Diagram sections — 29 (65 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Automatic A/C Wiring Diagram (1 of 2) for Hummer H2 2003: 83 5v ref A/c comp cl rly ctrl A/c comp fuse 10a A/c compressor clutch A/c compressor clutch relay A/c low pressure switch (right side of accumulator) A/c on A/c recirc A/c ref pre sens sig A/c refrigerant pressure sensor (in rear of a/c compressor) A10 A11 A12 A5 c1 Amb air temp sig Ambient air temperature sensor (right of radiator support) B c5 B(+) B10 B11 B12 Blower fuse 40a Blower motor (on hvac assembly) Blower motor control processor (behind right side of dash) Blower speed ctrl C4 e Class 2 ser data Class 2 serial data D red F8 c1 Frt def G104 (on top left rear of engine) G200 (near left kick panel) G203 (near right kick panel) Ground Hot at all times Hot in run Hot in run or start Hvac 1 fuse 10a Hvac control module (behind center of dash) Hvac/ ecas fuse 10a I/p fuse block (lower left side of dash) I/p junction block (lower right side of dash) I/p relay block (left side of dash) Ign 3 Ign e fuse 10a Inside air temp sig Inside air temperature sensor assembly Inst lamp dim ctrl Interior lights system Left temp control Lo lt air temp sig Lo press sens sig Lo rt air temp sig Logic Low ref Lower left air temperature sensor (middle left side of dash, under left round discharge duct) Lower right air temperature sensor (middle right side of dash, in front of rectangular discharge duct) Lt temp door ctrl Mirrors system Mode Mode door ctrl Powertrain control module (left front of engine compt) Rear def Recir Recir door ctrl Recirc door po sig Red Right temp control Rt temp door ctrl S102 (in engine harn, 4 cm from knock sensor connector) S214 (i/p harn, 50.4 cm from junction of instrument cluster connector harn to i/p harn) S216 (i/p harn, 2.5 cm from junction of air temp- erature sensor) S301 Sp205 (on left side of dash) Speed ctrl Tan Temp sen ass ctrl Underhood fuse block (left side of engine compt, near battery) Up lt air temp sig Up rt air temp sig Upper left air temperature sensor (at left side of dash panel) Upper right air temperature sensor (at right side of dash panel) Automatic A/C Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Automatic A/C Wiring Diagram (2 of 2) for Hummer H2 2003: 18 Ambient light sens lo ref Ambient light sens sig Ambient light sensor Ambient light/ sunload sensor assembly (top center of dash) B12 Body control module (top left side of dash, above i/p fuse block) Class 2 serial data I/p junction block (lower right side of dash) Lefft sunload sensor sig Left air temperature actuator (lower middle underside of hvac assembly) Left solar sensor Logic Mode actuator (left side of hvac assembly) Recirculation actuator (top front of hvac assembly) Right air temperature actuator (middle top of hvac assembly) Right solar sensor Right sunload sensor sig Tan Compressor Wiring Diagram for Hummer H2 2003 List of elements for Compressor Wiring Diagram for Hummer H2 2003: 25 5v ref A/c comp cl rly ctrl A/c comp fuse 10a A/c compressor clutch A/c compressor clutch relay A/c low pressure switch (right side of accumulator) A/c on switch A/c ref pre sens sig A/c refrigerant pressure sensor (in rear of a/c compressor) A12 B11 Class 2 ser data Class 2 serial data G104 (on top left rear of engine) Hot at all times Hot in run or start Hvac control module (behind center of dash) Ign e fuse 10a Lo press sens sig Logic Low ref Powertrain control module (left front of engine compt) S102 (in engine harn, 4 cm from knock sensor connector) Sp205 (on left side of dash) Underhood fuse block (left side of engine compt, near battery)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Hummer H2 2003 List of elements for Anti-lock Brakes Wiring Diagram for Hummer H2 2003: 67 Abs fuse 60a Abs ind B12 Body control module (bcm) (on top left side of dash, above i/p fuse block) Brake fld level Brake fluid level switch (on left side of brake fluid reservoir) Brake ind Brake pressure modulator valve C 1995 vftc C1 e7 C2 b7 Data link connector (dlc) (under left side of dash, below steering column) E11 Electronic brake control module (ebcm) (left side of inner frame) Etc/ecm fuse 15a Exterior lights system F12 G104 (at top left rear of eng) G200 (on left side of dash, near left kick panel) G300 (on left side of body mount, in front of driver door) G308 (at right frame body mount, near right rear door) Gnd Hot at all times Hot ignition 1 relay enerziged Hot in run or start I/p fuse block (on lower left side of dash) Ign 1 Ign e fuse 10a Ignition 1 volt Illum Instrument panel cluster Interior lights system Left front wheel speed sensor Left rear wheel speed sensor Lf whl spd Lng rate 5v ref Lng rate lo ref Lng rate sig Longitudinal accelerometer (in center console, below radio) Lr whl spd Nca Park brake Park brake switch Pnk Pump motor Red Rf whl spd Right front wheel speed sensor Right rear wheel speed sensor Rr whl spd S102 S217 Seo b2 fuse 30a Serial data Splice pack sp205 (on left side of dash, near footwell courtesy lamp, on i/p harn) Stop lp fuse 25a Stop lp sw Stoplamp switch (on top of brake pedal bracket) Tan Trac ctrl ind Trac ctrl sig Traction control ind Traction control off ind Traction control switch Transfer case shift control module Underhood fuse block (at left side of eng compt, near battery) Veh stop fuse 15a
ANTI-THEFT Forced Entry Wiring Diagram for Hummer H2 2003 List of elements for Forced Entry Wiring Diagram for Hummer H2 2003: 49 (left side of dash, above i/p fuse block) A12 Ajar sw All times B12 Battery Body control module D12 Door ajar sw sig Door sw lo ref Driver door latch assembly Driver door module (inside driver door) Ex lights ctrl Exterior lights system Front passenger door module (inside front passenger door) G200 (near left kick panel) G302 (bottom of left "b" pillar) G306 (bottom of right "b" pillar) G410 (on right rear inner body panel) Ground Headlights ctrl Headlights system Horn rly ctrl Horns system Hot at I/p fuse block (lower left side of dash) I/p junction block (lower right side of dash) I/p relay block Instrument panel cluster Key sw Key sw sig Left liftgate ajar switch Left rear door latch assembly Liftgate ajar sw Lr door ajar sw Right liftgate ajar switch Right rear door latch assembly Rr door ajar sw S310 S390 S901 S902 (lower right side of liftgate) Security indicator Serial data Splice pack sp205 (on left side of dash) Splice pack sp410 Tan Tbc batt fuse 10a Underhood fuse block Passlock Wiring Diagram for Hummer H2 2003 List of elements for Passlock Wiring Diagram for Hummer H2 2003: 48 12v ref A11 A12 B12 Battery Body control module (on top left side of dash, above i/p fuse block) Connector (below steering column) D12 Data link Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel injector 5 Fuel injector 6 Fuel injector 7 Fuel injector 8 G200 (at left kick panel) Ground Hot at all times Hot in run & start I/p relay block (near left kick panel) Ign 1 volt Inj 1 ctrl Inj 2 ctrl Inj 3 ctrl Inj 4 ctrl Inj 5 ctrl Inj 6 ctrl Inj 7 ctrl Inj 8 ctrl Instrument panel cluster Key Lock cylinder Low ref Magnet Passlock sensor (internal to steering column) Pnk Powertrain control module (in left front of engine compartment) Sec sens sig Security indicator Security sensor Serial data Splice pack sp205 (left side of dash) Tamper sensor Tbc batt fuse 10a Tbc ign 1 fuse 10a Underhood fuse block
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Body Control Modules Wiring Diagram (1 of 2) for Hummer H2 2003: 73 12 volt ref A10 A11 A12 Ambiennt light sens sig Ambient light sensor Ambient light sensor (top center of dash) Anti-lock brakes system Anti-theft system B10 B11 B12 Battery + Body control module (on lower left side of dash, below steering column) Class 2 serial data Computer data lines system Defogger system Dimming input/courtesy lmp pwm Dimming potentiometer 5volt ref Door locks system Driver sunload sens sig Drl off ind Drl relay ctrl Drl sw sig E11 E12 Exterior lights system F0og light relay ctrl F10 Front fog lamp sw sig G203 (near left "a" pillar) Gropund Ground Headlamp high beam relay ctrl Headlamp low beam relay ctrl Headlights system Horn rly ctrl Horns system Hot at all times I/p lamp dinning ctrl I/p relay block Interior lamp defeat sw sig Interior lights system L solar sensor Led dimming sig Left i/p fuse block Low ref Park lamp relay ctrl Park lamp sw on sig Pass door lock sw lock ctrl Pass door lock sw unlock ctrl Passenger sunload sens sig Pnk Power distribution system Power tops system R solar sensor Rear defog rly ctrl Red Remote radio ctrl sig S217 Securityn system sens sig Sound system Steering wheel position sen sig Sunload sensor (on center of dash, near defrost deflectors) Tan Tbc 2a fuse 15a Tbc 2c fuse 15a Tbc batt fuse 10a Tow/haul sw sig Tow/haul switch Underhood fuse block W/ automatic a/c W/ manual a/c Body Control Modules Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Body Control Modules Wiring Diagram (2 of 2) for Hummer H2 2003: 47 A10 A11 Accessory volt Ambient light sens low ref B10 B11 B12 Backup lamp sig Battery + Body control module (on top left side of dash, above i/p fuse block) Courtesy lamps on sig Dimmer potentiometer low ref Door locks system Exterior lights system Headlamp sw flash to pass sig Headlamp sw headlamp on sig Headlights system Hot at all times Hot in run & acc Hot in run & start Hot in run, start & acc Ignition 0 volt Ignition 1 volt Interior lights system Key in ignition sw sig Left i/p fuse block Left rear door ajar sw sig Lift gate ajar sw sig Park brake sw sig Park brake switch (part of park brake assembly) Pnk Power window lockout lr sig Power window lockout rr sig Power window sw lr down sig Power window sw lr up sig Power window sw rr down sig Power window sw rr up sig Power windows system Rear door lock sw sig Rear door unlock sw sig Right rear door ajar sw sig Tbc 2b fuse 15a Tbc accy fuse 10a Tbc ign 0 fuse 10a Tbc ign 1 fuse 10a Underhood fuse block Warnings system
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Hummer H2 2003 List of elements for Computer Data Lines Wiring Diagram for Hummer H2 2003: 35 (not used) Air suspension module Audio amplifier B10 B11 B12 Body control module (on top left side of dash, above i/p fuse block) Cig ltr fuse 15a Class 2 serial data Data link connector (dlc) (under left side of dash, below steering column) Driver memory seat module Electronic brake control module (ebcm) (on left side of inner frame) Front passenger door module (behind front passenger door trim panel, below switch assembly) G200 (on left side of dash, near left kick panel) G203 (at lower right side of dash, near right kick panel) Hot at all times Hvac control module (behind center of dash) I/p junction block (on lower right side of dash) I/p relay block (on left side of instrument panel, near left kick panel) Inflatable restaint sensing & diagnostic module (under left front seat) Instrument panel cluster Pnk Power distribution system Powertrain control module (pcm) (on left front of eng compt) Radio Rear seat audio control (at rear of center console) S213 Splice pack sp205 (on left side of dash, near footwell courtesy lamp, on i/p harn) Splice pack sp206 (on left side of dash, on i/p harn, near steering column in-line connector) Splice pack sp207 (on left side of dash, near left kick panel, on body harn) Tan Throttle actuator control (tac) module (at left rear of eng compt) Transfer case shift control module (behind headlamp switch) Underhood fuse block (on left side of eng compt, near battery) Vehicle communication interface module (vcim) (at center of dash, below hvac control module)
CRUISE CONTROL Cruise Control Wiring Diagram for Hummer H2 2003 List of elements for Cruise Control Wiring Diagram for Hummer H2 2003: 52 i/p fuse block (on lower left side of dash) 5v ref A10 Acceleration pedal position sensor (behind accelerator pedal) App sensor 1 sig App sensor 2 sig Class 2 data Computer data lines system Cruise control on/off switch Cruise fuse 10a Cruise ind Cruise on sw sig Etc/ecm fuse 15a F12 G104 (top left rear of engine) Ground Hot at all times Hot in run Hot in run & start I/p fuse block (on lower left side of dash) Ign Ign volt Instrument panel cluster Low ref Nca Off Pnk Powertrain control module (left front of engine compt) Resume/ accel Resume/accel Resume/accel sig S102 Serial data Set/ coast Set/coast sig Stop lps fuse 20a Stoplamp switch (top of brake pedal) Tac motor cntrl 1 Tac motor cntrl 2 Tan Throttle actuator control module (left rear of engine compt) Throttle actuator control motor Throttle body Tp sensor 1 sig Tp sensor 2 sig Turn signal multifunction switch Under- hood fuse block Underhood fuse block (near battery) Veh stop fuse 15a Vehicle speed sensor (vss) (on right rear of transmission) Vss high Vss low
DEFOGGERS Defoggers Wiring Diagram for Hummer H2 2003 List of elements for Defoggers Wiring Diagram for Hummer H2 2003: 37 (on right rear inner side body panel) A c1 A c2 A6 c1 B11 B12 Body control module (at top left side of dash) C1 f3 C1 f5 Class 2 ser data Computer data lines system Driver door module (in driver's door, part of switch assembly) Driver outside rear view mirror Front passenger door module (behind front passenger door trim panel, below switch assembly) Front passenger outside rear view mirror G410 Ground Hot at all times Hot in run and start Hvac control module (behind center of dash) I/p relay block (near left kick panel) Ign L c10 Logic Mirror htr Pnk Rear defogger relay Rear defogger switch Rear window defogger Relay cntrl Rr defog fuse 30a S901 Seo ign fuse 10a Serial data Splice pack sp410 (inside right rear cargo area) Tan Underhood fuse block (at left side of engine compartment)
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Hummer H2 2003 List of elements for Electronic Suspension Wiring Diagram for Hummer H2 2003: 54 (air suspension harn, at rear underside of vehicle) (in chassis harn, 15 cm from junction of right rear air suspension sensor) s391 (in chassis harn, 30 cm from junction of right air suspension harn to chassis harn) (near right front of compressor) 4wd fuse 15a 5volt ref Air susp exhaust valve ctrl Air susp press sens sig Air susp rly ctrl Air susp rly gnd Air suspension compressor Air suspension exhaust valve (attached to right side of compressor head) Air suspension inflator switch (in right rear of cargo area, near "d" pillar) Air suspension module (in rear compt, inside left storage compt) Air suspension pressor sensor Batt+ Class 2 serial data Computer data lines system Electronicaly controlled air suspension relay (near lower left wheelwell, attached to chassis harn) G203 (at lower right side of dash, near right kick panel) G402 (attached to front of air suspension mounting bracket) G405 (at right rear frame body mount) Hot at all times Hot in run Hvac/ ecas fuse 10a I/p fuse blck (on lower left side of dash) Ign 3 volt Inflator sw ind ctrl Inflator sw lo ref Inflator sw sig Interior lights system Left rear air suspension inlet valve Left rear air suspension sensor (at left rear frame rail, attached to top of frame) Lo ref Low ref Lr air susp sens sig Lr air susp valve ctrl Ngd Orn Overtemp sig Red Ride height active ind Ride height switch Right rear air suspension inlet valve Right rear air suspension sensor (at right rear frame rail, attached to top of frame) Rigr height sw sig Rr air susp sen sig Rr air susp valve ctrl S215 S392 S413 S414 Underhood fuse block (at left side of eng compt, near battery) Vses/ ecas fuse 60a
ENGINE PERFORMANCE
6.0L VIN U 6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for Hummer H2 2003 List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for Hummer H2 2003: 77 (below steering column) data link connector (lower right rear of engine, behind starter solenoid) 3-2 ss ctrl A/c system Ac press +5v Body control module (top left side of dash) Brk sw sig C10 Ckp +12v Ckp ref low Ckp sig Cls 2 data Cmp ref low Cmp sig Cool lev sw Crankshaft position (ckp) sensor D10 E10 Ect ref low Ect sig Eop +5v Eop ref low F10 Ftp +5v Ftp ref low G103 (top right rear of engine) Gnd Ho2s 1,1 hi Ho2s 1,1 lo Ho2s 1,2 hi Ho2s 1,2 lo Ho2s 2,1 hi Ho2s 2,1 lo Ho2s 2,2 hi Ho2s 2,2 lo Hot at all times Hot in accy, run & start Hot in run & start I/p fuse block Ign Ign 0 fuse 10a Inj 1 ctrl Inj 1 fuse 15a Inj 2 ctrl Inj 2 fuse 15a Inj 3 ctrl Inj 4 ctrl Inj 5 ctrl Inj 6 ctrl Inj 7 ctrl Inj 8 ctrl Injectors Ks 1 signal Ks 2 signal Map +5v O2 fuse 15a O2 a fuse 15a Oil lev sw sig Pcm b fuse 20a Pnk Powertrain control module (left front of engine compt) Prnd a sig Prnd b sig Prnd p sig Range b Range c Red Ref low S103 S104 Serial data Sp205 (left side of dash) Start rly ctrl Starting/ charging system Tan Tft ref low Under- hood fuse block 6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for Hummer H2 2003 List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for Hummer H2 2003: 26 (not used) (top left rear of engine) g104 Coolant level switch (in coolant reservoir) Engine coolant temperature sensor (rear of engine block) Engine oil level switch (right side of oil pan) Fuel pump & sender assembly (in fuel tank) Fuel pump relay G103 (top right rear of engine) G104 (top left rear of engine) G300 (left side body mount, in front of driver door) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe, before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe, after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe, before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe, after converter) Hot at all times Knock sensor 1 (under intake manifold) Knock sensor 2 (under intake manifold) Nca Park/neutral position switch (left side of transmission) Pcm b fuse 20a Pnk Red S102 S103 Tan Under- hood fuse block 6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for Hummer H2 2003 List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for Hummer H2 2003: 34 (chassis harn, 21 cm from ground g300) s304 1-2 shift solenoid valve 2-3 shift solenoid valve 3-2 shift solenoid valve A/t fluid pressure manual valve position switch Automatic transaxle B d Brake fuse 10a c1 C c C12 Camshaft position sensor (top center rear of engine, near eop sensor) Engine oil pressure (eop) sensor (left rear of engine) Evaporative emissions canister purge solenoid (top right rear of engine) Evaporative emissions canister vent solenoid (right front side of fuel tank) F12 Fluid Fluid temperature sensor Fuel tank pressure sensor (in fuel tank) Hot at all times Hot in run I/p fuse block Manifold absolute pressure sensor (top rear of engine, on intake manifold) Pnk Pnk a Pressure control solenoid valve Pressure switches Red Stop lps fuse 25a Stop- lamp switch (top of brake pedal bracket) Tcc pwm solenoid valve Tcc solenoid valve Under- hood fuse block Underhood fuse block Vehicle speed sensor (right rear side of transmission) 6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for Hummer H2 2003 List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for Hummer H2 2003: 37 (behind accelerator pedal) accelerator pedal position sensor 4ws fuse 15a A10 App sens 1 App sens 2 Cruise control system Cruise req Data Etc/ecm fuse 15a G103 (top left rear of engine) G103 (top right rear of engine) Gnd Ground Hot at all times Hot in run or start I/p fuse block Iat sensor Ign Mass airflow (maf)/ intake air temperature (iat)/ sensor (in air induction tube) Pnk R/a input Red Ref low S/c input S102 S103 Signal Stp lp in Tac cntrl Tac ctrl Tan Throttle actuator control module (left rear of engine compt) Throttle body Tp sens 1 Tp sens 2 Underhood fuse block Veh stop fuse 15a 6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for Hummer H2 2003 List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for Hummer H2 2003: 81 (in ignition coil harness) (top left rear of engine) g104 1-2 ss ctrl 2-3 ss ctrl 4wd low sig A/c system A12 Ac press low B10 B11 Charge ind Clu rly ctrl Cmp +12v Crank fuse 10a Crank volt Ctrl Evap canp ctrl Evap vent ctrl Fuel lev sig Fuel press sig G103 (top right rear of engine) Gen f duty Gnd Ho2s 1,1 htr Ho2s 1,2 htr Ho2s 2,1 htr Ho2s 2,2 htr Hot in run & start Hot in start Iat sig Ign Ign 1 ctrl Ign 1 fuse 10a Ign 2 ctrl Ign 3 ctrl Ign 4 ctrl Ign 5 ctrl Ign 6 ctrl Ign 7 ctrl Ign 8 ctrl Ignition coils Instrument cluster system Instrument panel cluster Maf sig Malfunction indicator lamp Map sig Mil ctrl Nca Nca nca Pc sol hi ctrl Pc sol lo ctrl Pcm1 fuse 15a Pmp rly ctrl Pnk Pnk d Powertrain control module (left front of engine compt) Press sens sig Prnd c sig Red Red c Ref lo Ref low Rpm out S103 S140 S141 S142 S160 S162 Spark plug Starting/ charging system Starting/charging system Tan Tcc pwm ctrl Tcc sol ctrl Tft sens sig Transmissions system Underhood fuse block Vss high sig Vss low sig Vss out
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Hummer H2 2003 List of elements for Back-up Lamps Wiring Diagram for Hummer H2 2003: 21 (on lower left side of dash) A11 B/u lp fuse 20a Back-up lamp signal Body control module (on top left side of dash, above i/p fuse block) C3 c2 Exterior lights system (exterior lights circuit) F10 c1 F8 c2 G401 (at left rear frame body mount) Hot in run & start I/p junction block Left back-up lamp Park/neutral position Pnk Power mirrors system Rear junction block (on underside of rear body, near center of rear bumper) Right back-up lamp Switch (left side of transmission) Trl b/u fuse 10a Underhood fuse block (left side of engine compartment near battery) Exterior Lamps Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Hummer H2 2003: 62 (in body harn, 27.5 cm from junction of left rear marker marker lamp to body harness) s412 A10 A12 Body control module (on top left side of dash, above i/p fuse block) C1 b C1 d C1 g C2 d C2 e C3 a C3 b D10 E c1 Electronic brake control module F c3 F11 F12 Frt pkr fuse 10a G100 (left front frame body mount) G401 (left rear frame body mount) G410 H c2 Hot at all times Hot in run or start Ign e fuse 10a Instrument panel cluster Int park fuse 10a Left front marker lamp Left front park/ turn signal lamp Left rear marker lamp Left rear turn signal lamp Left tail/ stop lamp Left turn signal ind License lamps Logic Lr park fuse 10a Nca Park lamp relay Park lamp rly ctrl Pnk Rear junction block (on underside of rear body, near center of rear bumper Rear junction block (on underside of rear body, near center of rear bumper) Red Right front marker lamp Right front park/ turn signal lamp Right rear marker lamp Right rear turn signal lamp Right tail/ stop lamp Right turn signal ind Rr park fuse 10a S100 S101 S210 (in i/p harness, 8.5 cm from junction of instrument cluster conn harness to i/p harness) S211 (in i/p harness, 15 cm from junction of instrument cluster conn harn to i/p harn) S480 (in body harness, 28 cm from junction of c420) S901 Splice pack sp410 (middle of right rear "d" pillar) Stop lamp switch (above brake pedal) Stop lp fuse 25a Throttle actuator control module (left rear of engine compartment) Trl park fuse 10a Underhood fuse block (left side of engine compartment near battery) Exterior Lamps Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Hummer H2 2003: 63 (left side of liftgate, near junction of rear defogger connector to liftgate harness) s900 Anti-theft system (ignition key alarm switch) C1 a11 C1 f9 C10 C2 b C4 a C4 h C6 b Center front roof lamps Center high mounted stop lamp Center rear roof lamps D10 E10 Exterior lamps (backup lamps circuit) F10 Flash fuse 25a G200 (on left side of dash, near left kick panel) G203 (at lower right side of dash, near right kick panel) G401 (left rear frame body mount) G410 Ground Hazard switch Hazard switch signal Hot at all times I/p fuse block (on lower left side of dash) I/p junction block (lower right side of dash) I/p relay block (left side of i/p, near left kick panel) Lamp to i/p harness) Left Left front clearance lamp Left rear clearance lamp Left turn signal switch signal Lt trlr fuse 10a Lt turn fuse 10a Pnk Red Right Right front clearance lamp Right rear clearance lamp Right turn signal switch signal Roof lamp connector to roof marker harness) s345 Rt trlr fuse 10a Rt turn fuse 10a S219 (in steering column harness) S303 S411 (in body harness, 27.5 cm from junction of left rear marker lamp to body harness) S901 Splice pack sp410 (middle of right rear "d" pillar) Splice pack sp410 (middle of right rear near center "d" pillar) Stop lamp switch signal Stud 1 Stud 1 fuse 40a Stud 2 Stud 2 fuse 30a Tan Trailer connector Turn signal switch Turn signal/ multifunction switch Turn signal/hazard flasher module Underhood fuse block (left side of engine compartment near battery) Veh chmsl fuse 10a Veh stop fuse 15a Off-Road Lighting Wiring Diagram for Hummer H2 2003 List of elements for Off-Road Lighting Wiring Diagram for Hummer H2 2003: 25 E10 F10 G100 (on left front frame body mount) G203 (at lower right side of dash, near right kick panel) Grille guard off- road lamps Hot at all times I/p junction block (lower right side of dash) I/p relay block (left side of i/p, near left kick panel) Inner roof off- road lamps Off road lamps relay 1 Off road lamps relay 2 Off road lamps switch Outer roof off- road lamps Red S105 S106 S208 S209 S213 S313 S314 S315 Stud 1 Stud 2 fuse 30a Underhood fuse block (left side of engine compartment near battery)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 5) for Hummer H2 2003 List of elements for Ground Distribution Wiring Diagram (1 of 5) for Hummer H2 2003: 44 (woven strap) A/c compressor clutch A/c low pressure switch Battery (left) Brake fluid level switch C2 d Coolant level switch Engine oil level switch F/pmp relay G100 (on left front frame body mount) G102 (at left front side of engine block) G103 (at top right rear of engine) G104 (top left rear of engine) G106 (right rear of engine compt) Grille gaurd off-road lamp High horn If equipped Ign 1 relay Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 Intake air temperature (iat)/mass airflow (maf) sensor Left daytime running lamp (drl) Left front park/turn signal lamp Left headlamp Low horn Nca Park/ neutral position switch Powertrain control module Right daytime running lamp (drl) Right front park/turn signal lamp Right headlamp S102 (in engine harn, 4 cm from knock sensor connector) S103 (in engine harn, 10 cm from junction of fuel inj 3 harn to engine harn) S104 (in engine harn, 30 cm from junction of fuel inj 3 harn to engine harn) S106 Throttle actuator control (tac) Underhood fuse block (left side of engine compt, near battery) Windshield washer fluid level sensor Ground Distribution Wiring Diagram (2 of 5) for Hummer H2 2003 List of elements for Ground Distribution Wiring Diagram (2 of 5) for Hummer H2 2003: 36 C3 a Driver memory seat module Electronic brake control module (ebcm) Front passenger lumbar/ seat bolster switch Front passenger seat adjuster switch Fuel pump G300 (on left side body mount in front of driver door) G302 (at left inner center "b" pillar) G304 (under passenger seat) G306 (at right inner center "b" pillar) G308 (at right frame body mount, near right rear door) G310 (at left frame body mount, near left rear door) Inflatable restraint sensing & diagnostic module Left "b" pillar courtesy lamp Left rear door ajar switch Left rear door courtesy lamp Left rear heated seat control module Left rear heated seat element Left rear window switch Nca Rear door lock switch Right "b" pillar courtesy lamp Right rear door ajar switch Right rear door courtesy lamp Right rear heated seat control module Right rear heated seat element Right rear window switch S306 (in left rear seat harn) S310 (in body harn, 8.5 cm from right "b" pillar courtesy lamp harn junction to body harn) S381 (in passenger seat harn, 16 cm from lumbar bolster switch) S390 (in body harn, 18.5 cm from junction of sir module) S393 (in right seat harn, 34 cm from heated seat module) S720 (in right rear door harn, 12 cm from junction of speaker connector harn to door harn) S820 (in leftt rear door harn, 11.5 cm from junction of courtesy lamp connector harn to door harn) Transfer case shift control motor W/ front & rear heated seats Ground Distribution Wiring Diagram (3 of 5) for Hummer H2 2003 List of elements for Ground Distribution Wiring Diagram (3 of 5) for Hummer H2 2003: 69 (w/o sunroof) inside rearview mirror A/t shift lever position indicator lamp A/t shift lock solenoid A12 Blower motor C1 4c C1 b9 C1 d9 C1 f6 C2 f C3 c C3 d C7 f Cigar lighter Console accessory power outlet Data link connector Door lock relay Door unlock relay Driver door module Electric park lock solenoid Floor shift assembly Front passenger door module G203 (at lower right side of dash, near right kick panel) Garage door opener Headlamp switch Hvac control module I/p compartment lamp I/p fuse block (lower left side side of dash) I/p junction block (lower right side of dash) I/p relay block (near left kick panel) Inflatable restraint i/p module disable switch Inside air temperature sensor assembly Inside rear view mirror (isrvm) Instrument panel cluster Left accessory power outlet Left footwell courtesy lamp Left front clearance lamp Left front courtesy/ reading lamp Left rear heated seat switch Left vanity mirror lamp Nca Off-road lamps relay 1 Off-road lamps relay 2 Off-road lamps switch Ride height switch Right accessory power outlet Right footwell courtesy lamp Right front clearance lamp Right front courtesy/ reading lamp Right rear heated seat switch Right vanity mirror lamp Roof marker lamp Roof off-road lamps S208 S302 (in headliner harn, near middle of left "a" pillar) S303 (in roof marker harn, 22 cm from right front marker lamp connector) S315 S351 (in console harn, 28.5 cm from junction of body harn in-line c355 to floor console harn) Second row dome/ reading lamp Sunroof assembly Sunroof relay Sunroof switch Third row dome/ reading lamp Tow/ haul switch Transfer case shift control switch W/ off-road lamps W/ sunroof only W/o off-road lamps Windshield wiper motor Ground Distribution Wiring Diagram (4 of 5) for Hummer H2 2003 List of elements for Ground Distribution Wiring Diagram (4 of 5) for Hummer H2 2003: 31 A12 Audio amplifier B12 Body control module C1 a8 C1 f8 C2 a C2 b6 C3 b6 Data link connector Driver information center (dic) switch G200 (on left side of dash, near left kick panel) Headlamp & panel dimmer switch Hvac control module I/p relay block (near left kick panel) Ignition key alarm switch Ignition key lock solenoid Inflatable restraint steering wheel module coil Instrument panel cluster Nca Onstar module Radio Rear seat audio (rsa) control Rear wiper/ washer switch S217 S218 (in steering column harn) S219 (in steering column harn) tan Tan Traction control switch Turn signal hazard flasher module Turn signal/ multifunction switch Ground Distribution Wiring Diagram (5 of 5) for Hummer H2 2003 List of elements for Ground Distribution Wiring Diagram (5 of 5) for Hummer H2 2003: 29 (not used) Air suspension compressor Air suspension module Center high mounted stop lamp (chmsl) E c1 G401 (at left rear frame body mount) G402 (at right rear frame body mount) G402 (attached to front of air suspension mounting bracket) G410 (on right rear inner side body panel) Left backup lamp Left license lamp Left liftgate ajar switch Left rear clearance lamp Left rear turn signal lamp Left tail/stop lamp Nca Rear accessory power outlet Rear junction block (on underside of rear body, near center of rear bumper) Rear window defroster grid Rear window wiper motor Right backup lamp Right license lamp Right liftgate ajar switch Right rear clearance lamp Right rear turn signal lamp Right tail/stop lamp Roof marker lamp Splice pack sp410 (middle of right rear "d" pillar) Trailer connector
HEADLIGHTS Headlights Wiring Diagram for Hummer H2 2003 List of elements for Headlights Wiring Diagram for Hummer H2 2003: 42 A12 Amb lt low ref Amb lt sens sig Ambient light sensor (on top center of dash) Auto Body control module (on top left side of dash, above i/p fuse block) Drl defeat Drl fuse 10a Drl relay Drl rly ctrl Drl sw sig Flash to pass G100 (on left front body mount) G104 (at top left rear of engine) G200 (left side of dash, near left kick panel) Hdlp dim sw sig Head Headlamp high relay Headlamp low relay Headlamp switch Hi bm rly ctrl Hi hdlp lt fuse 10a Hi hdlp rt fuse 10a Hi/lo beam select Hlps on sig Hot at all times I/p relay block (left side of dash, near left kick panel) Left daytime running lamp Left headlamp Lo bm rly ctrl Lo hdlp lt fuse 10a Lo hdlp rt fuse 10a Park Park lamp sw on Right daytime running lamp Right headlamp S100 S101 S102 Tan Turn signal malfunction switch Underhood fuse block (left side of engine compt)
HORN Horn Wiring Diagram for Hummer H2 2003 List of elements for Horn Wiring Diagram for Hummer H2 2003: 19 (left side of engine compartment) (on left side of dash) g200 C2 body control module (in center console) G c1 G100 (on left front frame body mount) Horn fuse 15a Horn relay Horn relay cntrl Horn slip ring Horn switch Hot at all times I/p relay block (on left side of dash, near left kick panel) c1 Left horn (left side of radiator support) Nca Right horn (right side of radiator support) S101 S10o Turn signal/ multifunction switch Underhood fuse block
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Hummer H2 2003 List of elements for Instrument Cluster Wiring Diagram for Hummer H2 2003: 81 (not used) A10 A11 A12 Abs ind Airbag ind B10 B11 B12 Batt Batt volt Battery ind Body control module (top left side of dash, above fuse block) Brake ind Class 2 serial data Coil assembly Computer data lines system Cruise control ind Dic fuel sig Dic set/reset sw sig Dic switch sig Dic toggle switch sig Driver info center Eng speed sig Engine coolant temperature Engine oil pressure Engine speed cntrl Exterior lights system F7 c1 Fuel Fuel economy switch G100 (on left front frame body mount) G200 (near left kick panel) G203 (near right kick panel) Ground High beam ind Hot at all times Hot in run or start I/p lamps dimming control I/p relay block (on lower left side of dash, behind access panel) Ign 1 volt Ign e fuse 11 10a Ignition Instrument panel cluster Ipc class 2/serial data Ipc logic Ipc/dic fuse 19 10a Left turn ind Left turn sig volt Low fuel ind Low wash fluid ind sig Malfunction ind Malfuntion ind cntrl Mil control Nca P r n d 3 2 1 Park sw Personalize switch Pnk Powertrain control module (in left front of engine compt) Red Right turn ind Right turn sig volt S100 S213 S218 Seat belt ind Security ind Select switch Speedometer Steering wheel controls Tachometer Tow/haul ind Traction control off Transmission fluid temperature Trip switch Underhood fuse block (left side of engine comp, near battery) Vehicle speed sig Volts Vss Washer fluid level sensor (at bottom right corner of washer fluid container)
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 3) for Hummer H2 2003 List of elements for Courtesy Lamps Wiring Diagram (1 of 3) for Hummer H2 2003: 41 A11 Ajar B12 Body control module (top left side of dash, above i/p fuse block) C5 a1 Class 2 data Class 2 serial data Ctsy lamp ctrl Ctsy lamp on sig Ctsy lamp power Dome lamp switch Door ajar sig Driver door courtesy lamp Driver door latch assembly Driver door module (ddm) (in drivers door part of switch assembly) F tan G302 (left inner center "b" pillar) G306 (right inner center "b" pillar) G410 (right rear inner side body panel) Headlamp & panel dimmer switch Int lamp defeat sig Int lamp defeat sw Left liftgate ajar switch Left rear door courtesy lamp Left rear door latch assembly Lift gate ajar sig Low ref Lr door ajar sig Right liftgate ajar switch Right rear door courtesy lamp Right rear door latch assembly Rr door ajar sig S310 S390 S720 S820 S901 S902 Sp205 (left side of dash) Splice pack sp410 (middle of right rear "d" pillar) Tan Courtesy Lamps Wiring Diagram (2 of 3) for Hummer H2 2003 List of elements for Courtesy Lamps Wiring Diagram (2 of 3) for Hummer H2 2003: 12 Center courtesy/ reading lamps Dome Left front courtesy/ reading lamp Left vanity mirror lamp Reading Rear courtesy/ reading lamps Right front courtesy/ reading lamp Right vanity mirror lamp S300 (in headliner harness, 10 cm from junction of courtesy/reading lamp center harness to headliner harness) S301 (in headliner harness, at top of left "a" pillar, near corner of windshield) S305 (in headliner harness, 5 cm from top mounting clip) Tan Courtesy Lamps Wiring Diagram (3 of 3) for Hummer H2 2003 List of elements for Courtesy Lamps Wiring Diagram (3 of 3) for Hummer H2 2003: 29 A12 Ajar B10 C10 Class 2 data Ctsy lamp control Ctsy lamp power Door ajar sig Front passenger door courtesy light Front passenger door latch assembly Front passenger door module (fpdm) (in right front door below switch assembly) G200 (left side of dash, near kick panel) G203 (behind right side of dash, near right kick panel) G302 (left inner center "b" pillar) G306 (right inner center "b" pillar) I/p compartment lamp I/p fuse block (lower left side of dash) I/p junction block (lower right side of dash) I/p relay block (below left side of dash, near left kick panel) Left "b" pillar courtesy lamp Left footwell courtesy lamp Low ref Right "b" pillar courtesy lamp Right footwell courtesy lamp S213 S215 S310 S390 Tan Instrument Illumination Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Hummer H2 2003: 59 4 hi ind 4 hi ind control 4 hi locked ind 4 hi locked ind control 4 lo ind 4 lo ind control 5 volt ref B pnk B11 Back only ind Back only ind ctrl Body control module (top left side of dash, above i/p fuse block) Class 2 serial data Computer data lines Ddm fuse 15a Diff lock ind control Dimming input Dimming return Driver door module (ddm) (in drivers door, part of switch assembly) Driver window/ door lock switch Drl off ind Drl off ind ctrl E10 Front passenger door module (pdm) (behind front passenger door trim, below swtch assembly) Front passenger window/door lock switch G203 (lower right side of dash, near kick panel) Gnd Ground Headlamp on ind ctrl Headlamp on indicator Headlamp switch Heated seat switch High heat ind High heat ind ctrl Hot at all times I/p fuse block (lower left side of dash) I/p junction block (lower right side of dash) Illum Illum ctrl Illumination Instrument panel dimming Lbec 2 fuse 50a Lockout ind Lockout ind ctrl Low heat ind Low heat ind ctrl Med heat ind Med heat ind ctrl Memory/heated seat switch Pdm fuse 15a Pnk Rear differential lock ind Red S213 Seat sw pwr Switch illum Transfer case shift control module (behind headlamp switch) Transfer case shift control switch Underhood fuse block (left side of engine comp) Instrument Illumination Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Hummer H2 2003: 39 A11 A12 Air suspension module C1 b9 C10 C277 Electronic brake control module (ebcm) (left side of inner frame) Fuse 2a G200 (left side of dash, near left kick panel) G302 (left inner center "b" pillar) G306 (right inner center "b" pillar) Garage door opener Height control sw c2 ind control Hvac control assembly I/p relay block (below left side of dash, near kick panel) Inflatable restraint i/p module disable switch Inflatable restraint steering wheel module coil Instrument cluster Left rear heated seat switch Left rear window switch Prndl lamp Rear window wiper/washer switch Red Ride height switch Right rear heated seat switch Right rear window switch S213 S215 S217 S302 S350 (in console harness, 7 cm from junction of body harn in-line c355 to floor console harn S351 (in console harn 28.5 cm from junction of body harn in-line c355 to floor console harn S720 S820 Steering wheel controls Sunroof switch Tow/haul switch Traction control switch Traction ind control
MEMORY SYSTEMS Memory Mirrors Wiring Diagram for Hummer H2 2003 List of elements for Memory Mirrors Wiring Diagram for Hummer H2 2003: 46 5 volt ref Batt (+) Battery Class 2 serial data Computer data lines system Ddm fuse 15a Defogger system Driver door module (in driver's door, part of switch assembly) Driver outside rearview mirror Electro- chromic Electrochromic ref Exit Extend/retract Front passenger door module (behind front passenger door trim panel, below switch assembly) Front passenger outside rearview mirror G203 (lower right side of dash) Ground Horiz pos sig Hot at all times I/p fuse block (lower left side of dash) I/p junction block (lower right side of dash) I/p relay block (left side of instrument panel, near left kick panel) Left i/p fuse block (lower left side of dash) Left/right Left/right select Low ref Lt doors circuit breaker 25a Mem 1 sw sig Mem 2 sw sig Memory/ heated seat switch Mir mtr common Mir mtr dwn ctrl Mir mtr extend ctrl Mir mtr retract ctrl Mir mtr rt ctrl Mirror control switch Pdm fuse 15a Pnk Red Rt door circuit breaker 25a S213 Set Switch pwr Tan Up/down Vert pos sig Memory Seat Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Memory Seat Wiring Diagram (1 of 2) for Hummer H2 2003: 65 (in driver seat jumper harn, approx 4.5 cm from memory seat module c3 connector) 5 volt ref 570a 570b Batt (+) C (not used) C10 h Class 2 serial data Computer data lines system Driver seat adjuster switch Frt dwn Frt up Frt vert dn sw sig Frt vert mtr dn ctrl Frt vert mtr pos sen Frt vert mtr up ctrl Frt vert up sw sig Fwd G302 (left inner center "b" pillar) Gnd Heated seat cus pwr Heated seat temp sig Horiz fwd sw sig Horiz mtr fwd ctrl Horiz mtr pos sen sig Horiz mtr rwd ctrl Horiz rwd sw sig Hot at all times Htd seat back ctrl Htd seat back pwr Htd seat cus ctrl Htd seat cus pwr I/p relay block Low ref Lum horiz pos sen sig Lum mtr fwd ctrl Lum mtr rwd ctrl Lum mtr rwd ctrl lum mtr rwd ctrl Memory seat module Pnk Pnk pnk Rear vert dn sw sig Rear vert mtr pos sens Rear vert up sw sig Rec fwd Rec rwd Recline fwd sw sig Recline mtr fwd ctrl Recline mtr pos sen sig Recline mtr rwd ctrl Recline rwd sw sig Rr dwn Rr up Rr vert mtr dn ctrl Rr vert mtr up ctrl Rwd S328 Seat circuit breaker 30a Seats system (heated seats circuit) Tan Torso blstr in sw sig Torso blstr out sw sig Torso bolster in ctrl Torso bolster out ctrl Trso blstr pos sens sig Memory Seat Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Memory Seat Wiring Diagram (2 of 2) for Hummer H2 2003: 30 (in driver seat jumper harn, approx 10 cm from junction of c330 & c328) s327 (in driver seat jumper harn, approx 5 cm from junction of c330 & c328) s326 A red Batt (+) C (not used) Class 2 serial data Computer data lines system Driver door module (in driver's door, part of switch assembly) Driver seat bolster motor Driver seat bolster motor position sensor Driver seat bolster/ lumbar switch Driver seat front vertical motor Driver seat front vertical position sensor Driver seat horiz- ontal position sensor Driver seat lumbar motor Driver seat lumbar motor position sensor Driver seat rear vertical motor Driver seat rear vertical position sensor Driver seat recliner motor Driver seat recliner motor position sensor Exit Mem 1 sw sig Mem 2 sw sig Memory/ heated seat switch Nca Out Pnk Red Set Tan
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 6) for Hummer H2 2003 List of elements for Power Distribution Wiring Diagram (1 of 6) for Hummer H2 2003: 54 (not used) 4ws fuse 15a A c7 A12 Abs fuse 60a Audio amplifier B c9 B11 c1 B12 c1 Battery Battery cable junction block Body control module Cig ltr fuse 15a Cigar lighter D12 c1 Data link connector E10 Ecas relay Electronic brake control module Evap vent solenoid F2 c1 Fusible link (8-ga red) G203 (near right kick panel) Generator I/p relay block (near left kick panel) Ign a fuse 40a Ign b fuse 40a Off-road lamps relay 1 Off-road lamps relay 2 Off-road lamps switch Radio Radio amp fuse 30a Radio fuse 15a Rear seat audio (rsa) controller Rear window wiper module Red Rr wiper fuse 25a S209 S215 Starter Starter relay Stud 1 fuse 40a Stud 2 fuse 30a Sunroof fuse 25a Sunroof relay Tbc batt fuse 10a To ignition switch (diagram 5 of 6) To ignition switch (diagram 6 of 6) To ipc/dic fuse (diagram 2 of 6) Trailer connector Underhood fuse block (left side of engine compt, near battery) Vses/ ecas fuse 60a W/ off-road lamps W/o off-road lamps Power Distribution Wiring Diagram (2 of 6) for Hummer H2 2003 List of elements for Power Distribution Wiring Diagram (2 of 6) for Hummer H2 2003: 41 Air suspension module Aux pwr 1 fuse 20a B c3 B c5 B11 Blower fuse 40a Blower motor C1 f12 C10 Console auxiliary power outlet D c4 Defog relay E11 c1 Electronic brake control module (ebcm) F/pmp relay From sunroof fuse (diagram 1 of 6) G203 (near right kick panel) Garage door opener Hvac control module Hvac/ecas fuse 10a I/p junction block (lower right side of dash) I/p relay block (near left kick panel) Info fuse 15a Instrument panel cluster Ipc/dic fuse 10a Left rear heated seat module Pcm b fuse 20a Powertrain control module Red Right rear heated seat module Rr defog fuse 30a S215 Seo b1 fuse 15a Seo b2 fuse 30a Stop lp fuse 25a Stoplamp switch To lbec 1 fuse (diagram 3 of 6) Transfer case shift control module Trec fuse 30a Underhood fuse block (left side of engine compt, near battery) Vehicle communication interface module Power Distribution Wiring Diagram (3 of 6) for Hummer H2 2003 List of elements for Power Distribution Wiring Diagram (3 of 6) for Hummer H2 2003: 81 (left side of engine compt, near battery) underhood fuse block (lower left side of dash) (near left kick panel) i/p relay block A c5 A c6 A/c comp fuse 10a A/c comp relay A10 A12 A7 c1 Aux pwr 2 fuse 20a B c7 B10 B12 B7 c2 Body control module C c3 C9 c1 Console accessory power outlet Ddm fuse 15a Driver door module Driver memory seat module Drl fuse 10a Drl relay E c10 E c7 E10 E11 c1 E12 Electronic brake control module (ebcm) Etc/ecm fuse 15a Evaporative emissions (evap) canister purge solenoid F c3 Flash fuse 25a From mbec 1 fuse (diagram 3 of 6) From pcm b fuse (diagram 2 of 6) Front passenger door module Front passenger lumbar bolster switch Front passenger seat adjuster switch G104 (top left rear of engine) G203 (near right kick panel) G410 (on right rear inner side body panel) Hdlp-hi relay Hdlp-low relay Horn relay I/p fuse block I/p junction block Ign 1 relay Intake air temperature (iat)/mass airflow (maf) sensor assembly Lbec 1 fuse 50a Lbec 2 fuse 50a Left rear window switch Lock relay Locks fuse 20a Lt doors circuit breaker 25a M c4 Mbec 1 fuse 50a Park lp relay Pcm 1 fuse 15a Pdm fuse 15a Pnk Powertrain control module Rear accessory power outlet Red Right rear window switch Rt door circuit breaker 25a S102 S215 Seat circuit breaker 30a Splice pack 410 (middle of right rear "d" pillar) Tbc 2a fuse 15a Tbc 2b fuse 15a Tbc 2c fuse 15a Throttle actuator control module To ign 1 relay (diagram 3 of 6) To inj 1 fuse (diagram 4 of 6) To seo ign fuse (diagram 6 of 6) Turn signal/ hazard flasher module Unlock relay W/s wash fuse 15a W/s wash relay Power Distribution Wiring Diagram (4 of 6) for Hummer H2 2003 List of elements for Power Distribution Wiring Diagram (4 of 6) for Hummer H2 2003: 26 (left side of engine, compt, near battery) underhood fuse block C10 D10 E10 From pcm 1 fuse (diagram 3 of 6) Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel injector 5 Fuel injector 6 Fuel injector 7 Fuel injector 8 Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 Inj 1 fuse 15a Inj 2 fuse 15a Pnk S140 (in engine coil harn) S160 (in engine coil harn) Power Distribution Wiring Diagram (5 of 6) for Hummer H2 2003 List of elements for Power Distribution Wiring Diagram (5 of 6) for Hummer H2 2003: 47 (lower left side of dash) i/p fuse block (not used) 4wd fuse 15a Acc Air suspension module Automatic transmission Body control module Brake fuse 10a C1 e8 C175 C4 c Crank fuse 10a Cruise fuse 10a E11 F10 Floor shift assembly From ign a fuse (diagram 1 of 6) Hvac 1 fuse 10a Hvac control module I/p junction block (lower right side of dash) I/p relay block (near left kick panel) Ign 0 fuse 10a Ign 3 fuse 10a Ignition switch Inside rear view mirror Left air temperature actuator Left rear heated seat module Lock Mode actuator Nca Off Pnk Pnk pnk Powertrain control module Recirculation actuator Red Ride height switch Right air temperature actuator Right rear heated seat module Run S216 (in i/p harn, 2.5 cm from junction of air temperature sensor) Start Stoplamp switch Tbc ign 0 fuse 10a Transfer case shift control switch Turn signal/ multifunction switch Underhood fuse block (left side of engine compt, near battery) Power Distribution Wiring Diagram (6 of 6) for Hummer H2 2003 List of elements for Power Distribution Wiring Diagram (6 of 6) for Hummer H2 2003: 46 (left side of engine compt, near battery) underhood fuse block A/c comp relay Acc B/u lp fuse 20a Body control module C1 b2 C8 d (not used) D10 Defog relay F11 F8 c2 From ign 1 relay (diagram 3 of 6) From ign b fuse (diagram 1 of 6) Heated oxygen sensor bank 1 sensor 1 Heated oxygen sensor bank 1 sensor 2 Heated oxygen sensor bank 2 sensor 1 Heated oxygen sensor bank 2 sensor 2 I/p fuse block (lower left side of dash) I/p relay block (left of steering column) I/p relay block (near left kick panel) Ign e fuse 10a Ignition switch Inflatable restraint i/p module disable switch Inflatable restraint sensing & diagnostic module Instrument panel cluster Lock Nca O2a fuse 15a O2b fuse 15a Off Park/neutral position switch Pnk Rear window wiper/ washer switch Red Rr wpr fuse 15a Run Seo accy fuse 10a Seo ign fuse 10a Sir fuse 15a Start Tbc accy fuse 10a Tbc ign 1 fuse 10a Traction control switch Turn signal/ multifunction switch Windshield wiper motor & module Ws wpr fuse 25a
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Power Door Locks Wiring Diagram (1 of 2) for Hummer H2 2003: 41 (behind left side of dash) i/p fuse block A12 B12 Battery Body control module (on top left side of dash) C1 a2 C1 a4 C1 a7 C1 c9 C1 f6 C3 d C4 l Driver door module (inside driver door) Front passenger door module (inside front passenger door) G200 (at left kick panel) G203 (at right kick panel) Ground Hot at all times Hot at all times all times I/p fuse block (behind left side of dash) I/p junction block (behind right side of dash) I/p relay block (behind left side of dash) Ign key sw sig Ignition key alarm switch (on ignition key cylinder) Liftgate door lock actuator Lock ctrl Lock rly ctrl Lock sw sig Locks fuse 20a Pdm fuse 15a Powertrain control module (pcm) (left front of engine compartment) Rear door lock relay Rear door unlock relay Rt doors circuit breaker 25a S213 (in i/p harn, at left side of dash) S219 (in steering column harness) tan Serial data Tan Unlock ctrl Unlock rly Unlock sw sig Power Door Locks Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Hummer H2 2003: 22 (lower right (lower right side of dash) side of dash) i/p junction block A6 a6 B b C1 d12 C7 c7 Driver door lock actuator F f Front front passenger passenger door lock actuator G g G304 (below passenger seat) Hot at all times all times Instrument instrument panel panel cluster cluster L l Left rear door lock actuator M m Rear door lock switch (near lower right "d" pillar) Right rear door lock actuator Splice pack splice pack sp205 sp205 (at left side of dash, near footwell coutesy lamp) Tan Tan tan Tbc batt tbc batt fuse fuse 10a 10a Underhood fuse block (on left side of engine compt)
POWER MIRRORS Power Mirrors Wiring Diagram for Hummer H2 2003 List of elements for Power Mirrors Wiring Diagram for Hummer H2 2003: 29 Air temp sensor Ambient air temperature sensor B12 Back up lamp voltage output c5 Back up voltage Body control module (bcm) (on lower left side of dash, below steering column) Computer data lines system D3 c1 Driver door module (ddm) Driver outside rearview mirror Electrochromic mirror G203 (at lower right side of dash) Ground Hot in run Hvac 1 fuse 10a I/p fuse block I/p junction block (on lower right side of dash) I/p relay block (under left side of dash, near kick panel) Ign 1 Inside rearview mirror Left i/p fuse block (behind lower left side of dash) Low ref Mir signal On/off Pnk S213 (in i/p harness) S216 S301 (in headliner harness) Serial data
POWER SEATS Front Seat Heater Wiring Diagram for Hummer H2 2003 List of elements for Front Seat Heater Wiring Diagram for Hummer H2 2003: 57 (in driver seat jumper harn, approx 4.5 cm from memory seat module c3 connector) Back & cushion select Back only ind Back only indicator Back only select Batt Batt (+) Bck & csh select C1 a7 C1 c9 C1 f6 C10 h C2 f C3 c C3 d C3 f C7 c C7 e Computer data lines system Ddm fuse 15a Driver back heated seat element Driver cushion heated seat element Driver door module Driver memory seat module (below left front seat) Element control Front passenger door module G203 (at lower right side of dash, near right kick panel) G302 (at left inner center "b" pillar) Gnd Ground Heat mode select Hi heat ind Hi heat indicator Hot at all times I/p fuse block (on lower left side of dash) I/p junction block I/p junction block (on lower right side of dash) I/p relay block (near left kick panel) Low heat ind Low heat indicator Low ref Lt doors circuit breaker 30a Med heat ind Med heat indicator Memory/heated seat switch Passenger back heated seat element Passenger cushion heated seat element Pdm fuse 15a Pnk Rt doors circuit breaker 30a S213 S328 Seats circuit breaker 30a Serial data Switch power Tan Temp signal Lumbar Wiring Diagram for Hummer H2 2003 List of elements for Lumbar Wiring Diagram for Hummer H2 2003: 11 C10 Front passenger seat bolster motor Front passenger seat bolster/ lumbar switch Front passenger seat lumbar motor G306 (at right inner center "b" pillar) Hot at all times I/p relay block Pnk S380 S381 Seats circuit breaker 30a Passenger Power Seat Wiring Diagram for Hummer H2 2003 List of elements for Passenger Power Seat Wiring Diagram for Hummer H2 2003: 14 C10 Front passenger seat adjuster switch Front passenger seat front vertical motor Front passenger seat horizontal motor Front passenger seat rear vertical motor Front passenger seat recline motor G306 (at right inner center "b" pillar) Hot at all times I/p relay block Red S380 S381 Seats circuit breaker 25a Tan Rear Seat Heater Wiring Diagram for Hummer H2 2003 List of elements for Rear Seat Heater Wiring Diagram for Hummer H2 2003: 44 A element cntrl B switch sig Battery C ign voltage 3 C1 e4 C1 f7 C10 D battery Ddm fuse 15a E temp sig Element cntrl F ground G hi temp ind G203 (at lower right side of dash, near right kick panel) G302 (at left inner center "b" pillar) G306 (at right inner center "b" pillar) Ground H lo temp ind Hi indicator Hi temp ind Hot at all times Hot in run I/p relay block Ign 3 fuse 10a Ign voltage 3 J low ref Left rear heated seat control module Left rear heated seat element Left rear heated seat switch Lo indicator Lo temp ind Low ref Mode select Nca Pnk Right rear heated seat control module Right rear heated seat element Right rear heated seat switch S306 S351 S393 Switch sig Temp sig Underhood fuse block
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Hummer H2 2003 List of elements for Power Top/Sunroof Wiring Diagram for Hummer H2 2003: 17 B11 Body control module (on top left side of dash, above i/p fuse block) G203 (at lower right side of dash) Gnd Hot at all times Logic S302 (in headliner harness) Sunroof actuator module (in front of headliner) Sunroof actuator motor Sunroof fuse 25a Sunroof relay (attached to headliner harness, near left side of dash Sunroof relay close signal Sunroof relay open signal Sunroof relay switch output Sunroof switch Tan Underhood fuse block (at left side of engine compartment)
POWER WINDOWS Power Windows Wiring Diagram for Hummer H2 2003 List of elements for Power Windows Wiring Diagram for Hummer H2 2003: 70 (in i/p harness) (in left rear door harn) (in left rear seat harn) (in right rear door harn) A12 B12 Bcm serial data Body control module (left side of dash) C1 c9 C10 k C2 f C4 a C4 m C7 c C7 e Class 2 serial data Ddm class 2 serial data Ddm fuse 15a Down Down relay Driver door module Driver window motor Driver window switch E10 Front pass window switch Front passenger door module Front passenger window motor Front passenger window switch G203 (lower right side of dash) G302 (near middle of left "a" pillar) G306 Ground Hot at all times I/p fuse block (on left side of dash) I/p junct- ion block I/p relay block (left side of dash) Lbec 1 fuse 50a Lbec 2 fuse 50a Left doors circuit breaker 25a Left rear window motor Left rear window switch Left window switch Logic Lr wnd dwn cntrl Lr wnd up cntrl Mbec 1 fuse 50a Pdm fuse 15a Power window motor left down cntrl Power window motor lf up cntrl Pwr wnd motor rf dwn cntrl Pwr wnd motor rf up cntrl Red Right rear window motor Right rear window switch Right window switch Rr wnd dwn cntrl Rr wnd up cntrl Rt doors circuit breaker 25a S213 S720 S820 Splice pack sp205 Switch power Tan Underhood fuse block (left side of engine compartment) Up relay Window lockout indicator Window lockout switch Wnd lock lr cntrl Wnd lock rr cntrl
RADIO Radio Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Radio Wiring Diagram (1 of 2) for Hummer H2 2003: 56 A10 A11 A12 Amp sup volt Ant Antenna Antenna ant pre-amplifier B10 B11 B12 B31 Bare Bcm class 2 serial data Body control module (on top left side of dash) C201 Cell voice sig Coax Computer data lines system Drain wire G200 (on left side of dash) Ground Hot at all times I/p junction block (on lower right side of dash) I/p relay block (below lower left side of dash) Inflatable restraint steering wheel module coil Lf spk out+ Lf spk out- Lr aud sig+ Lr aud sig- Lr spk out + Lr spk out - Nca Program Radio Radio fuse 15a Rear seat audio controller (on rear of center console) Remote radio control signal Rf spk out + Rf spk out - Rr aud sig+ Rr aud sig- Seek down Seek up Serial data Source down Source up Splice pack sp205 Steering wheel audio controls Tan Underhood fuse block (at left side of engine compartment) Vehicle communication interface module (at center of dash) Voice Voice low ref Voice signal Volume down Volume up Radio Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Radio Wiring Diagram (2 of 2) for Hummer H2 2003: 51 A10 A11 A12 Audio amplifier B10 B11 B12 Bare Class 2 data Computer data lines Ground Hot at all times I/p fuse block (on lower left side of dash) L sub out+ L sub out- L twet out+ Left "d" pillar twiddler speaker Left front door speaker Left front tweeter speaker Left rear door speaker Left subwoofer Lf spkr out+ Lf spkr out- Lr aud sig+ Lr aud sig- Lr spkr out+ Lr spkr out- Lr twet out- Noise cancellation microphone R sub out+ R sub out- Radio amp fuse 30a Radio mute Red Rf aud sig+ Right "d" pillar twiddler speaker Right front door speaker Right front tweeter speaker Right i/p fuse block (on lower right side a of dash) Right rear door speaker Right subwoofer Rr aud sig+ Rr aud sig- Rr spkr out+ Rr spkr out- Rsa enable Rt spk out+ Rt spk out- Subwoofer speaker Tan Underhood fuse block (at left side of engine compartment)
SHIFT INTERLOCK Ignition Lock Solenoid Wiring Diagram for Hummer H2 2003 List of elements for Ignition Lock Solenoid Wiring Diagram for Hummer H2 2003: 10 Floor shift assembly G200 (on left side of dash, near left kick panel) Hot in acc, run and start I/p fuse block (lower left side of dash) Ign 0 fuse 10a Ignition lock cylinder control actuator (behind ignition switch assembly) Ignition lock cylinder control switch (closed in park) Pnk S218 Underhood fuse block (at left side of engine compartment) Shift Interlock Wiring Diagram for Hummer H2 2003 List of elements for Shift Interlock Wiring Diagram for Hummer H2 2003: 11 A/t shift lock control solenoid B/u lp fuse 20a Btsi fuse 10a Floor shift assembly G203 (lower right side of dash, near right kick panel) Hot in run or start Park lock solenoid Park/ neutral position switch (left side of transmission) Pnk S215 Underhood fuse block (at left side of engine compartment)
STARTING/CHARGING Charging Wiring Diagram for Hummer H2 2003 List of elements for Charging Wiring Diagram for Hummer H2 2003: 23 (not used) Battery Battery cable junction block Battery ind Charge ind ctrl Class 2 serial data Computer data lines Fusible link (8 ga- black) G100 (on left front frame body mount) G102 (at left front side of eng block) Gen field duty cycle sign Generator Hot in on or start Ign 1 volt Ign e fuse 10a Instrument panel cluster Pnk Power distribution system Powertrain control module (on left front of eng compt) Red Splice pack sp205 (on left side of dash, near footwell courtesy lamp, on i/p harn) Starter solenoid Underhood fuse block (at left side of eng compt, near battery) Starting Wiring Diagram for Hummer H2 2003 List of elements for Starting Wiring Diagram for Hummer H2 2003: 39 Acc B12 Batt Battery Battery cable junction block C2 f3 C2 g Class 2 serial data Crank fuse 10a Crank relay Crank request D11 D12 Data link connector (dlc) (partial) (under left side of dash, below steering column) F11 Fusible link (8-ga black) G100 (on left front frame body mount) G102 (at left front side of eng block) Generator Hold- in coil Hot at all times Ign a fuse 40a Ign b fuse 40a Ign e fuse 10a Ignition switch Off P/n Pnk Power distribution system Powertrain control module (on left front of eng compt) Pull- in coil Red Splice pack sp205 (on left side of dash, near footwell courtesy lamp, on i/p harn) Start Start enable rly ctrl Starter motor Starter solenoid Transmission range switch (on right side of transmission) Underhood fuse block (at left side of eng compt, near battery)
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram for Hummer H2 2003 List of elements for Supplemental Restraints Wiring Diagram for Hummer H2 2003: 39 (under left side of dash, below steering column) data link connector Air bag Class 2 (sdm) Class 2 serial data Control Exterior lights system G203 (at lower right side of dash, near right kick panel) G304 (under passenger seat) Ground High control Hot in run or start Ign Ignition 1 voltage Igniton 1 volt Illum Inflatable restraint i/p module Inflatable restraint i/p module disable switch Inflatable restraint sensing & diagnostic module (under left front seat) Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument panel cluster Interior lights system Left inflatable restraint front discrimination sensor (on left front of vehicle, by core support) Low control Low reference Nca Nca a Nca b Off Pnk Right inflatable restraint front discrimination sensor (on right front of vehicle, by core support) S215 (in i/p harn, approximately 5.5 cm from junction of air temperature sensor) Seat belt switch (closed with seat belt buckled) (in driver seat belt buckle) Shorting bar Signal Sir fuse 15a Splice pack sp205 (on left side of dash, near footwell courtesy lamp on i/i harn) Splice pack sp207 (on left side of dash, near left kick panel, on body harn) Underhood fuse block (on left side of eng compt)
TRANSMISSION A/T Wiring Diagram for Hummer H2 2003 List of elements for A/T Wiring Diagram for Hummer H2 2003: 76 (not used) a (top right rear of engine) g103 1-2 shift solenoid 1-2 ss 2-3 shift solenoid 2-3 ss 3-2 shift solenoid 3-2 ss 4wd circuit 4wd low A/t fluid pressure manual valve position switch A12 Automatic transmission B11 B12 Body control module (top left side of dash) Brake fuse 10a Brk sw C12 Cls 2 data Data link connector (under left side of dash) Ect sig Engine coolant temperature sensor (rear of engine block) F10 Fluid pressure switches Fluid temp sensor G203 (lower right side of dash, near kick panel) Gnd Hot at all times Hot in acc, run & start Hot in run Hot in run & start I/p fuse block (lower left side of dash) Ign Ign 0 fuse 10a Ign e fuse 10a Instrument panel cluster (ipc) Malfunction indicator lamp Mil ctrl Park/neutral position switch (left side of transmission) Pc sol hi Pc sol lo Pcm 1 fuse 15a Pcm b fuse 20a Pnk Powertrain control module (left front of engine compt) Press ctrl solenoid Prnd a Prnd b Prnd c Prnd p Prnd321 Red S103 S213 Sens gnd Serial data Splice pack sp205 (left side of dash) Stoplamp switch (top of brake pedal bracket) Tcc pwm Tcc pwm solenoid Tcc sol Tcc solenoid Tft lo ref Tft sens sig Throttle actuator control module (left rear of engine compt) Tow/ haul ind Tow/haul switch Trans fps a Trans fps b Trans fps c Underhood fuse block (left side of engine compt, c2 near the battery) Underhood fuse block (left side of engine compt, near battery) Vehicle speed sensor (right rear side of transmission) Vss hi Vss lo Transfer Case Wiring Diagram for Hummer H2 2003 List of elements for Transfer Case Wiring Diagram for Hummer H2 2003: 50 (chassis harn, near rear diff lock actuator) (left frame body mount, under left rear door) g310 (on rear axle, top of differential housing) rear differential lock actuator (under left side of dash) data link connector +5v ref 4 hi 4 hi ind 4 hi indicator 4 hi lock 4 hi lock indicator 4 lo ind 4 lo lock 4 lo lock indicator 4wd fuse 15a 4wd lo sig A encoder B encoder Battery C encoder Class ii data Encoder logic Encoder low ref Ground Hot at all times Hot in run I/p fuse block (lower left side of dash) Illumination Interior lights system Motor control a Motor control b Nca Neutral ind Neutral indicator P encoder Pnk Powertrain control module (left front of engine compt) R diff lock hi R diff lock ind R diff low ref Rear diff lock indicator Red S375 Shift motor Splice pack sp205 (left side of dash) Switch sig Transfer case Transfer case shift control module (behind headlamp switch) Transfer case shift control switch Trec fuse 30a Underhood fuse block (left side of engine compt, near battery)
WARNING SYSTEMS Warning Systems Wiring Diagram (1 of 2) for Hummer H2 2003 List of elements for Warning Systems Wiring Diagram (1 of 2) for Hummer H2 2003: 58 (at left inner center "b" pillar) g302 (at right inner center "b" pillar) g306 (on left side of dash, near left kick panel) g200 5v reference A12 Accessory voltage Auto B11 B12 Battery Body control module (bcm) (on top left side of dash, above i/p fuse block) D12 Dimmer low reference Dimming input Door ajar switch Drl defeat E11 E12 G200 (on left side of dash, near left kick panel) Ground Ground distribution system Head Headlamp & panel dimmer switch Headlamps on signal Hot at all times Hot in acc & run Hot in acc, run & start Hot in run & start I/p fuse block (on lower left side of dash) I/p relay block (on left side of instrument panel, near left kick panel) Ignition 0 voltage Ignition 1 voltage Ignition key alarm switch Key in ignition switch Left rear door ajar sw Left rear door latch assembly Liftgate ajar switch Panel dimmer switch Park Park brake sw signal Park brake switch (part of park brake assembly) Park lamp on signal Pnk Right rear door ajar sw Right rear door latch assembly S219 (in steering column harness) S310 S390 Serial data Tan Tbc 2a fuse 15a Tbc 2b fuse 15a Tbc 2c fuse 15a Tbc accy fuse 10a Tbc batt fuse 10a Tbc ign 0 fuse 10a Tbc ign 1 fuse 10a Underhood fuse block (at left side of engine compartment, near battery) Warning Systems Wiring Diagram (2 of 2) for Hummer H2 2003 List of elements for Warning Systems Wiring Diagram (2 of 2) for Hummer H2 2003: 46 (at lower right side of liftgate, approximately 6.5 cm from right liftgate ajar switch junction to liftgate harness) s902 (not used) A10 Audio amplifier B10 Data link connector (dlc) (partial) (under left side of dash, below steering column) Door ajar switch Driver door latch assembly Driver door module (ddm) (in driver's door, part of switch assembly) Exterior lights system Front passenger door latch assembly Front passenger door module (fpdm) (behind front passenger's door trim panel, below switch assembly) G410 I/p fuse block (on lower left side of dash) I/p junction block (on lower right side of dash) I/p relay block (on left side of instrument panel, near left kick panel) Ignition Inflatable restraint sensing & diagnostic module (sdm) (under left front seat) Instrument panel cluster (ipc) Ipc logic Left door ajar sw Left liftgate ajar switch Left seat belt sw Left turn Logic Low reference Nca Pnk Powertrain control module (pcm) (on left front of engine compartment) Radio Right liftgate ajar switch Right turn S901 (at lower right side of liftgate, approximately 10 cm from junction of rear wiper motor connector to liftgate harness) Seat belt Seat belt switch Serial data Splice pack sp205 (on left side of dash, near footwell courtesy lamp on i/p harness) Splice pack sp206 (on left side of dash, on i/p harness near steering column in-line connector) Splice pack sp207 (on left side of dash, near left kick panel on body harness) Splice pack sp410 (inside right rear cargo area, at middle of right "d" pillar) Tan Vehicle speed sensor (vss) (on right rear side of transmission) Vehicle speed signal Vss high signal Vss low signal Vss signal
WIPER/WASHER Front Washer/Wiper Wiring Diagram for Hummer H2 2003 List of elements for Front Washer/Wiper Wiring Diagram for Hummer H2 2003: 30 Accessory voltage G200 (behind left side of dash) G203 (behind right side of dash) Ground Hot at all times Hot in run and acc I/p fuse block (lower left side of dash) Lsd Mist Off Pnk Pulse Rear window washer pump control Red S213 S219 Tan Turn signal multi- function switch Underhood fuse block (on left side of engine compt) W/s wash fuse 15a W/s wash relay W/s wiper fuse 25a Wash Windshield washer fluid pump (reversible) (on washer fluid reservoir) Windshield washer pump control Windshield washer relay cntrl Windshield wiper high signal Windshield wiper motor and module (under windshield cowl) Windshield wiper switch signal Windshield wiper/ washer switch Rear Wiper/Washer Wiring Diagram for Hummer H2 2003 List of elements for Rear Wiper/Washer Wiring Diagram for Hummer H2 2003: 18 Ajar Battery G410 (right rear inner side body panel) Hot at all times Hot in run and acc I/p fuse block (on lower left side of dash) Interior lights system Pulse Pulse 1 Rear window washer signal Rear window wiper module (in rear liftgate) Rear window wiper/ washer pulse 2 switch Rr wpr fuse 15a Rr wpr fuse 25a S901 Underhood fuse block (at left side of engine compartment, near battery) Wash Windshield wiper motor and module (under windshield cowl)
