheel speed sensor Sens phase b Sens phase c Serial data Steering angle sensor (mounted to steering column, below shift interlock solenoid) Stop lamp switch (on top of brake pedal bracket) Tan Traction control ind Underhood fuse block (at left side of engine compt, near battery) Vehicle spd sig Vses/ abs 1 fuse 52 60a Vses/ abs 2 fuse 7 30a Vss Yaw & lateral acceleration sensor (under center console trim panel)
ANTI-THEFT Forced Entry Wiring Diagram for Hummer H2 2008 List of elements for Forced Entry Wiring Diagram for Hummer H2 2008: 62 (on lower left side of i/p, behind access panel) i/p fuse block 3b2 3b4 4a7 Ajar sw sig Aux hvac ign fuse 41 10a Batt pos Batter Body control module (bcm) (on lower left side of i/p to the left of steering column) Closed sw sig Coax Computer data lines system Data bus+ Data bus- Ddm fuse 15a Driver door latch (inside driver door below outside door handle) Driver door lock/window switch G103 (on front of right cylinder head) G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Gmlan serial data Ground Hood ajar switch (part of hood latch assembly) Hot at all times Hot w/ run/crank relay energized I/p fuse block (on lower left side of i/p, behind access panel) Ign Info fuse 5a Instrument panel cluster (ipc) J217 Keyless entry antenna Lck 1 fuse 15a Lck 2 fuse 15a Left i/p junction block (lower left side of instrument panel to left of steering column) Left i/p junction block (lower left side x1 Left rear door latch (at left rear of door) Liftgate door lock actuator (at lower center of liftgate) Lock ctrl Lock sw sig Logic Lt dr circuit breaker 25a Nca Of instrument panel to left of steering column) Passenger door latch (inside passenger door below outside door handle) Passenger door lock/window switch Pdm fuse 15a Pnk Rear door lock/unlock pcb relay Remote control door lock receiver (rcdlr) (center of instrument panel below trim panel to left of clock) 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 cb2 25a Security ind Serial data Suv Tan Underhood fuse block (at left side of engine compt, near battery) Unlck 1 fuse 15a Unlck 2 fuse 15a Unlock control Unlock ctrl Volt Pass-Key Wiring Diagram for Hummer H2 2008 List of elements for Pass-Key Wiring Diagram for Hummer H2 2008: 21 Acc Aux hvac ign fuse 41 10a Computer data lines system Dlis fuse 29 2a G200 (on left side of dash, behind left kick panel) Hot at all times Hot w/ run/crank relay energized Ignition switch Instrument panel cluster (ipc) J212 J213 J219 Logic Nca b+ nca acc volt nca ground nca serial data nca Off Pnk Run Security ind Start Theft deterrent module (tdm) (right side of steering column near ignition key cylinder) Underhood fuse block (at left side of engine compt, near battery)
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Body Control Modules Wiring Diagram (1 of 2) for Hummer H2 2008: 67 12v ref 5v ref A/t shift lock ctrl Acc Ambient light sens sig Anti-lock brakes system Anti-theft system Batt pos volt Bcm fuse 10a Body control module (bcm) (on lower left side of i/p to the left of steering column) Brake sw sig Computer data lines system Courtesy lamp ctrl Cruise control system Cruise ctrl ind dimming ctrl Cruise ctrl sw sig Dim fuse 15a Exterior lights system G200 (on left side of dash, behind left kick panel) Gnd Hazard sw left turn sig Hazard sw right turn sig Hazard sw sig Headlamp dimmer sw sig Headlamp flash to pass sig Headlamp sw park lamps sig Headlamps off sig Headlamps on sig Headlights system Hi spd gmlan serial data bus + Hi spd gmlan serial data bus - Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) Ign iii volt Ign volt Ignition switch Inadvertent pwr ctrl Ind dimming ctrl Instrument lamps dimmer sw sig Instrument lamps dimming ctrl Interior lamp defeat sw sig Interior lights system Is lps fuse 20a J213 Led dimming sply Lo spd gmlan serial data Low ref Off Pnk Run Security ind lamp ctrl Serial data communication enable Shift interlock system Sound systems Sound, cruise control & transmissions systems Start Steering wheel ctrl sw sig Tan Tap up/tap dn sw sig Tow/haul sw sig Traction ctrl sw sig Transmissions system Windshield washer sw sig Windshield wiper sw hi sig Windshield wiper sw lo sig Wiper/washer system X1 left i/p junction block (lower left side of x1 dash to left of steering column) Body Control Modules Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Body Control Modules Wiring Diagram (2 of 2) for Hummer H2 2008: 68 (on front of right cylinder head) g103 5v ref Accessory wakeup serial data Anti-theft system Backup lamp rly ctrl Batt pos volt Body control module (bcm) (on lower left side of i/p to the left of steering column) Chmsl ctrl Ctsy fuse 15a Current sens sig Door locks system Dr lock ctrl Drl rly ctrl Exterior lights system Exterior lights, mirrors & navigation systems Front windshield wiper sw hi sig Gnd Headlamp hi beam rly ctrl Headlamp lo beam rly ctrl Headlights system Hood ajar sw sig Hood closed sw sig Horn rly ctrl Horns system Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) Ign volt Instrument cluster system Interior lights system Intrusion sens alarm on sig Intrusion sens armed sig Ipc fuse 41 10a Left trailer turn sig lamp ctrl Lf turn sig lamp ctrl Low ref Lr dr ajar sw sig Lr turn sig lamp ctrl Lt stop trn fuse 15a Master sw lockout rr sig Master sw lockout sig Master sw lr dn sig Master sw lr up sig Master sw rr dn sig Master sw rr up sig Midgate ajar ind sig Pnk Power distribution system Power windows system Prk brk sw sig Prk lamp rly ctrl Rear dr lock sw sig Rear wiper/washer sw ctrl Rf turn sig lamp ctrl Right trailer turn sig lamp ctrl Rr dr ajar sw sig Rr turn sig lamp ctrl Rt stop trn fuse 15a Run/crank rly ctrl Starting/charging system Stop lamp ctrl Stop lamps fuse 15a Tan Tcc brk sig Underhood fuse block (at left side of engine compt, near battery) Windshield wiper mtr prk sw sig Windshield wiper sw sig 1 Windshield wiper sw sig 2 Wiper/washer system
COMPUTER DATA LINES Computer Data Lines Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Computer Data Lines Wiring Diagram (1 of 2) for Hummer H2 2008: 32 (not used) (upfitter provisional) 3b1 Audio amplifier (under front floor console, between front seats) Digital radio receiver (behind glove box) 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) Inflatable restraint vehicle rollover sensor (below center console in front of audio amplifier) Instrument panel cluster (ipc) Jx205 (below left side of dash, to left of steering column) Jx206 (w/ onstar & digital radio) (below left side of dash, near instrument panel to engine compt pass through) Jx207 (on left side of dash, near left kick panel) Left i/p junction block (lower left side of dash panel, to left of steering column) Lo gmlan serial data Ltr fuse 44 15a Memory seat module (msm) (under driver seat) Nca 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) Remote control door lock receiver (rcdlr) (center of instrument panel below trim panel to left of clock) Right i/p junction block (right side of dash behind end trim panel) Theft deterrent module (tdm) (right side of steering column near ignition key cylinder) 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 Computer Data Lines Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Computer Data Lines Wiring Diagram (2 of 2) for Hummer H2 2008: 27 (on lower left side of dash, to the left of steering column) body control module (bcm) Air suspension control module (center rear of vehicle, in front of trailer hitch) Data communication Data link connector (dlc) (lower left side of instrument panel to left of steering column) Data link resistor (in chassis harness on rear chassis crossmember near evaporative emission canister) Electronic brake control module (ebcm) (left rear of engine compt behind fuse block-underhood to left of brake fluid reservoir) Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) Fuel pump flow control module (mounted to rear frame near the evap canister vent solenoid valve) G200 (on left side of dash, near left kick panel) G203 (at lower right side of dash, near right kick panel) Hi ser data bus+ Hi ser data bus- J225 J360 (in chassis harness, 10 cm from fuel pump flow control module main harness breakout) Left i/p junction block (lower left side of dash panel to left of steering column) Left i/p junction block (lower left side of dash panel, to left of steering column) Lo gmlan ser data Lo gmlan serial data Ser data comm Tan Transfer case shift control module (behind headlight switch) Transmission control module (tcm) (part of automatic transmission) Vehicle communication interface module (vcim) (at center of dash, below hvac control module) W/ off road suspension chassis package W/ onstar W/o off road suspension chassis package W/o onstar
COOLING FAN Cooling Fan Wiring Diagram for Hummer H2 2008 List of elements for Cooling Fan Wiring Diagram for Hummer H2 2008: 25 87a Cooling fan diode 1 Cooling fan diode 2 Ect sens sig Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) Engine coolant temperature (ect) sensor (left side of engine block, between cylinder 3 & cylinder 5) Fan cntrl relay Fan hi relay Fan lo relay Fan-1 fuse 50 40a Fan-2 fuse 53 40a G100 (on left front frame body mount) G101 (right front corner of vehicle on frame rail near front tow hook) Hi spd rly ctrl Hot at all times J100 J101 Left engine cooling fan (left front of engine compt near radiator) Low ref Low spd rly ctrl Pwr/ trn relay Right engine cooling fan (right front of engine compt near radiator) Rly coil ctrl Tan Under- hood fuse block (at left side of engine compt, near battery)
CRUISE CONTROL Cruise Control Wiring Diagram for Hummer H2 2008 List of elements for Cruise Control Wiring Diagram for Hummer H2 2008: 58 (lower left side of dash to left of steering column) left i/p junction block (on left side of dash, behind left kick panel) g200 12v ref 5v ref 1 5v ref 2 Accelerator pedal position (app) sensor (above accelerator pedal assembly) App sen 1 sig App sen 2 sig Aux hvac ign fuse 41 10a B11 Bat pos volt Bat pos vot Body control module (bcm) (on lower left side of i/p to the left of steering column) Bracket) Computer data lines system Cruise control ind dimming ctrl Cruise control switch signal Cruise ind Cruise switch E pnk Ecm batt fuse 47 10a Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) G103 (on front of right cylinder head) G200 (on left side of dash, behind left kick panel) Ground Hi spd gmlan ser data bus+ Hi spd gmlan ser data bus- Hot at all times Hot w/ run/ crank relay energized Ign Inflatable restraint steering wheel module coil (on steering column, behind steering wheel) Instrument panel cluster (ipc) Ipc fuse 41 10a J103 J235 (in steering wheel harness between right & left steering wheel control switches) Left i/p junction block (lower left side of dash to left of steering column) Left i/p junction block (lower left x1 side of dash to left of steering column) Left steering wheel control switch Logic Low ref Misc ign fuse 37 10a Pnk Ser data Ser data bus+ Ser data bus- Sound systems Stop lamp switch (on top of brake pedal pnk Tac motor ctrl 1 Tac motor ctrl 2 Tan Tcc brake sig Throttle body (top of engine, mounted to front of intake manifold) Tp sens 1 sig Tp sens 2 sig Underhood fuse block (at left side of engine compt, near battery) Vehicle speed sensor (vss) (on rear of transfer case assembly above output shaft) Vss high sig Vss low sig
DEFOGGERS Defoggers Wiring Diagram, SUT for Hummer H2 2008 List of elements for Defoggers Wiring Diagram, SUT for Hummer H2 2008: 29 (in midgate harness 40 cm from midgate latch right breakout) j337 A7 x4 B5 x4 Class 2 ser data Computer data lines system Contact plate Defog rly ctl Driver door lock/ window switch Driver outside rearview mirror G104 (at rear of left cylinder head) G403 (at left rear of passenger compt near midgate behind trim panel) Ground Hot at all times Hvac control module J102 J339 Logic Midgate window motor (inside midgate on left side) Mirror htr Passenger door lock/ window switch Passenger outside rearview mirror Rear defog fuse 42 30a Rear defog relay Rear defogger ind Rear defogger switch Rear window defogger grid Serial data Underhood fuse block (at left side of engine compt, near battery) X2 n5 Defoggers Wiring Diagram, SUV for Hummer H2 2008 List of elements for Defoggers Wiring Diagram, SUV for Hummer H2 2008: 26 Class 2 ser data Computer data lines system Defog rly ctl Driver door lock/ window switch Driver outside rearview mirror G104 (at rear of left cylinder head) G410 (on passenger side rear of body near d-pillar behind trim panel) Ground Hot at all times Hvac control module J102 J904 Logic Mirror htr Passenger door lock/ window switch Passenger outside rearview mirror Rear defog fuse 42 30a Rear defog relay Rear defogger ind Rear defogger switch Rear window defogger grid Serial data Underhood fuse block (at left side of engine compt, near battery) X2 n5 X4 a7 X4 b5
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Hummer H2 2008 List of elements for Electronic Suspension Wiring Diagram for Hummer H2 2008: 42 5v ref Active ind ctrl Air susp relay Air susp sig Air suspension control module (center rear of vehicle, in front of trailer hitch) Air suspension relay (mounted on left fender behind the battery) Auto level ctrl Body control module (bcm) (on lower left side of i/p to the left of steering column) Comp 1 sig Computer data lines system Coone Cotwo Ecas fuse 32 15a Ecas fuse 51 60a Ecas rly ctrl G401 (at left rear frame body mount) G405 (at right rear frame body mount) Gnd Hi spd bus+ Hi spd bus- Hot at all times Hs-gnd Inflator air switch (right rear corner of cargo bed) Inflator sw Inflator sw sig Info not available J360 (in chassis harness, 10 cm from fuel pump flow control module main harness breakout) Left rear air suspension sensor (at left rear frame rail, attached to top of frame) Low ref Lr susp sig Nca Overtemp sig P-t Ride height sw Right rear air suspension sensor (at right rear frame rail, attached to top of frame) Rr susp sens S-four S-three S-two Serial data Tan Underhood fuse block (at left side of engine compt, near battery)
ENGINE PERFORMANCE
6.2L VIN 8 6.2L VIN 8, Engine Performance Wiring Diagram (1 of 5) for Hummer H2 2008 List of elements for 6.2L VIN 8, Engine Performance Wiring Diagram (1 of 5) for Hummer H2 2008: 67 (in chassis harness 39 cm from g401 breakout) j403 (on front of right cylinder head) g103 5-vol 5-volt ref 2 A/c comp A/c pres sig Acc Acc ser data Accelerator pedal position (app) sensor (above accelerator pedal assembly) Air conditioning system App sens 1 App sens 2 Batt positive Body control module (bcm) (on lower left side of i/p to the left of steering column) Computer data lines system Cooling fans system Data bus+ Data bus- Ecm batt fuse 10 10a Ecm ign fuse 47 15a Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) Evap vent Exterior lights system Fan rel ctrl Ftp sig Fuel lvl-pri Fuel pump & sender assembly (in fuel tank) Fuel tank pressure (ftp) sensor (on fuel tank, integral to fuel pump & sender assembly) G103 (on front of right cylinder head) Ground Ho2s hi b1s2 Ho2s hi b2s2 Ho2s ht b1s2 Ho2s ht b2s2 Ho2s lo b1s2 Ho2s lo b2s2 Hot at all times Hot w/ run/crnk relay energized Iat sens sig Ignition switch Ignition vol J103 J130 J213 J356 Lo ref Lock Maf sens sig Mass air flow (maf)/intake air temperature (iat) sensor (in air induction tube) Mil control P/n sig Pnk Pnk a Rel ctrl Relay ctrl Rly coil ctrl Run Start Starting/charging system Tan Tcc brk sig Tcm batt fuse 12 15a Transmissions system Underhood fuse block (at left side of engine compt, near battery) Vehicle speed (vss) sensor (on rear of transfer case assembly above output shaft) Vss hi sig Vss lo sig 6.2L VIN 8, Engine Performance Wiring Diagram (2 of 5) for Hummer H2 2008 List of elements for 6.2L VIN 8, Engine Performance Wiring Diagram (2 of 5) for Hummer H2 2008: 18 Ecm/throt cont fuse 3 15a Eng fuse 2 15a Evaporative emissions (evap) canister vent solenoid valve (lower right rear of vehicle on evaporative emission canister) Fuel injectors (upper left side of engine) Heated oxygen sensor (ho2s) bank 1 sensor 2 (under the vehicle to left side of engine after catalytic converter) Heated oxygen sensor (ho2s) bank 2 sensor 2 (in right exhaust pipe, after catalytic converter) Hot at all times Inj-a fuse 20 20a Inj-b fuse 11 20a Ipc fuse 39 10a Nca O2-a snsr fuse 16 10a O2-b snsr fuse 6 10a Pnk Power distribution system Pwr/ trn relay Tan Underhood fuse block (at left side of engine compt, near battery) 6.2L VIN 8, Engine Performance Wiring Diagram (3 of 5) for Hummer H2 2008 List of elements for 6.2L VIN 8, Engine Performance Wiring Diagram (3 of 5) for Hummer H2 2008: 23 (front of engine, behind water pump) camshaft position (cmp) actuator solenoid valve (lower left side of instrument panel to left of steering column) left i/p junction block (on lower right side of oil pan) engine oil level switch Computer data lines system Engine coolant temperature (ect) sensor (left side of engine block, between cylinder 3 & 5) Engine oil pressure (eop) sensor (on rear side of engine block behind intake manifold) Fuel injectors (upper right side of engine) G103 (on front of right cylinder head) G200 (on left side of dash, behind left kick panel) Gnd Ground distribution system Heated oxygen sensor (ho2s) bank 1 sensor 1 (under the vehicle to left side of engine before catalytic converter) Heated oxygen sensor (ho2s) bank 2 sensor 1 (under the vehicle to right side of engine before catalytic converter) Instrument panel cluster (ipc) Knock sensor (ks) 1 (lower left side of engine) Knock sensor (ks) 2 (lower right side of engine in front of starter) Logic Low engine oil pressure ind Low speed Malfunction indicator lamp Nca Pnk Tan 6.2L VIN 8, Engine Performance Wiring Diagram (4 of 5) for Hummer H2 2008 List of elements for 6.2L VIN 8, Engine Performance Wiring Diagram (4 of 5) for Hummer H2 2008: 44 (5 cm from x111 breakout, between breakouts for ignition coils 4 & 6) (at right side of engine) (left front of engine compt below battery & fuse block underhood) engine control module (ecm) (top of engine mounted to intake manifold, on left side near injector 1) evaporative emission (evap) canister purge solenoid valve (top of engine, mounted to front of intake manifold) throttle body assembly 5v ref2 A pnk Cam sol ctl Camshaft position (cmp) sensor (front of engine above crank pulley) Crankshaft position (ckp) sensor (at lower right rear side of engine block, behind starter solenoid) Ect sig G102 (at left front side of engine block) Gen fdc sig Ho2s ht b1s1 Ho2s ht b2s1 Ignition coil 2 Ignition coil 4 Ignition coil 6 Ignition coil 8 Inj 1 ctl Inj 2 ctl Inj 3 ctl Inj 4 ctl Inj 5 ctl Inj 6 ctl Inj 7 ctl Inj 8 ctl J160 J161 J162 Ks1 sig Ks2 sig Lo ref Manifold absolute pressure (map) sensor (on top rear of engine, on intake manifold) Nca Oil lvl sw sig Pnk Red Sol ctrl Spark plug Starting/ charging system Tac mot ctl 1 Tac mot ctl 2 Tan 6.2L VIN 8, Engine Performance Wiring Diagram (5 of 5) for Hummer H2 2008 List of elements for 6.2L VIN 8, Engine Performance Wiring Diagram (5 of 5) for Hummer H2 2008: 58 (at left side of engine) (mounted to left side of frame assembly) fuel pressure sensor (mounted to rear frame near the evap canister vent solenoid valve) fuel pump flow control module 5-volt 5v ref1 Batt Chg ind sig Ckp sig Cmp sig Computer data lines system Data bus+ Data bus- Drain wire Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) Eop sig Fuel fuse 18 20a G102 (at left front side of engine block) G300 (on left side body mount, in front of driver door) Ground Ho2s hi b1s1 Ho2s hi b2s1 Ho2s lo b1s1 Ho2s lo b2s1 Hot at all times Ic 1 ctl Ic 2 ctl Ic 3 ctl Ic 4 ctl Ic 5 ctl Ic 6 ctl Ic 7 ctl Ic 8 ctl Ign vol Ignition coil 1 Ignition coil 3 Ignition coil 5 Ignition coil 7 J140 J141 J142 (in ignition coil jumper harness, 5 cm from x111 breakout, between the breakouts for ignition coils 3 & 5) J423 Lo ref Lo reference Low ref Map sig Nca Pnk Pump ctrl Red Rel ctrl Sens sig Ser data Spark plug Starting/charging system Tan Tp sens1 sig Tp sens2 sig Underhood fuse block (at left side of engine compt, near battery)
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Hummer H2 2008 List of elements for Backup Lamps Wiring Diagram for Hummer H2 2008: 24 (not used) Bck/up lamp pcb relay Body control module (bcm) (on lower left side of i/p to the left of steering column) Ctrl x5 G104 (at rear of left cylinder head) G304 (below vehicle on right side middle body mount near second row seating area) Hot at all times Inside rearview mirror (isrvm) J102 J222 (in i/p harness, 5 cm from engine compt pass through) J407 Left backup lamp Left i/p junction block (lower left side of instrument panel to left of steering column) Nca Rearview camera (center of rear bumper above trailer hitch receiver) Right backup lamp Rly Rly ctrl Trailer connector (at rear of vehicle below below rear bumper) Trlr bck/up fuse 8 10a Underhood fuse block (at left side of engine compt, near battery) Veh bck/up fuse 13 10a X10 X11 Exterior Lamps Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Hummer H2 2008: 55 (at left rear of passenger compt near midgate behind trim panel) (at left side of liftgate, near junction of right rear defogger connector to liftgate harness) j900 (in body harness, 15.2 cm from junction of left rear marker lamp to body harness) j411 (in forward lamp harness, 10 cm from horn-right breakout) j108 (in forward lamp harness, 5 cm from horn-left breakout) j107 (not used) (on left front frame body mount) g100 (right front corner of vehicle on frame rail near front tow hook) g101 (sut) (sut) (suv) (suv) 2b2 Center high mounted stop lamp (chmsl) G203 (at lower right side of dash, behind right kick panel) G304 (below vehicle on right side middle body mount near second row seating area) G401 (at left rear frame body mount) G403 g410 (on passenger side rear of body near d-pillar behind trim panel) Hot at all times J100 J101 J303 J395 J405 J407 J901 Left front marker lamp Left front roof clearance lamp Left front roof marker lamp Left i/p junction block (lower left side of instrument panel to left of steering column) Left park/ turn signal lamp Left rear marker lamp Left rear roof clearance lamp Left rear roof marker lamp Left tail/stop & turn signal lamp Left tail/stop lamp License lamp Lt prk fuse 22 15a Middle front roof marker lamp Middle rear roof marker lamp Nca Prk lamp relay Red Right front marker lamp Right front roof clearance lamp Right front roof marker lamp Right i/p junction block (right side of i/p behind x2 end trim panel) Right park/ turn signal lamp Right rear roof clearance lamp Right rear roof marker lamp Rt prk fuse 23 15a Sut Suv Trlr prk fuse 21 15a Underhood fuse block (at left side of engine compt, near battery) X12 Exterior Lamps Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Hummer H2 2008: 66 (not used) 12v ref Auto Bck/up lamp relay Body control module (bcm) (on lower left side of i/p to the left of steering column) Brake sw sig Chmsl ctrl Computer data lines system Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) G304 (below vehicle on right side middle body mount near second row seating area) G401 (at left rear frame body mount) Hazard sw Hazard sw sig Head Headlamp & panel dimmer switch Hot at all times Hot w/ run/crank relay energized Instrument panel cluster (ipc) Interior lights system Ipc fuse 39 10a J217 J219 J225 J358 (in chassis harness, 10 cm from g300 breakout) J405 J406 J407 Left Left i/p junction block (lower left side of instrument panel to left of steering column) Left rear turn signal lamp Left turn ind Left turn sig Logic Misc ign fuse 37 10a Off Park Park lp rly ctrl Park lps sig Pnk Red Right Right rear marker lamp Right rear turn signal lamp Right tail/ stop lamp Right tail/stop & turn signal lamp Right turn ind Right turn sig Ser data Stop lamp switch (on top of brake pedal bracket) Stop lp ctrl Stud 1 trlr fuse 59 40a Stud 2 trlr fuse 55 30a Tan Tcc brake sig Trailer connector (at rear of vehicle below below rear bumper) Transmission control module (tcm) (part of automatic transmission) Trlr bck/up fuse 8 10a Trlr stop lt fuse 1 10a Trlr stop lt pcb relay Trlr stop rt fuse 4 10a Trlr stop rt pcb relay Turn sig lp ctrl Turn signal/ multi-function switch Underhood fuse block (at left side of engine compt, near battery)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Hummer H2 2008 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Hummer H2 2008: 69 (if equipped) windshield washer solvent heater (sut) mid gate window switch A/c compressor clutch A/c low pressure switch Ambient light/ sunload sensor Automatic transmission Back-up lamp pcb relay Battery Body control module (bcm) Brake fluid level switch Cooling fan diode Data link connector (dlc) Driver door lock/ window switch Engine control module (ecm) Fan control relay Front washer diode Frt wash pcb relay G100 (on left front frame body mount) G101 (right front corner of vehicle on frame rail near front tow hook) G102 (at left front side of engine block) G103 (on front of right cylinder head) G104 (at rear of left cylinder head) G106 (on rear of left rear of engine compt, near left cylinder head) G200 (on left side of dash, behind left kick panel) Headlamp & panel dimmer switch Hood ajar switch Hvac control module I/p fuse block (on lower left side of i/p, behind access panel) I/p multifunction switch Ignition coil/ module 1 Ignition coil/ module 2 Ignition coil/ module 3 Ignition coil/ module 4 Ignition coil/ module 5 Ignition coil/ module 6 Ignition coil/ module 7 Ignition coil/ module 8 Instrument panel cluster (ipc) J101 (in forward lamp harness, 5 cm from ambient temperature sensor harness to forward lamp harness at right front of radiator support) Left daytime running lamp (drl) Left front park/turn signal lamp Left headlamp Left horn Left i/p junction block (lower left side of instrument x1 Mass air flow (maf)/ intake air temperature (iat) sensor Nca Panel to left of steering column) Rear defog relay Rear door lock/unlock pcb relay Rear wash pcb relay Rear washer diode Remote control door lock receiver (rcdlr) Right daytime running lamp (drl) Right engine cooling fan Right front park/turn signal lamp Right headlamp Right horn Run/ accy relay Run/ crank relay Starter relay Theft deterrent module (tdm) Transfer case shift control module Turn signal/ multifunction switch Underhood fuse block (at left side of engine compt, near battery) Windshield washer fluid level switch Windshield wiper motor Wiper control pcb relay Wiper high speed diode Wiper low speed diode Ground Distribution Wiring Diagram (2 of 3) for Hummer H2 2008 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Hummer H2 2008: 69 (if equipped) sunroof module (if equipped) sunroof switch 2a7 2nd row courtesy/ reading lamps 4a7 Air suspension control module Automatic transmission shift lock control solenoid Blower motor control module Center console 1 accessory power outlet Center console 2 accessory power outlet Center console compartment lamp switch Clock Data link connector (dlc) Driver information center (dic) switch Driver memory seat module Electronic brake control module (ebcm) Front accessory power outlet Fuel system control module (fscm) G203 (at lower right side of dash, behind right kick panel) G300 (on left side body mount, in front of driver door) G301 (under passenger seat toward right side near x305) G306 (in right "b" pillar behind trim panel) G402 (attached to front of air suspension mounting bracket) Global window switch Horn switch Hvac control module Inflatable restraint passenger air bag on/off indicator Inflatable restraint sensing & diagnostic module (sdm) Inflatable restraint steering wheel module coil Inflatable restraint vehicle rollover sensor Inside air temperature sensor Inside rearview mirror (isrvm) J215 (in i/p harness, 6 cm from hvac control module breakout) J218 (in steering column harness) J225 (in i/p harness, 7.5 cm from window switch - global breakout) J301 (in headliner harness, at top of left "a" pillar near corner of windshield) J303 (in roof-marker harness, 22 cm from right front marker lamp connector) J310 (in body harness, 14 cm from g301 breakout) J321 (in overhead console harness) J351 (in console harness, 28.5 cm from junction of body harness in-line x320 to floor console harness) J355 (in chassis harness, 5 cm from electronic brake control module x2 breakout) J382 Left front roof clearance lamp Left front roof marker lamp Left i/p junction block (lower left side of instrument x2 Left steering wheel control switch Left sunshade Middle front roof marker lamp Nca Onstar button assembly Overhead console courtesy/ reading lamps Panel to left of steering column) Passenger door lock/ window switch Passenger seat adjuster switch Passenger seat lumbar adjuster switch Prndl lamp 1 Prndl lamp 2 Rear heated seat control module Rear window wiper/ washer switch Right front roof clearance lamp Right front roof marker lamp Right i/p junction block (right side of i/p behind end trim panel) Right rear door courtesy lamp Right rear door latch Right rear window switch Right steering wheel control switch Right sunshade Transfer case shift control switch W/ off road suspension chassis package Ground Distribution Wiring Diagram (3 of 3) for Hummer H2 2008 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Hummer H2 2008: 71 (if equipped) digital radio receiver (if equipped) rearview camera (w/ onstar) vehicle communication interface module (vcim) 3rd row courtesy/ reading lamps Air suspension compressor Audio amplifier Auxiliary blower motor control module Cargo accessory power outlet Center high mounted stop lamp (chmsl) Dvd navigation G302 (in left "b" pillar behind trim panel) G304 (below vehicle on right side middle body mount near second row seating area) G401 (at left rear frame body mount) G403 (at left rear of passenger compt near midgate behind trim panel) G405 (at right rear frame body mount) G410 (on passenger side rear of body near d-pillar behind trim panel) Inflator air switch Infrared transmitter Inside rearview mirror (isrvm) J320 (in body harness, at right side of interior, 8.5 cm from right b-pillar courtesy lamp harness junction to body harness) J339 (in midgate harness 5 cm from midgate latch release switch - right breakout) J405 (in chassis harness 13 cm from g405 main harness breakout) J407 (in air chassis harness, 23 cm from data link J407 (in air chassis harness, 23 cm from data link resistor breakout) J410 (in body harness, 10 cm from x900 breakout) J720 (in right rear door harness, 12 cm from junction of speaker connector harness to door harness) J901 (at lower right side of liftgate, 10 cm from junction of rear wiper motor connector to liftgate harness) Left back-up lamp Left door rear courtesy lamp Left i/p junction block (lower left x12 Left liftgate ajar switch Left midgate latch Left midgate latch switch Left rear door latch Left rear marker lamp Left rear roof clearance lamp Left rear roof marker lamp Left rear turn signal lamp Left rear window switch Left tail/ stop lamp Left tail/stop & turn signal lamp License lamp Middle rear roof marker lamp Midgate window motor Nca Radio Rear accessory power outlet Rear seat audio (rsa) control Rear window defogger Rear window defogger grid Rear window wiper control module Right back-up lamp Right liftgate ajar switch Right midgate latch Right midgate latch switch Right rear marker lamp Right rear roof clearance lamp Right rear roof marker lamp Right rear turn signal lamp Right tail/ stop lamp Right tail/stop & turn signal lamp Side of instrument panel to left of steering column) Sut Suv Trailer connector Video display W/ audio & W/ off road suspension chassis package W/ rear a/c W/ rear seat entertainment package W/o audio & dvd navigation
HEADLIGHTS Headlights Wiring Diagram for Hummer H2 2008 List of elements for Headlights Wiring Diagram for Hummer H2 2008: 56 Amb lt sens sig Ambient light/ sunload sensor assembly (on top center of dash) Auto Aux hvac ign fuse 41 10a Body control module (bcm) (on lower left side of i/p to the left Dimmer sw sig Drl fuse 26 10a Drl pcb relay Drl rly ctrl Flash to pass sig Flash to pass switch G100 (on left front frame body mount) G101 (right front corner of vehicle on frame rail near front tow hook) G200 (on left side of dash, behind left kick panel) Gmlan serial data Hdlp lo relay Head Headlamp & panel dimmer switch Headlamp dimmer switch Headlamps off sig Headlamps on sig Hi beam pcb relay Hi beam rly ctrl Hi hdlp lt fuse 27 10a Hi hdlp rt fuse 25 10a High beam ind Hot at all times Hot w/ run/crank relay energized Ign Instrument panel cluster (ipc) J100 J101 J217 J219 Jx205 (below left side of dash, to left of steering column) K2 x1 Left daytime running lamp (drl) Left headlamp Left i/p junction block (lower left side of instrument panel to left of steering column) Lo beam rly ctrl Lo hdlp lt fuse 9 10a Lo hdlp rt fuse 14 10a Logic Of steering column) Off Park Park brake sw sig Park brake switch (part of parking brake assembly) Park lamps sig Pnk Right daytime running lamp (drl) Right headlamp Serial data Turn signal/ multi-function switch Underhood fuse block (at left side of engine compt, near battery) X1 k1
HORN Horn Wiring Diagram for Hummer H2 2008 List of elements for Horn Wiring Diagram for Hummer H2 2008: 21 (at lower right side of dash, behind right kick panel) g203 A x1 B x1 Body control module (on lower left side of i/p to the left of steering column) G100 (on left front frame body mount) G101 (right front corner of vehicle on frame rail near front tow hook) Horn fuse 24 15a Horn pcb relay Horn relay control Horn switch Hot at all times Inflatable restraint steering wheel module coil (on steering column, behind steering wheel) J x2 J100 J101 J218 K x2 Left horn (near radiator core support to left of radiator) Right horn (near radiator core support to right side of radiator) Tan Underhood fuse block (at left side of engine compartment, near battery)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Hummer H2 2008 List of elements for Instrument Cluster Wiring Diagram for Hummer H2 2008: 82 4wd ind 5v ref 1 Abs ind Air bag ind Air bag off ind Air bag on ind Aux hvac ign fuse 41 10a Body control module (bcm) (on lower left side of i/p to the left of steering column) Brake fluid level switch (mounted to lower left side of master cylinder) Brake ind Charging ind Clock Computer data lines system Coolant temperature gauge Cruise ind Dic menu sw Dic sw sig Driver information center Driver information center (dic) switch Ecm ign fuse 47 15a Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) Engine controls system Engine oil level switch (on lower right side of oil pan) Engine oil pressure (eop) sensor (on rear side of engine block behind intake manifold) Engine oil pressure gauge Eop sw sig Fluid level sig Fog lamps ind Fuel gauge Fuel level sens Fuel pump & sender assembly (in fuel tank) G103 (on front of right cylinder head) G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Gnd Hi spd data bus+ Hi spd data bus- High beam ind Hot at all times Hot w/ run/crnk relay energized Ign volt Instrument panel cluster (ipc) Interior lights system Ipc fuse 39 10a J215 J403 (in chassis harness 39 cm from g401 breakout) Left i/p junction block (lower left side of instrument panel to left of steering column) Left turn ind Lo ref Lo serial data Lo spd serial data Lo washer ind Logic Low engine oil pressure ind Low ref Low tire pressure ind Malfunction ind Mil ctrl Nca Oil pressure sens Park brake switch (part of parking brake assembly) Park brk sw sig Persona- lization Pnk Rdo fuse 36 15a Right turn ind Seat belt ind Security ind Set/ reset Speedometer Tachometer Tan Tow/haul ind Transmission fluid temperature gauge Trip/ fuel Trip/ odometer Underhood fuse block (at left side of engine compt, near battery) Vehicle info Voltmeter Vsc ind Warning system Wiper/washer system
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Hummer H2 2008 List of elements for Courtesy Lamps Wiring Diagram for Hummer H2 2008: 56 (on left side of dash, behind left kick panel) g200 (on passenger side rear of body near d-pillar behind trim panel) 2nd row courtesy/ reading lamps 3rd row courtesy/ reading lamps (suv) Ajar sw sig Battery positive volt Bcm fuse 10a Body control module (bcm) (on lower left side of dash, to the left of steering column) Center console compartment lamp Center console compartment lamp switch (floor console components) Computer data lines system Courtesy lp ctrl Dome Driver door courtesy lamp Driver door latch (inside driver door below outside door handle) Driver door lock/ window switch G203 (at lower right side of dash, behind right kick panel) G302 (in left "b" pillar behind trim panel) G306 (in right "b" pillar behind trim panel) G410 Gnd Headlamp & panel dimmer switch Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) Inadvertent pwr ctrl Interior lp def sw sig J217 J221 (in i/p harness, 10 cm from x205 breakout) J300 (in headliner harness, at top of left a-pillar near corner of windshield) J301 J321 J341 (in body harness, 5 cm from inflatable restraint sensing & diagnostic module breakout) J351 J410 J720 J820 Key sw sig Left i/p junction block (lower left side of instrument panel to left of steering column) Left rear door courtesy lamp Left rear door latch assembly (at rear of door) Left sunshade Lp ctrl Lr door ajar sw sig Nca Overhead console courtesy/ reading lamps Passenger door courtesy lamp Passenger door latch assembly (inside passenger door below outside door handle) Passenger door lock/ window switch Reading Right rear door courtesy lamp Right rear door latch assembly (at rear of door) Right sunshade Rr door ajar sw sig Serial data X10 X12 Instrument Illumination Wiring Diagram for Hummer H2 2008 List of elements for Instrument Illumination Wiring Diagram for Hummer H2 2008: 71 (at lower right side of dash, behind right kick panel) g203 (in i/p harness in window switch - global breakout, 10 cm from breakout) j278 (not used) (on lower left side of dash, to the left of steering column) body control module (bcm) (on steering column, behind steering wheel) inflatable restraint steering wheel module coil 12v ref 12v ref x3 Air suspension control module (center rear of vehicle, in front of trailer hitch) Auto Battery positive volt Bcm fuse 10a Clock Computer data lines system Driver information center (dic) switch G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) G302 (in left "b" pillar behind trim panel) G306 (in right "b" pillar behind trim panel) Global window switch Head Headlamp & panel dimmer switch Horn switch Hot at all times Hvac control module I/p fuse block (on lower left side of i/p, behind access panel) I/p multi- function switch If equipped Ind dimming ctrl Instrument panel cluster (ipc) Instrument panel lps J215 J216 J217 J218 J225 J321 J351 J720 J820 K2 x2 Left i/p junction block (lower left side of instrument panel to left of steering column) Left rear window switch Left steering wheel control switch Lk ind ctrl 4 lo ind ctrl 4 hi ind ctrl 4 wd ind ctrl x2 Lo spd gmlan ser data Logic M3 x1 Midgate window switch (sut) Nca Nca ind ctrl Off Park Pnk Prk lp sw sig x2 Prndl lamp Radio Rear window wiper/washer switch Right rear window switch Right steering wheel control switch Serial data Stop lamp switch (on top of brake pedal bracket) Sunroof switch (if equipped) Swc bklt fuse 2a Transfer case shift control module (behind headlight switch) Transfer case shift control switch W/ heated w/s washer W/ offroad suspension chassis package Winshield washer solvent heater (left rear corner of engine compt) X1 p3 X10 X11
MEMORY SYSTEMS Driver"s Memory Seat Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Driver"s Memory Seat Wiring Diagram (1 of 2) for Hummer H2 2008: 37 (in right "b" pillar behind trim panel) g306 (not used) 12v ref B+ volt Computer data lines system Ddm fuse 15a Down Driver seat 2 circuit breaker cb3 25a Driver seat adjuster switch Driver seat lumbar switch Dsm fuse 10a Fwd G200 (on left side of dash, behind left kick panel) Gnd Horz fwd sw sig Horz rwd sw sig Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J312 J382 Left i/p junction block (lower left side of instrument panel to left of steering column) Low ref Lumbar dw sw sig Lumbar fwd sw sig Lumbar rwd sw sig Lumbar up sw sig Memory seat module (msm) (under driver seat) Pnk Recline fwd sw sig Recline rwd sw sig Rwd Seats system Serial data Tan Vert dn sw sig Vert up sw sig X12 Driver"s Memory Seat Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Driver"s Memory Seat Wiring Diagram (2 of 2) for Hummer H2 2008: 44 (in body harness, 5 cm from inflatable restraint sensing & diagnostic module breakout) j341 (in driver seat back, on left) driver seat lumbar horizontal motor (in driver seat back, on right) driver seat lumbar vertical motor (lower right side of driver seat back, below seat back) driver seat recline motor 12v ref 5v ref Back temp sens sig Computer data lines system Cushion element ctrl Cushion temp sig Driver door lock/ window switch Driver memory/ heated seat switch Driver seat adjuster motor assembly (below driver seat mounted to seat track) Driver seat lumbar horizontal motor position sensor (in driver seat back, on left) Driver seat lumbar vertical motor position sensor (in driver seat back, on right) Driver seat recline position sensor (lower right side of driver seat back, below seat back upholstery) Drv back element ctrl Exit Gnd Horz mtr fwd ctrl Horz mtr rwd ctrl Horz mtr sens sig J309 J310 (in body harness, 14 cm from g301 breakout) J340 (in body harness, 10 cm from seat belt pretensioner - driver breakout) tan Lumbar horz sens sig Lumbar mtr dn ctrl Lumbar mtr fwd ctrl Lumbar mtr rwd ctrl Lumbar mtr up ctrl Lumbar vert sens sig Memory seat module (msm) (under driver seat) Memory set sw sig Pass back element ctrl Pnk Recline mtr fwd ctrl Recline mtr rwd ctrl Recline mtr sens sig Seats system Serial data Tan Vert mtr dn ctrl Vert mtr sens sig Vert mtr up ctrl Memory Mirrors Wiring Diagram for Hummer H2 2008 List of elements for Memory Mirrors Wiring Diagram for Hummer H2 2008: 44 (at lower right side of dash, behind right kick panel) g203 (right side of dash behind end trim panel) right i/p junction block 12v ref 4a7 5v ref Computer data lines system Ddm fuse 15a Down Driver door lock/ window switch Driver memory/ heated seat switch Driver outside rearview mirror Electro- chromic mirror Element ctrl Exit Extend G200 (on left side of dash, behind left kick panel) Gnd Horz position ctrl Horz position sens sig Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J501 J502 J601 J602 Left Left select Low ref Mirrors system Mtr common Mtr extend ctrl Mtr retract ctrl Passenger door lock/ window switch Passenger outside rearview mirror Pdm fuse 15a Pnk Retract Right Right select Serial data Sw sig Switch pwr Vert position ctrl Vert position sens sig
NAVIGATION Navigation Wiring Diagram for Hummer H2 2008 List of elements for Navigation Wiring Diagram for Hummer H2 2008: 19 (not used) Audio w/ dvd navigation Coax Computer data lines system Electronic brake control module (ebcm) (left rear of engine compt behind fuse block-underhood to left of brake fluid reservoir) G302 (in left "b" pillar behind trim panel) Gnd Hot at all times J201 Left i/p junction block (lower left side of instrument panel to left of steering column) Lo serial data Navigation antenna Navigation antenna (at top left front of roof) Radio Rdo fuse 36 15a Underhood fuse block (at left side of engine compt, near battery) Vehicle spd sig Vss X12 Rear Camera Wiring Diagram for Hummer H2 2008 List of elements for Rear Camera Wiring Diagram for Hummer H2 2008: 22 Audio w/ dvd navigation Body control module (bcm) (on lower left side of i/p to the left of steering column) Camera vid sig + Computer data lines system Drain wire Exterior lights system G302 (in left "b" pillar behind trim panel) Hot w/ run/ crank relay energized Inside rearview mirror (isrvm) J222 (in i/p harness, 5 cm from engine compt pass through) Lamp rly ctrl Left i/p junction block (lower left side of instrument panel to left of steering column) Lo serial data Misc ign fuse 37 10a Nca Nca lamp rly ctrl nca drain wire nca camera gnd nca camera ctrl nca camera vid sig + nca camera vid sig + Pnk Radio Rearview camera (center of rear bumper above trailer hitch receiver) Sound systems Underhood fuse block (at left side of engine compt, near battery) X12
POWER DISTRIBUTION Power Distribution Wiring Diagram (2 of 4) for Hummer H2 2008 List of elements for Power Distribution Wiring Diagram (2 of 4) for Hummer H2 2008: 93 (at left side of engine compt, near battery) underhood fuse block (in chassis harness, 20 cm from air suspension relay main harness breakout) j356 (in console harness, 16 cm from console bin lamp breakout) j352 (lower left side of dash, to left of steering column) left i/p junction block (not used) (on lower left side of i/p, behind access panel) i/p fuse block A1 x4 A7 x3 Automatic transmission Aux pwr 2 fuse 20a Aux pwr fuse 20a Auxiliary blower motor control module B1 x2 B4 x4 B7 x2 Bcm fuse 10a Body control module (bcm) Cargo accessory power outlet (right rear side of cargo box) Center console 1 accessory power outlet Center console 2 accessory power outlet Center console compartment accessory power outlet Ctsy fuse 15a D1 x1 Ddm fuse 15a Dim fuse 10a Driver door lock/ window switch Driver memory seat module Dseat 2 circuit breaker 25a Dsm fuse 15a Ecm ign fuse 47 15a Electronic brake control module (ebcm) Engine control module (ecm) F5 x3 From c mbec 1 fuse (diagram 1 of 4) From hvac ign fuse (diagram 4 of 4) From lbec 1 fuse (diagram 1 of 4) From lbec 2 fuse (diagram 1 of 4) Fuel system control module (fscm) G203 (at lower right side of dash, behind right kick panel) G405 (at right rear frame body mount) G410 (on passenger side rear of body near d-pillar behind trim panel) Garage door opener (gdo) Info fuse 15a Int lts fuse 10a J31 J410 Left i/p junction block (lower left side of dash to left of steering column) Left rear window switch Left sunshade Lock/unlock pcb relay Lt dr circuit breaker 25a Lt stop turn fuse 15a Mgate circuit breaker 25a Midgate window motor Onstar fuse 10a P5 x2 Passenger door lock/ window switch Passenger seat adjuster switch Passenger seat lumbar adjuster switch Pdm fuse 15a Pnk Pseat 1 circuit breaker 25a Rear accessory power outlet (mounted in the trim panel below right d-pillar) Rear heated seat control module Rear hvac fuse 30a Rear seat fuse 20a Rear window wiper control module Rear wiper fuse 25a Remote control door lock receiver (rcdlr) Right i/p junction block (right side of dash behind end trim panel) Right rear window switch Rt doors circuit breaker 25a Rt stop turn fuse 15a Stop lamp fuse 15a Sut Suv Trans ign 1 fuse 17 15a Ugdo fuse 10a Vehicle communication interface module (vcim) Video display (w/ rear seat entertainment package) W/ onstar X1 3b2 X1 3b4 X1 f1 X1 g2 X1 j2 X10 X11 X12 X2 a4 X2 b5 X3 b2 X3 b4 Power Distribution Wiring Diagram (3 of 4) for Hummer H2 2008 List of elements for Power Distribution Wiring Diagram (3 of 4) for Hummer H2 2008: 49 (at left side of engine compt, near battery) underhood fuse block (in i/p harness in body control module breakout, 5 cm from jx205 breakout) j230 (in ignition coil jumper harness, between ignition coils 4 & 2, 3 cm from ignition coil 4 breakout) j160 (in ignition coil jumper harness, between ignition coils 5 & 7, 3 cm from ignition coil 5 breakout) j140 (in the i/p harness, 5 cm from the x205 breakout) j220 A/c cmprsr relay Automatic transmission shift lever Body control module (bcm) D4 x5 Ecm/throt cntrl fuse 3 15a Eng fuse 2 15a Engine control module (ecm) Evaporative emission (evap) canister vent solenoid valve Fan 1 fuse 50 40a Fan 2 fuse 53 40a Fan cntrl relay Fan hi relay Fan lo relay From o2-b fuse (diagram 3 of 4) From prk lamp relay (diagram 1 of 4) Fuel injector G104 (at rear of left cylinder head) Heated oxygen sensor (ho2s) bank 1 sensor 1 Heated oxygen sensor (ho2s) bank 1 sensor 2 Heated oxygen sensor (ho2s) bank 2 sensor 1 Heated oxygen sensor (ho2s) bank 2 sensor 2 Hvac control module Ignition coil/ module Inj a fuse 20 20a Inj b fuse 11 20a J102 Left i/p junction block (lower left side of dash to left of steering column) Mass air flow (maf) sensor/ intake air temperature (iat) sensor Midgate window motor Midgate window switch Nca O2-a snsr fuse 16 10a O2-b snsr fuse 6 10a Pnk Pwr/trn pcb relay Run/accy fuse 40 10a Run/accy pcb relay Sunroof module Sut To inj-a fuse (diagram 3 of 4) To run/ crnk relay (diagram 4 of 4) W/ heated w/s washer Windshield washer solvent heater X2 n5 Power Distribution Wiring Diagram (4 of 4) for Hummer H2 2008 List of elements for Power Distribution Wiring Diagram (4 of 4) for Hummer H2 2008: 50 & body control module) (at left side of engine compt, near battery) underhood fuse block (in engine harness, 16 cm from engine control module breakout) j130 (in i/p harness, in transfer case control module breakout, 7 cm from breakout) j234 (not used) 5-volt reference Acc Air bag ign fuse 34 10a Aux hvac ign fuse 41 10a Auxiliary air temperature actuator Auxiliary mode actuator Body control module (bcm) Engine control module (ecm) From h dlis fuse diagram 1 of 4) From pwr/trn pcb relay (diagram 3 of 4) G104 (at rear of left cylinder head) Hvac ign fuse 46 10a Ign Ignition switch Inflatable restraint i/p module disable switch Inflatable restraint passenger air bag on/off indicator Inflatable restraint sensing & diagnostic module (sdm) Inside rearview mirror (isrvm) Instrument panel cluster (ipc) J102 J441 Key ignition switch Left air temperature actuator Left i/p junction block (lower left side of dash to left of steering column) Misc ign fuse 37 10a Mode actuator N5 x2 Nca Off Pnk Rearview camera (if equipped) Recirculation actuator Right air temperature actuator Right i/p junction block (right side of dash behind end trim panel) Run Run/crnk relay Seo fuse 45 10a Start Stop lamp switch Theft deterrent module (tdm) To ecm ign fuse (diagram 2 of 4) Transfer case shift control module Transmission control module (tcm) X11 X12
POWER DOOR LOCKS Power Door Locks Wiring Diagram for Hummer H2 2008 List of elements for Power Door Locks Wiring Diagram for Hummer H2 2008: 62 (on lower left side of i/p, behind access panel) i/p fuse block 3b2 3b4 4a7 Ajar sw sig Aux hvac ign fuse 41 10a Batt pos Batter Body control module (bcm) (on lower left side of i/p to the left of steering column) Closed sw sig Coax Computer data lines system Data bus+ Data bus- Ddm fuse 15a Driver door latch (inside driver door below outside door handle) Driver door lock/window switch G103 (on front of right cylinder head) G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Gmlan serial data Ground Hood ajar switch (part of hood latch assembly) Hot at all times Hot w/ run/crank relay energized I/p fuse block (on lower left side of i/p, behind access panel) Ign Info fuse 5a Instrument panel cluster (ipc) J217 Keyless entry antenna Lck 1 fuse 15a Lck 2 fuse 15a Left i/p junction block (lower left side of instrument panel to left of steering column) Left i/p junction block (lower left side x1 Left rear door latch (at left rear of door) Liftgate door lock actuator (at lower center of liftgate) Lock ctrl Lock sw sig Logic Lt dr circuit breaker 25a Nca Of instrument panel to left of steering column) Passenger door latch (inside passenger door below outside door handle) Passenger door lock/window switch Pdm fuse 15a Pnk Rear door lock/unlock pcb relay Remote control door lock receiver (rcdlr) (center of instrument panel below trim panel to left of clock) 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 cb2 25a Security ind Serial data Suv Tan Underhood fuse block (at left side of engine compt, near battery) Unlck 1 fuse 15a Unlck 2 fuse 15a Unlock control Unlock ctrl Volt
POWER MIRRORS Power Mirrors Wiring Diagram for Hummer H2 2008 List of elements for Power Mirrors Wiring Diagram for Hummer H2 2008: 35 Automatic day/night mirror sig Aux hvac-ign fuse 41 10a Backup lamp rly ctrl Body control module (bcm) (on lower left side of i/p to the left of steering column) Computer data lines system Drain Driver door lock/ window switch Driver outside rearview mirror Electrochromic mirror Exterior lights system G203 (at lower right side of dash, behind right kick panel) Ground High speed ser data bus+ 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) J222 (in i/p harness, 5 cm from engine compt pass through) J301 Left i/p junction block (lower left side of instrument panel to left of steering column) Logic Low ref Navigation system Nca Outside air temp display Outside air temperature sensor (at right front of vehicle, to right of radiator support) Outside air temperature sig Pnk Power distribution system Tan Underhood fuse block (at left side of engine compt, near battery) Video+ Video- X10
POWER SEATS Front Heated Seats Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Front Heated Seats Wiring Diagram (1 of 2) for Hummer H2 2008: 26 Computer data lines system Cushion element ctrl Ddm fuse 15a Driver back heated seat element (under driver seat back upholstery) Driver cushion heated seat element (in driver seat cushion) Dsm fuse 10a G306 (in right "b" pillar behind trim panel) Gnd Gnd x3 Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J311 J316 J382 Low ref Low spd serial data Memory seat module (under driver seat) Nca Passenger back heated seat element (under passenger seat back upholstery) Passenger cushion heated seat element (in passenger seat cushion) Pdm fuse 15a Pnk Seat back element ctrl Seat back temp sig Seat cushion temp sig Tan Front Heated Seats Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Front Heated Seats Wiring Diagram (2 of 2) for Hummer H2 2008: 35 (on lower left side of i/p, behind access panel) i/p fuse block (right side of i/p behind end trim panel) right i/p junction block 3b2 4a7 Computer data lines system Cushion ind Driver door lock/ window switch Driver memory/ heated seat switch G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Gnd Heated back ind Heated back switch Heated back/ Heated back/ cushion ind Heated back/ cushion switch Hi temp ind ctrl High temp ind Htd seat sw dimming ctrl Low ref Low speed serial data Low temp ind Low temp ind ctrl Med temp ind ctrl Medium temp ind Memory sw dim ctrl Mid temp ind ctrl Passenger door lock/window switch Passenger heated seat switch Pnk Seat back ind ctrl Seat back sw sig Seat back/cushion ind ctrl Seat back/cushion sw sig Tan Passenger Power Seat Wiring Diagram for Hummer H2 2008 List of elements for Passenger Power Seat Wiring Diagram for Hummer H2 2008: 18 Down Fwd G306 (in right "b" pillar behind trim panel) Hot at all times J380 J381 Left i/p junction block (lower left side of dash to left of steering column) Nca Pass seat 1 circuit breaker cb2 25a Passenger seat adjuster motor assembly (below passenger seat mounted to seat track) Passenger seat adjuster switch Passenger seat front vertical motor Passenger seat horizontal motor Passenger seat rear vertical motor Passenger seat recline motor (lower right side of passenger seat back, below seat back upholstery) Rwd Tan X11 Passenger"s Lumbar Wiring Diagram for Hummer H2 2008 List of elements for Passenger"s Lumbar Wiring Diagram for Hummer H2 2008: 14 Down Fwd G306 (in right "b" pillar behind trim panel) Hot at all times J380 J381 Left i/p junction block (lower left side of dash to left of steering column) Pass seat 1 circuit breaker cb2 25a Passenger seat lumbar horizontal motor (in passenger seat back, on right) Passenger seat lumbar switch Passenger seat lumbar vertical motor (in passenger seat back, on left) Pnk Rwd X11 Rear Heated Seats Wiring Diagram for Hummer H2 2008 List of elements for Rear Heated Seats Wiring Diagram for Hummer H2 2008: 22 Back ind Back switch Back/ cushion ind Back/ cushion switch Computer data lines system Element ctrl G306 (in right "b" pillar behind trim panel) Gnd Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J393 Left rear cushion heated seat element (under right rear seat cushion upholstery) Logic Low ref Nca Pnk Rear heated seat control module (under front of left rear second row seat) Rear seat audio (rsa) control Rear seat fuse 20a Right rear cushion heated seat element (under left rear seat cushion upholstery) Sens sig Serial data
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Hummer H2 2008 List of elements for Power Top/Sunroof Wiring Diagram for Hummer H2 2008: 21 (at lower right side of dash, behind right kick panel) g203 Batt positive volt G203 (at lower right side of dash, behind right kick panel) Ground Hot at all times Hot w/ run/ accy pcb relay energized Ignition voltage Interior lights system J215 J220 J321 Left i/p junction block (lower left side of x8 instrument panel to left of steering column) Logic Run/accy fuse 40 10a S/roof fuse 28 30a Sunroof actuator motor Sunroof module (in front of headliner, near front overhead console) Sunroof sw close Sunroof sw open Sunroof switch Underhood fuse block (at left side of engine compartment, near battery)
POWER WINDOWS Power Windows Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Power Windows Wiring Diagram (1 of 2) for Hummer H2 2008: 46 12v ref 3b4 4a7 Battery Class 2 data Computer data lines system Down Down ctrl Down input Down sig Driver door lock/window switch Driver window motor (in driver door) Driver window switch Drivers window switch Front pass window switch Front passenger window switch G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Global window switch Ground Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) I/p fuse block (on lower x1 left side of i/p, behind access panel) Interior lights system Left i/p junction block (lower left side of instrument panel to left of steering column) x11 Left rear window switch Lockout indicator Lockout switch Logic Lt dr circuit breaker 25a Mtr up sig Passenger door lock/window switch Passenger window motor (in front passenger door) Right i/p junction block (right side of i/p behind end trim panel) Right i/p junction block x1 (right side of i/p behind end trim panel) Right rear window switch Rt doors circuit breaker 1 25a Serial data Sw signal Switch power Switch pwr Up ctrl Up input Up sw sig Window dn Window up Power Windows Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Power Windows Wiring Diagram (2 of 2) for Hummer H2 2008: 47 (in body harness, 10 cm from seat belt pretensioner- driver breakout) j340 (not used) Body control module (bcm) (on lower left side of i/p to the left of steering column) Computer data lines system Down Down signal G200 (on left side of dash, behind left kick panel) G302 (in left "b" pillar behind trim panel) G306 (in right "b" pillar behind trim panel) G403 (at left rear of passenger compt near midgate behind trim panel) Ground Hot at all times Hot w/ run/accy relay energized Ign Interior lights system J217 J220 J334 J339 J720 J820 Left i/p junction block (lower left side of instrument panel to left of steering column) Left rear window motor (in left rear door) Left rear window switch Lockout sig Logic Lr down sig Lr up sig Mdgte sw dn Mdgte sw up Mgate circuit breaker 25a Midgate window motor (inside midgate on left side) Midgate window switch Motor down control Motor up control 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 10a Serial data Sw lckout sig Tan Underhood fuse block (at left side of engine compt, near battery) Up signal X12
RADIO Radio Wiring Diagram, with Surround Amplifier (1 of 2) for Hummer H2 2008 List of elements for Radio Wiring Diagram, with Surround Amplifier (1 of 2) for Hummer H2 2008: 78 (lower left side of (or 5149) (or 5152) (or pnk) (or) voice sig Aud prompt sig + Aud prompt sig - Audio w/ dvd navigation Aux aud l sig Aux aud r sig Aux vid hi sig Bare Camera vid sig + Cell voice sig Cellular & navigation antenna (at top left front of roof) Cellular telephone microphone (lf headliner, driver side) Coax Computer data lines system Dash to left of steering column) Drain wire Dvd aud common Dvd vid sig + Dvd vid sig - Electronic brake control module (ebcm) (left rear of engine compt behind fuse block-underhood to left of brake fluid reservoir) G302 (in left "b" pillar behind trim panel) Gnd Gnd (or) lo ref Hot at all times Infrared ctrl Interior lights system J201 L aud sig L dvd aud sig + Left i/p junction block Lf lo aud sig + Lf lo aud sig - Lo level aud + Lo level aud - Lo spd data Lo spd serial data Low ref Lr lo aud sig + Lr lo aud sig - Microphone sig Navigation antenna Navigation system Pnk R aud sig R dvd aud sig + R infrared aud sig Radio Radio antenna Radio antenna (at right front of vehicle) Radio audio out - Radio l aud sig Radio r aud sig Rdo fuse 36 15a Rear seat audio (rsa) controller (at rear of center console) Rf lo aud sig + Rf lo aud sig - Rr lo aud sig + Rr lo aud sig - Satellite radio circuit Sig Tan Tele voice sig Underhood fuse block (at left side of engine compt, near battery) Veh sig Vehicle communication interface module (vcim) (at center of dash, below hvac control module) Vehicle spd sig Vid bright sig Vid mode sig Video display circuit W/ onstar W/o onstar Woofer lo aud + Woofer lo aud - X12 Radio Wiring Diagram, with Surround Amplifier (2 of 2) for Hummer H2 2008 List of elements for Radio Wiring Diagram, with Surround Amplifier (2 of 2) for Hummer H2 2008: 78 (in i/p harness in x298 breakout, 14 cm from breakout) j232 (in i/p harness in x298 breakout, 9 cm from breakout) j233 (in i/p harness, in fuse block- i/p x1 breakout, 24 cm from fuse block-i/p x1) j204 (in i/p harness, in fuse block- i/p x1 breakout, 29 cm from fuse block i/p x1) j203 (in left "b" pillar behind trim panel) g302 (in steering wheel harness between right & left steering wheel control switches) (on steering column, behind steering wheel) inflatable restraint steering wheel module coil 12v ref 3a1 3a2 A bare Amp fuse 35 30a Aud prmt sig - Aud prompt sig + Audio amplifier (under front floor console, between front seats) Bare Body control module (bcm) (on lower left side of i/p to the left of steering column) Cen lo aud + Cen lo aud - Cen spk out + Cen spk out - Center i/p speaker Computer data lines system Cruise control system Drain wire Gnd Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J235 L or rear woofer out + L woofer out - Left d pillar speaker (suv) Left front speaker Left front tweeter speaker Left rear speaker Lf lo aud sig + Lf lo aud sig - Lf spk out + Lf spk out - Lo serial data Lr lo aud sig + Lr lo aud sig - Lr spk out + Lr spk out - Nca Nca noise sig nca drain wire Next Noise comp sig Noise compensation microphone Pnk R woofer out + R woofer out - Rf lo aud sig + Rf lo aud sig - Rf spk out + Rf spk out - Right d pillar speaker (suv) Right front speaker Right front tweeter speaker Right i/p junction block (right side of dash, behind end trim panel) Right rear speaker Right steering wheel control switch Rr lo aud sig + Rr lo aud sig - Rr spk out + Rr spk out - Seek Source Steering sig Subwoofer speaker Tan Tion enable communica- Underhood fuse block (at left side of engine compt, near battery) Voice rec Vol down Vol up Woofer lo aud + Woofer lo aud - Radio Wiring Diagram, without Surround Amplifier (1 of 2) for Hummer H2 2008 List of elements for Radio Wiring Diagram, without Surround Amplifier (1 of 2) for Hummer H2 2008: 72 (or 5149) (or 5152) (or pnk) (or) voice sig Amplifier ctrl Audio w/ dvd navigation Aux aud l sig Aux aud r sig Aux vid hi sig Bare Camera vid sig + Cell voice sig Cellular & navigation antenna (at top left front of roof) Cellular telephone microphone (lf headliner, driver side) Coax Computer data lines system Drain wire Dvd aud common Dvd vid sig + Dvd vid sig - Electronic brake control module (ebcm) (left rear of engine compt behind fuse block-underhood to left of brake fluid reservoir) G302 (in left "b" pillar behind trim panel) Gnd Hot at all times Infrared ctrl Interior lights system J201 L aud sig L dvd aud sig + Left i/p junction block (lower left side of dash to left of steering column) Lf lo aud sig + Lf lo aud sig - Lo ref (or) gnd Lo spd data Lo spd serial data Low ref Lr lo aud sig + Lr lo aud sig - Microphone sig Navigation antenna Navigation system Pnk R aud sig R dvd aud sig + R infrared aud sig Radio Radio antenna Radio antenna (at right front of vehicle) Radio audio out - Radio l aud sig Radio r aud sig Rdo fuse 36 15a Rear seat audio (rsa) controller (at rear of center console) Remote enable Rf lo aud sig + Rf lo aud sig - Rr lo aud sig + Rr lo aud sig - Satellite radio circuit Sig Tan Tele voice sig Underhood fuse block (at left side of engine compt, near battery) Vehicle communication interface module (vcim) (at center of dash, below hvac control module) Vehicle spd sig Vid bright sig Vid mode sig Video display circuit Vss W/ onstar W/o onstar X12 Radio Wiring Diagram, without Surround Amplifier (2 of 2) for Hummer H2 2008 List of elements for Radio Wiring Diagram, without Surround Amplifier (2 of 2) for Hummer H2 2008: 72 (in body harness 12 cm from marker lamp- left rear breakout) j332 (in body harness, 15 cm from marker lamp-left rear breakout) j333 (in i/p harness in x298 breakout, 14 cm from breakout) (in i/p harness in x298 breakout, 9 cm from breakout) j233 (in i/p harness, in fuse block -i/p x1 breakout, 24 cm from fuse block-i/p x1) j204 (in left "b" pillar behind trim panel) g302 (in steering wheel harness between right & left steering wheel control switches) (on steering column, behind steering wheel) inflatable restraint steering wheel module coil 12v ref 3a1 3a2 Amp fuse 35 30a Amplifier ctrl Audio amplifier (under front floor console, between front seats) Body control module (bcm) (on lower left side of i/p to the left of steering column) Cen spk out + Cen spk out - Center i/p speaker Communica- tion enable Computer data lines system Cruise control system Gnd Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J203 (in i/p harness, in fuse block -i/p x1 breakout, 29 cm from fuse block i/p x1) J232 J235 L or rear woofer out + L woofer out - Left d pillar speaker (suv) Left front speaker Left front tweeter speaker Left rear speaker Lf lo aud sig + Lf lo aud sig - Lf spk out + Lf spk out - Lr lo aud sig + Lr lo aud sig - Lr spk out + Lr spk out - Nca Next Piller aud sig + Piller aud sig - Pnk R woofer out + R woofer out - Remote enable Rf lo aud sig + Rf lo aud sig - Rf spk out + Rf spk out - Right d pillar speaker (suv) Right front speaker Right front tweeter speaker Right i/p junction block (right side of dash, behind end trim panel) Right rear speaker Right steering wheel control switch Rr lo aud sig + Rr lo aud sig - Rr spk out + Rr spk out - Seek Source Steering sig Subwoofer speaker Tan Underhood fuse block (at left side of engine compt, near battery) Voice rec Vol down Vol up Satellite Radio Wiring Diagram for Hummer H2 2008 List of elements for Satellite Radio Wiring Diagram for Hummer H2 2008: 22 (lower left side of dash to left of steering column) left i/p junction block Aud out - Bare Cellular, navigation & digital radio antenna (at top left front of roof) Coax Computer data lines system Digital radio receiver (behind glove box) Drain wire G302 (in left "b" pillar behind trim panel) Gnd Hot at all times J204 L aud sig Lo spd data Lt aud sig+ Navi antenna R aud sig Radio Rdo fuse 36 15a Rt aud sig+ Underhood fuse block (at left side of engine compt, near battery) X12 Video Display Wiring Diagram for Hummer H2 2008 List of elements for Video Display Wiring Diagram for Hummer H2 2008: 39 Audio amplifier (under front floor console, between front seats) Audio video adapter (rear of center console below rear seat audio control) Auxiliary aud l sig Auxiliary aud r sig Auxiliary vid hi sig Bare Computer data lines system Drain wire Dvd aud common Dvd vid sig + Dvd vid sig - G302 (in left "b" pillar behind trim panel) Gnd Hot at all times Info fuse 5a Infrared ctrl Infrared module ctrl Infrared transmitter (in roof-mounted dvd system) J206 L aud sig L dvd aud sig + L infrared aud sig Left i/p junction block (lower left side of instrument panel to left of steering column) Lo spd serial data Low ref Nca Pnk R aud sig R dvd aud sig + R infrared aud sig Radio Rear seat audio (rsa) controller (at rear of center console) Remote enable Underhood fuse block (at left side of engine compt, near battery) Vid bright sig Vid mode sig Video display (in headliner between front & second row seating) Video mode sig X12
SHIFT INTERLOCK Ignition Lock Solenoid Wiring Diagram for Hummer H2 2008 List of elements for Ignition Lock Solenoid Wiring Diagram for Hummer H2 2008: 9 Automatic transmission shift lever G203 (at lower right side of dash, behind right kick panel) Hot w/ run/accy pcb relay energized Ignition lock cylinder control solenoid (in upper steering column on ignition key cylinder) J218 J220 Park switch Run/accy fuse 40 10a Underhood fuse block (at left side of engine compt, near battery) Shift Interlock Wiring Diagram for Hummer H2 2008 List of elements for Shift Interlock Wiring Diagram for Hummer H2 2008: 18 A/t shift lck ctrl x2 Automatic transmission shift lever Automatic transmission shift lever control solenoid Bcm fuse 10a Body control module (bcm) (on lower left side of i/p to the left of steering column) E (not used) Exterior lights system G203 (at lower right side of dash, behind right kick panel) Hot at all times Hot w/ run/crank relay energized J351 Left i/p junction block (lower left side of instrument x1 panel to left of steering column) Misc ign fuse 37 10a Pnk Shift lock relay Stop lamp switch (on top of brake pedal bracket) Tcc brake sig x5 Underhood fuse block (at left side of engine compt, near battery)
STARTING/CHARGING Charging Wiring Diagram for Hummer H2 2008 List of elements for Charging Wiring Diagram for Hummer H2 2008: 34 200a Aux hvac ign fuse 41 10a Battery Battery cable junction block (part of positive battery cable assembly) Body control module (bcm) (on lower left side of i/p to the left of steering column) Bus+ Bus- Charge ind Chg ind Computer data lines system Driver information center (dic) Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) G100 (on left front frame body mount) G102 (at left front side of engine block) G103 (on front of right cylinder head) Gen sig Generator Gmlan Gnd Hot at all times Hot w/ run/ crank relay energized Instrument panel cluster (ipc) Ipc fuse 10a Logic Low ref Mega fuse Pnk Power distribution system Red Sens sig Starter Tan Underhood fuse block (at left side of engine compt, near battery) Volt Starting Wiring Diagram for Hummer H2 2008 List of elements for Starting Wiring Diagram for Hummer H2 2008: 30 5-volt reference Automatic transmission Battery Battery cable junction block (part of positive battery cable assembly) Body control module (bcm) (on lower left side of i/p to the left of steering column) Computer data lines system Control solenoid valve assembly Data bus+ Data bus- Engine control module (ecm) (left front of engine compt below battery and fuse block underhood) G100 (on left front frame body mount) G102 (at left front side of engine block) G104 (at rear of left cylinder head) Ignition iii voltage Ignition switch Internal mode switch (ims) J102 Off P/n Park/ neutral signal Red Run acc Start Starter Starter enable relay ctrl Strtr fuse 54 40a Strtr relay Tan Underhood fuse block (at left side of engine compt, near battery) X2 f1
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Hummer H2 2008: 59 (under passenger seat toward right side near x305) g301 Air bag batt fuse 38 15a Air bag ign fuse 34 10a Aux- hvac-ign fuse 41 10a Computer data lines system Discriminating sens sig Driver seat belt buckle Driver seat belt pretensioner (part of driver seat belt retractor assembly) Driver seat belt switch G301 (under passenger seat toward right side near x305) Ground Hot at all times Hot in on or start I/p mod disable sw sig I/p mod hi ctrl I/p mod lo ctrl I/p mod supp ind ctrl Ign Inflatable restraint i/p module disable switch Inflatable restraint sensing & diagnostic module (sdm) (under left front seat) Inflatable restraint vehicle rollover sensor (below center console in front of audio amplifier) L impact sensing mod sig L roof rail mod hi ctrl L roof rail mod lo ctrl L seat belt hi ctrl L seat belt lo ctrl L seat belt sw Left front inflatable restraint roof rail module (behind left side of headliner trim to rear of c-pillar) Left i/p junction block (lower left side of instrument panel to left of steering column) Left rear inflatable restraint roof rail module (w/ suburban/ utility rear seat) (behind left side of headliner trim above quarter window) Low reference Low speed gmlan Lr impact sensing mod sig Lr roof rail mod hi ctrl Lr roof rail mod lo ctrl Nca Passenger seat belt pretensioner (part of passenger seat belt retractor assembly) Pin shorting bars engaged when module connector is disconnected from harness (shorting bars are connected between pins: 8-9,10-11,12-13,14-15, 16-17,18-19,20-21 & 22-23) Pnk Pnk a Pnk b R discriminating sens sig R impact sensing mod sig R roof rail mod hi ctrl R roof rail mod lo ctrl R seat belt hi ctrl R seat belt lo ctrl Right front inflatable restraint roof rail module (behind right side of headliner trim to rear of c-pillar) Right rear inflatable restraint roof rail module (w/ suburban/ utility rear seat) (behind right side of headliner trim above quarter window) Roll over sens hi sig Rr impact sensing mod sig Rr roof rail mod hi ctrl Rr roof rail mod lo ctrl Shorting bar Str whl mod hi ctrl Str whl mod lo ctrl Tan Underhood fuse block (at left side of engine compt, near battery) X11 Supplemental Restraints Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Hummer H2 2008: 25 (bottom of radiator core support on left side) left inflatable restraint front end sensor (bottom of radiator core support on right side) right inflatable restraint front end sensor Air bag ind Air bag off ind Air bag on ind Computer data lines system G200 (on left side of dash, behind left kick panel) G203 (at lower right side of dash, behind right kick panel) Illum Inflatable restraint i/p module (right side of i/p directly in front of passenger seat) Inflatable restraint passenger air bag on/off indicator Inflatable restraint steering wheel module (under horn pad) Inflatable restraint steering wheel module coil (on steering column, behind steering wheel) Instrument panel cluster (ipc) J321 Left front inflatable restraint side impact sensor (sis) (inside driver door) Left i/p junction block (lower left side of instrument panel to left of steering column) Left rear inflatable restraint side impact sensor (sis) (inside left rear door) Logic Pnk Right front inflatable restraint side impact sensor (sis) (inside passenger door) Right rear inflatable restraint side impact sensor (sis) (inside right rear door) Seat belt ind Shorting bar Tan
TRANSMISSION A/T Wiring Diagram (1 of 2) for Hummer H2 2008 List of elements for A/T Wiring Diagram (1 of 2) for Hummer H2 2008: 66 (10 cm from junction of fuel injector 3 harness to engine harness) j103 (on front of right cylinder head) g103 (on lower left side of i/p to the left of steering column) body control module (bcm) Acc Accy wakeup serial data Automatic transmission Aux hvac- ign fuse 41 10a Batt + Brake switch sig Computer data lines system Control solenoid valve assembly Driver information center (dic) Engine control module (ecm) (left front of engine compt below battery & fuse block underhood) Exterior lights system Gmlan data bus+ Gmlan data bus- Gnd High spd ser data bus + High spd ser data bus - Hot at all times Hot w/ run/crnk relay energized Ign voltage Ignition switch Ignition voltage Instrument cluster panel (ipc) J130 (in engine harness, 16 cm from engine control module breakout) J213 (in steering column harness, between ignition switch & body control module) Left i/p junction block (lower left side of dash to left of steering column) Lock Logic Low reference Misc ign fuse 37 10a Park/neutral sig 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 Power distribution system Pressure control (pc) solenoid valve 1 Pressure control (pc) solenoid valve 2 Pressure control (pc) solenoid valve 3 Pressure control (pc) solenoid valve 4 Pressure control (pc) solenoid valve 5 Run Shift solenoid (ss) 1 control Shift solenoid (ss) 2 control Shift solenoid (ss) valve 1 Shift solenoid (ss) valve 2 Start Stop lamp switch (on top of brake pedal bracket) Tan Tcm-batt fuse 12 15a To internal mode switch (diagram 2 of 2) Torque converter clutch (tcc) pressure control (pc) solenoid valve Torque converter clutch pressure control solenoid control Tow/ haul ind Trans ign1 fuse 17 15a 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) Vss high signal Vss low signal A/T Wiring Diagram (2 of 2) for Hummer H2 2008 List of elements for A/T Wiring Diagram (2 of 2) for Hummer H2 2008: 40 (diagram 1 of 2) (in steering wheel harness between right & left steering wheel control switches) j235 12-vol ref Automatic transmission Automatic transmission fluid pressure (tfp) manual valve position switch Body control module (bcm) (on lower left side of i/p to the left of steering column) Computer data lines system Control solenoid valve assembly From automatic transmission a Ftp switch 1 voltage Ftp switch 3 voltage Ftp switch 4 voltage Ftp switch 5 voltage G200 (on left side of dash, behind left kick panel) Gmlan serial data bus + Gmlan serial data bus - I/p multi-function switch Inflatable restraint steering wheel module coil x2 (under horn pad) Input speed sensor (iss) Input speed sensor (oss) signal Internal mode switch J127 J217 Left steering wheel control switch Output speed sensor (oss) Output speed sensor (oss) signal P/n Pnk Red Sound systems Tan Tap up/ tap down sw sig Tow/haul switch Tow/haul switch signal Transmission control module (tcm) Transmission range switch sig a Transmission range switch sig b Transmission range switch sig c Transmission range switch sig p Vehicle speed sensor (vss) (on rear of transfer case assembly above output shaft) Transfer Case Wiring Diagram for Hummer H2 2008 List of elements for Transfer Case Wiring Diagram for Hummer H2 2008: 69 (on lower left side of i/p to the left of steering column) body control module (bcm) 4 hi 4 hi ind control 4 hi lock 4 lo ind control 4 lo lock 4 wd ind control 4-hi ind 4-hi lock ind 4-lo lock ind 4wd ind 5-volt reference Acc Aux hvac- ign fuse 41 10a Battery positive vol Body control module (bcm) (on lower left side of i/p to the left of steering column) Channel a encoder sig Channel b encoder sig Channel c encoder sig Channel p encoder sig Computer data lines system Diff lock ind ctrl Diff lock sw sig Differential lock actuator (on rear axle at top of differential housing) Differential lock ind Differential lock switch Driver information center (dic) G104 (at rear of left cylinder head) Ground Hot at all times Hot w/ run/crank relay energized Hot w/ run/crnk relay energized I/p multi-function switch Ignition switch Ignition voltage Instrument panel cluster (ipc) Interior lights system J102 J231 (w/ rear window intermittent wiper) (in i/p harness, 5 cm from transfer case control module breakout) J234 (in i/p harness, in transfer case control module breakout, 7 cm from breakout) Left i/p junction block (lower left side of dash to left of steering column) Lock Lock actuator ctrl Logic Low reference Misc ign fuse 37 10a Motor control a Motor control b Nca Neutral Neutral ind Neutral ind ctrl Pnk Power distribution system Rear wiper/ washer sw x5 Run Serial data bus+ Serial data bus- Start Switch signal Tan 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 30a Underhood fuse block (at left side of engine compt, near battery) Wakeup serial data Wiper/washer system X5 f1
TRUNK, TAILGATE, FUEL DOOR Midgate Wiring Diagram for Hummer H2 2008 List of elements for Midgate Wiring Diagram for Hummer H2 2008: 46 (at lower right side of liftgate, 6.5 cm from right liftgate ajar switch junction to liftgate harness) (in midgate harness 13 cm from midgate latch -- left breakout) j335 (in midgate harness, 13 cm from left midgate latch breakout) j336 (inside right side of midgate behind midgate trim panel) (on lower left side of i/p to the left of steering column) body control module (bcm) (on passenger side rear of body near d-pillar behind trim panel) g410 Ajar ind sig Ajar sw sig 1 Batt Computer data lines system D4 x5 Defog element ctrl Defogger system G403 (at left rear of passenger compt near midgate behind trim panel) Gnd Hot at all times Hot w/ run/accy pcb relay energized Ignition voltage J220 J334 J339 J901 J902 Latch rel ctrl Latch rel sw sig Left i/p junction block (lower left side of instrument panel to left of steering column) Left liftgate ajar switch (at lower left side of liftgate) Left midgate latch (inside left side of midgate behind midgate trim panel) Left midgate latch switch (in midgate near left latch assembly) Low spd gmlan serial data Mgate circuit breaker 25a Midgate sw dn sig Midgate sw up sig Midgate window motor (sut) (inside midgate on left side) Motor up sig Power windows system Right liftgate ajar switch (at lower right side of liftgate) Right midgate latch Right midgate latch switch (in midgate near right latch assembly) Run/accy fuse 40 10a Sut Suv Tan Underhood fuse block (at left side of engine compt, near battery) Wiper/washer system X12
WARNING SYSTEMS Warning Systems Wiring Diagram for Hummer H2 2008 List of elements for Warning Systems Wiring Diagram for Hummer H2 2008: 47 (on left side of dash, behind left kick panel) g200 Auto Body control module (bcm) (on lower left side of i/p to the left of steering column) Brake fluid level switch (mounted to lower left side of master cylinder) Brake lvl sig Computer data lines system Dlis fuse 29 2a Driver door latch assembly (inside driver door below outside door handle) Driver door lock/ window switch Driver seat belt buckle Driver seat belt switch Drv door key sw G200 (on left side of dash, behind left kick panel) Gnd Head Headlamp & panel dimmer switch Headlamps off sig Headlamps on sig 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 10a J212 J217 Key-in ignition switch L seat belt sw Left i/p junction block Lf door ajar sw Lo gmlan ser data Logic Low reference Nca Off Park Park brake switch (part of parking brake assembly) Park brk sw sig Park lamps sig Pnk Radio Seat belt ind Serial data Serial data x1 Tire pressure ind Underhood fuse block (at left side of engine compt, near battery)
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Hummer H2 2008 List of elements for Front Wiper/Washer Wiring Diagram for Hummer H2 2008: 42 Bat pos volt Body control module (bcm) (on lower left side of dash, to left side of steering column) Computer data lines system G101 (right front corner of vehicle on frame rail near front tow hook) G104 (at rear of left cylinder head) Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) Instrument panel cluster (ipc) Int J101 J102 J296 (in steering column harness) K1 x5 Logic Low ref Low spd gmlan serial data Low washer fluid ind ctrl Mist Mtr park sw sig N5 x2 Nca Off Pnk Rt stop turn fuse 15a Tan Turn signal/ multi-function switch Underhood fuse block (at left side of engine compt, near battery) W/ heated windshield washer fluid Washer sw sig Washer switch Windshield washer fluid level switch (left front corner of engine compt mounted in bottom of windshield washer fluid reservoir) Windshield washer solvent heater (left rear corner of engine compt) Windshield wiper motor (under windshield cowl between wiper arms) Wiper control pcb relay Wiper high speed diode Wiper low speed diode Wiper speed pcb relay Wiper sw hi sig Wiper sw lo sig Wiper sw sig 2 Wiper switch Wpr fuse 30 25a Heated Windshield Washer Wiring Diagram for Hummer H2 2008 List of elements for Heated Windshield Washer Wiring Diagram for Hummer H2 2008: 23 (right front corner of vehicle on frame rail near front tow hook) g101 Body control module (bcm) (on lower left side dash, to left of steering column) Front wiper/ washer circuit G200 (on left side of dash, behind left kick panel) Headlamp & panel dimmer switch Hot at all times Ign volt Interior lights system J217 J230 Nca Nca bat pos volt Nca gnd Nca ignition volt Nca sw indicator ctrl Nca wsh fld htd ctrl sw Nca wsh sw sig Pnk Underhood fuse block (at left side of engine compt, near battery) Washer fluid heated control switch Windshield washer solvent heater (left rear corner of engine compt) Windshield washer solvent heater switch indicator Wsw/htr fuse 57 60a Rear Wiper/Washer Wiring Diagram for Hummer H2 2008 List of elements for Rear Wiper/Washer Wiring Diagram for Hummer H2 2008: 36 (in i/p harness, 5 cm from transfer case control module breakout) (w/ rear window intermittent wiper system) j231 (on passenger side rear of body near d-pillar behind trim panel) g410 A battery positive voltage Ajar ind signal Body control module (bcm) (on lower left side of dash, to left of steering column) E4 x1 Front washer diode Frt wash Frt wsw fuse 5 15a G104 (at rear of left cylinder head) Ground Hot at all times I/p fuse block (on lower left side of i/p, behind access panel) J102 J901 Midgate or liftgate f N5 x2 Pcb relay Rear wash Rear washer diode Rear window c Rear window e Rear window wiper motor (at center of liftgate) Rear window wiper/washer switch Rear wiper fuse 25a Rear wiper/washer Rear wsw fuse 19 15a Sw ctrl x5 Transfer case shift control switch Trunk, tailgate, fuel doors system Underhood fuse block (at left side of engine compt, near battery) Wash Washer rly ctrl Windshield washer fluid pump (in washer fluid reservoir) Wiper sw sig 1 Wiper sw signal
