POWER DISTRIBUTION – Hummer H3 2008 – SYSTEM WIRING DIAGRAMS

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Hummer H3 2008

List of elements for Power Distribution Wiring Diagram (1 of 4) for Hummer H3 2008:

• (above left front wheelwell) underhood fuse block
• (approximately 2 cm (0.8 in) before breakout to x125)
• (approximately 24.5 cm (9.6 in) rearward of body pass through in breakout to left door) j264
• (behind right rear quarter trim, near wheelwell) g340
• (not used)
• (on right inner front wheel- well) g106
• (on right inner front wheelwell) g106
• Abs/vses1 -mtr fuse 67 40a
• Abs/vses2 -sol fuse 64 30a
• Amp fuse 38 25a
• Audio amplifier
• Automatic transmission shift control
• Aux pwr 1 fuse 51 20a
• Aux pwr 2 fuse 45 20a
• Battery
• Bcm fuse 10a
• Body control module
• Body control module (bcm)
• Clstr fuse 19 10a
• Cnstr vent fuse 31 10a
• Data link connector (dlc)
• Diode
• Driver door lock/ window switch
• Driver heated seat cushion element
• E-brake fuse 83 30a
• Electronic brake control module (ebcm)
• Engine control module (ecm)
• Evaporative emission (evap) canister vent solenoid valve
• From b aux pwr 1 fuse 51 (diagram 1 of 4)
• From c rear trn/ hazrd fuse 20 (diagram 1 of 4)
• Frt trn/ hazrd/ ctsy mir fuse 56 15a
• Generator
• Htd/seats fuse 1 20a
• Hvac control module
• I/p auxiliary power outlet
• Instrument panel cluster (ipc)
• J143
• J205
• J319 (in passenger seat heater element jumper harness)
• Left rear window switch
• Lt pwr wndw fuse 68 30a
• Megafuse fuse 91 125a
• Nca
• Passenger door lock/ window switch
• Passenger heated seat module
• Pcm cntrl relay
• Pcm-b fuse 25 10a
• Pwr s/roof fuse 57 30a
• Pwr/ lks fuse 8 20a
• Radio
• Rap/ accy relay
• Rdo fuse 13 10a
• Rear auxiliary power outlet
• Rear trn/hazrd fuse 20 20a
• Rear window washer fluid pump
• Rear window wiper module
• Rear window wiper/ washer switch
• Rear wpr switch/pump fuse 16 15a
• Rear/wpr mtr fuse 15 15a
• Red
• Right rear window switch
• Rt pwr wndw fuse 63 30a
• S/roof frt/wpr fuse 9 15a
• Sdars fuse 50 10a
• Spo fuse 10 10a
• Starter
• Stop fuse 54 15a
• Stop lamp switch
• Strtr fuse 30a
• Sunroof module
• Sunroof motor
• Tccm fuse 12 30a
• To onstar fuse (diagram 4 of 4)
• To pwr/ lock fuse 8 (diagram 1 of 4)
• To pwr/trn relay 81 (diagram 2 of 4)
• To rap/accy relay 88 (diagram 1 of 4)
• Trailer connector
• Transfer case shift control module
• Trlr b+ fuse 84 30a
• Turn signal/multi- function switch
• Underhood fuse block (above left front wheelwell)
• W/ electric sun, glass & sliding roof
• W/ hd truck trailer wiring harness
• W/ premium audio branded & amplifier speaker system
• Windshield wiper/washer switch

Power Distribution Wiring Diagram (2 of 4) for Hummer H3 2008

List of elements for Power Distribution Wiring Diagram (2 of 4) for Hummer H3 2008:

• (in driver seat harness, approximately 28.5 cm (11.2 in) back from x307) j312
• (in passenger seat harness, approximately 10 cm (3.9 in) before breakout to seat adjuster & lumbar adjuster/heater switches) j341
• 1-2 shift solenoid (ss) valve
• 2-3 shift solenoid (ss) valve
• 3-2 shift solenoid (ss) valve
• A/t
• Accessory switch
• Air bag fuse 27 10a
• Air pump fuse 62 60a
• Air pump rly fuse 60a
• Cruise control release switch
• Cruise/misc fuse 35 10a
• Driver seat adjuster switch
• Drl fuse 39 10a
• Drl relay
• Fog/lp relay
• From fuel/ e pump relay 66 (diagram 2 of 4)
• From rap/ d accy relay 88 (diagram 1 of 4)
• Frt/wiper fuse 25a
• Fuel/ pump relay
• G105 (on left inner front wheelwell, behind battery)
• Generator battery control module
• Hdlp relay
• Horn relay
• If equipped
• Inflatable restraint front passenger presence system (pps) sensor
• Inflatable restraint sensing & diagnostic module (sdm)
• Inflatable restraint vehicle rollover sensor
• Inside rearview mirror
• J133
• On/off wiper relay
• Passenger seat adjuster switch
• Passenger seat lumbar adjuster switch
• Pnk
• Power seat fuse holder
• Pwr seats fuse 61 40a
• Pwr/trn relay
• Rearview camera image display module
• Red
• Run/ crank relay
• Rvc pwr fuse 7 10a
• Rvc vsense+ fuse 32 10a
• Seat circuit breaker 25a
• Secondary air injection (air) pump relay
• Spare 6 fuse 18 10a
• To air cmprsr fuse 11 (diagram 3 of 4)
• To bck/up fuse 28 (diagram 3 of 4)
• To body control module (diagram 4 of 4)
• To run/ crank relay 78 (diagram 2 of 4)
• Torque converter clutch (tcc) solenoid valve
• Torque converter clutch pulse width modulation (tcc pwm) solenoid valve
• Trans fuse 34 10a
• Transmission control module (tcm)
• Turn signal/ multi-function switch
• Underhood fuse block (above left front wheelwell)
• W/ air injection electric reactor system

Power Distribution Wiring Diagram (3 of 4) for Hummer H3 2008

List of elements for Power Distribution Wiring Diagram (3 of 4) for Hummer H3 2008:

• (above left front wheelwell) underhood fuse block
• (approximately 15 cm (6 in) from x203) j220
• (approximately 5 cm (0.2 in) before breakout to ebcm) j141
• (in dealer installed off road harness, 1.5 cm (5.9 in) from roof lamps relay, near master cylinder) j101
• (in engine compartment harness, near grille lamps relay, by master cylinder) j103
• (not used)
• 3.7l
• 5.3l
• A/c clutch diode 90
• A/c clutch fuse 48 10a
• A/c clutch relay
• A/c compressor clutch
• A/t
• A26
• Abs/vses fuse 29 10a
• Accessory switch
• Air cmprsr fuse 11 25a
• Air sol fuse 44 15a
• Air sol relay
• Back-up lamp switch
• Bck/up fuse 28 15a
• Blower motor
• Body control module (bcm)
• Driver seat lumbar adjuster switch
• Electronic brake control module (ebcm)
• Eng cntrl sys fuse 22 15a
• Engine control module (ecm)
• Evaporative emission (evap) canister purge solenoid valve
• From i ign1 fuse 33 (diagram 3 of 4)
• From injector fuse 23 (diagram 3 of 4)
• From run/ crank relay 78 (diagram 2 of 4)
• From trans f fuse 34 (diagram 2 of 4)
• Fuel injector
• Grille guard fuse 2 20a
• High speed blower motor relay
• Hvac blwr fuse 82 30a
• Hvac cntrl hd fuse 59 10a
• Hvac control module
• Hvac relay
• Ign1 fuse 33 15a
• Ignition coil/ module
• Inj fuse 23 15a
• J111
• J113
• J116
• J118
• M/t
• Mass air flow (maf)/ intake air temperature (iat) sensor
• Nca
• Off road grill lamp relay (dealer installed)
• Off road roof lamp relay (dealer installed)
• Park/ neutral position (pnp) switch
• Passenger seat lumbar adjuster switch
• Pcm i fuse 21 10a
• Pnk
• Pwr htr switch fuse 53 10a
• Red
• Roof lp fuse 4 20a
• Rr defog relay
• Steering wheel position sensor
• Tccm switch fuse 58 10a
• To a/c clutch relay 76 (diagram 3 of 4)
• To batt ign sw fuse 5 (diagram 4 of 4)
• To eng cntrl sys fuse 22 (diagram 3 of 4)
• Underhood fuse block (above left front wheelwell)
• Vses/ abs fuse 52 10a
• W/ active brake control
• Yaw & lateral accelerometer sensor

Power Distribution Wiring Diagram (4 of 4) for Hummer H3 2008

List of elements for Power Distribution Wiring Diagram (4 of 4) for Hummer H3 2008:

• (in body harness under left door sill plate, approximately 41 cm (16.1 in) rearward of body pass through in main bundle) j309
• (in body harness, approximately 6 cm (2.4 in) to right of stop lamp switch breakout in main harness) j209
• (in forward lamp harness, approximately 43 cm (17 in) from x115) j109
• 10a
• 5-volts reference
• A14
• A48
• Acc
• Accessory voltage
• Batt ign switch fuse 5 10a
• Body control module (bcm)
• Body control module (bcm) (behind right front kick panel)
• Digital radio receiver
• Driver door lock/ window switch
• Engine control module (ecm)
• From battery a (diagram 1 of 4)
• From rr k defog relay 71 (diagram 3 of 4)
• From run/crank relay 78 (diagram 2 of 4)
• Frt/prk fuse 43 10a
• Ign
• Ignition switch
• J106
• J200
• J201
• J234 (in i/p harness center dash area, approximately 5 cm (2 in) left of breakouts to hvac in main bundle)
• Left front marker lamp
• Left park/turn signal lamp
• Left rear window switch
• Left roof marker lamp
• Left tail/stop & turn signal lamp
• Lh prk fuse 37 10a
• License lamp
• Off
• Onstar fuse
• Passenger door lock/ window switch
• Prk/ lp relay
• Red
• Right front marker lamp
• Right park/turn signal lamp
• Right rear window switch
• Right tail/stop & turn signal lamp
• Rr prk fuse 49 10a
• Run
• Run/ crank voltage
• Start
• Theft deterrent module (tdm)
• Trailer connector
• Trlr fuse 55 10a
• Underhood fuse block (above left front wheelwell)
• Vehicle communication interface module (vcim)
• W/ digital audio
• W/ roof mounted marker lamp
• X1 b7
• X2 a42