Hummer H3 Alpha 2010 - 2010 GENERAL MOTORS H3 & H3T

Hummer H3 Alpha 2010 - BUZZERS, RELAYS & TIMERS

Hummer H3 Alpha 2010 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C CLUTCH Relay	In underhood fuse block. See Fig. 54.
AIR SOL Relay	In underhood fuse block. See Fig. 54.
FOG/LP Relay	In underhood fuse block. See Fig. 54.
FUEL/PUMP Relay	In underhood fuse block. See Fig. 54.
Grille Lamps Relay	Below side air inlet cover.
HDLP Relay	In underhood fuse block. See Fig. 54.
High Speed Blower Motor Relay	Attached to blower motor case. See Fig. 60.
HI/LO BEAM Relay	In underhood fuse block. See Fig. 54.
HI/LOW WPR Relay	In underhood fuse block. See Fig. 54.
HORN Relay	In underhood fuse block. See Fig. 54.
HVAC Relay	In underhood fuse block. See Fig. 54.
ON/OFF WPR Relay	In underhood fuse block. See Fig. 54.
PCM CNTRL Relay	In underhood fuse block. See Fig. 54.
PRK/LP Relay	In underhood fuse block. See Fig. 54.
PWR/TRN Relay	In underhood fuse block. See Fig. 54.
RAP/ACCY Relay	In underhood fuse block. See Fig. 54.
Roof Lamps Relay	Below side air inlet cover.
RR DEFOG Relay	In underhood fuse block. See Fig. 54.
RUN/CRNK Relay	In underhood fuse block. See Fig. 54.
Secondary Air Injection (AIR) Pump Relay	Top of engine, at rear of intake.
SPARE-1 Relay	In underhood fuse block. See Fig. 54.
SPARE-2 Relay	In underhood fuse block. See Fig. 54.

Hummer H3 Alpha 2010 - CIRCUIT PROTECTION DEVICES

Hummer H3 Alpha 2010 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Underhood Fuse Block	Above left front wheelwell. See Fig. 13.

Hummer H3 Alpha 2010 - CONTROL UNITS

Hummer H3 Alpha 2010 CONTROL UNITS LOCATION

Component	Location
Automatic Transmission Floor Shift Control	Beneath center console. See Fig. 27.
Body Control Module (BCM) (1)	Behind right front kick panel. See Fig. 8.
Electronic Brake Control Module (EBCM)	Left of master cylinder. See Fig. 3.
Engine Control Module (ECM)	Right rear corner of engine compartment. See Fig. 56.
Frontview Camera Image Display Module	Mounted to roof above ISRVM.
Generator Battery Control Module	Left front of engine compartment, near battery. See Fig. 56.
Heated Seat Module - Driver	In driver seat bottom. See Fig. 70.
Heated Seat Module - Passenger (14)	In passenger seat bottom. See Fig. 41.
HVAC Module	Beneath radio. See Fig. 60.
Inflatable Restraint I/P Module	Above dash compartment. See Fig. 1.
Inflatable Restraint Passenger Presence System (PPS) Module (10)	On underside of cushion. See Fig. 41.
Inflatable Restraint Roof Rail Module - Left	Upper left "B" pillar. See Fig. 26.
Inflatable Restraint Roof Rail Module - Right	Upper right "B" pillar. See Fig. 26.
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Beneath lower console. See Fig. 26.
Inflatable Restraint Steering Wheel Module	In steering column. See Fig. 1.
Powertrain Control Module (PCM)	At left front side of engine compartment. See Fig. 13.
Transfer Case Shift Control Module	Behind glove box. See Fig. 29.
Vehicle Communication Interface Module (VCIM)	Center of dash below HVAC control head. See Fig. 22.

Hummer H3 Alpha 2010 - MOTORS

Hummer H3 Alpha 2010 MOTORS LOCATION

Component	Location
Air Temperature Actuator - Left	Mounted to left side of HVAC Module assembly. See Fig. 60.
Air Temperature Actuator - Right	Mounted to left side of HVAC Module assembly. See Fig. 60.
Blower Motor	Below right side of dash. See Fig. 60.
Door Lock Actuator - Driver	In center rear of driver door, near door latch. See Fig. 65.
Door Lock Actuator - Endgate (1)	On right side of endgate. See Fig. 12.
Door Lock Actuator - LR (5)	In center rear of left rear door, near door latch. See Fig. 11.
Door Lock Actuator - Passenger (3)	In center rear of passenger door, near door latch. See Fig. 10.
Door Lock Actuator - RR	In center rear of right rear door, near door latch. See Fig. 11.
Fuel Pump & Sender Assembly	Mounted on top of fuel tank. See Fig. 16.
Headlamp Leveling Actuator - Left/Right	Behind respective headlight assembly.
Ignition Lock Cylinder Control Actuator (4)	On upper right side of steering column. See Fig. 25.
Lumbar Pump Motor - Driver (2)	In driver seat. See Fig. 40.
Lumbar Pump Motor - Passenger (12)	In passenger seat. See Fig. 41.
Mode Actuator	On side of heater box. See Fig. 60.
Rear Differential Lock Actuator	Mounted to center of rear axle. See Fig. 44.
Rear Window Washer Fluid Pump	In right rear engine compartment area. See Fig. 30.
Rear Window Wiper Motor (2)	Center of endgate. See Fig. 12.
Recirculation Actuator	Upper right corner of heater case. See Fig. 60.
Seat Motors - Driver (11)	Under driver seat. See Fig. 40.
Seat Motors - Passenger (15)	Under passenger seat. See Fig. 41.
Secondary Air Injection (AIR) Pump	Mounted to right front side of radiator support.
Starter Motor (3.7L)	Mounted to left side of engine. See Fig. 61.
Starter Motor (5.3L)	Right side of engine, below exhaust. See Fig. 57.
Sunroof Motor (1)	At front of sunroof module. See Fig. 19.
Transfer Case Encoder Motor	Part of transfer case. See Fig. 24.
Window Motor - Driver (5)	Attached to interior of left front door. See Fig. 9.
Window Motor - LR (4)	Attached to interior of left rear door. See Fig. 11.
Window Motor - Passenger (1)	Attached to interior of right front door. See Fig. 10.
Window Motor - RR	Attached to interior of right rear door. See Fig. 39.
Windshield Washer Fluid Pump	Mounted on fluid reservoir. See Fig. 30.
Windshield Wiper Motor	Under center of front cowling. See Fig. 30.

Hummer H3 Alpha 2010 - SENDING UNITS & SENSORS

Hummer H3 Alpha 2010 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Position (APP) Sensor	On accelerator pedal bracket. See Fig. 2.
A/C Refrigerant Pressure Sensor	On high pressure hose connection to compressor. See Fig. 20.
Ambient Air Temperature Sensor	Attached to front center of radiator support. See Fig. 20.
Ambient Light Sensor	Right side of dash upper trim panel. See Fig. 1.
Automatic Transmission Input Shaft Speed (ISS) Sensor	In transmission. See Fig. 5.
Camshaft Position (CMP) Sensor - Exhaust (3.7L)	Top right front of engine. See Fig. 15.
Camshaft Position (CMP) Sensor - Intake (3.7)	Top front left of engine. See Fig. 15.
Camshaft Position (CMP) Sensor (5.3L)	Front of engine above crank pulley. See Fig. 55.
Crankshaft Position (CKP) Sensor (3.7L)	Left rear of engine block, below starter. See Fig. 15.
Crankshaft Position (CKP) Sensor (5.3L)	Mounted to right rear of engine block behind starter motor. See Fig. 57.
Engine Coolant Temperature (ECT) Sensor (3.7L)	Front left of engine. See Fig. 69.
Engine Coolant Temperature (ECT) Sensor (5.3L)	Left side of engine. See Fig. 62.
Engine Oil Pressure (EOP) Sensor	Top of engine near rear of intake manifold.
Evaporator Temperature Sensor	Behind right lower dash. See Fig. 60.
Fuel Tank Pressure (FTP) Sensor	Top of fuel pump & sender assembly. See Fig. 16.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (5.3L)	Left side exhaust, before catalytic converter. See Fig. 64.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (5.3L)	Right side exhaust, before catalytic converter.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (5.3L)	Left side exhaust, after catalytic converter.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (5.3L)	Right side exhaust, after catalytic converter.
Heated Oxygen Sensor (HO2S) 1 (3.7)	On exhaust manifold on left side of engine. See Fig. 56.
Heated Oxygen Sensor (HO2S) 2 (3.7)	In exhaust pipe, adjacent to transmission. See Fig. 56.
Inflatable Restraint Front End Sensor - Left	Left lower radiator support. See Fig. 20.
Inflatable Restraint Front End Sensor - Right	Right lower radiator support. See Fig. 20.
Inflatable Restraint Passenger Presence System (PPS) Sensor (1)	In front passenger seat cushion. See Fig. 41.
Inflatable Restraint Passenger Seat Belt Tension Sensor	Part of seat belt buckle.
Inflatable Restraint Seat Position Sensor (SPS) - Left (10)	On driver seat track. See Fig. 40.
Inflatable Restraint Seat Position Sensor (SPS) - Right (11)	On driver seat track. See Fig. 41.
Inflatable Restraint Side Impact Sensor (SIS) - Left (11)	In left front door. See Fig. 9.
Inflatable Restraint Side Impact Sensor (SIS) - Right (2)	In right front door. See Fig. 10.
Inflatable Restraint Vehicle Rollover Sensor	Under center console. See Fig. 3.
Input Speed Sensor (ISS) Assembly	On transmission assembly. See Fig. 5.
Knock Sensor (KS) Bank 2	Below intake manifold, near front of engine. See Fig. 61.
Knock Sensor (KS) - 1 (5.3L)	Lower left side of engine. See Fig. 62.
Knock Sensor (KS) - 2 (5.3L)	Lower right side of engine. See Fig. 57.
Longitudinal Accelerometer Sensor	Under driver seat, near C307. See Fig. 42.
Manifold Absolute Pressure (MAP) Sensor (3.7L) (1)	At top right side rear of engine, on intake manifold. See Fig. 68.
Manifold Absolute Pressure (MAP) Sensor (5.3L)	Top of engine, above intake manifold. See Fig. 57.
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor	Between air cleaner & throttle body. See Fig. 13.
Steering Wheel Position Sensor (5)	Near base of steering column. See Fig. 25.
Tire Pressure Monitor Sensors	In respective tire. See Fig. 28.
Vehicle Speed Sensor (VSS)	Left rear of transfer case. See Fig. 5.
Wheel Speed Sensor (WSS) - LF	Attached to left front wheel hub. See Fig. 4.
Wheel Speed Sensor (WSS) - LR	Attached to left side of rear axle. See Fig. 4.
Wheel Speed Sensor (WSS) - RF	Attached to right front wheel hub. See Fig. 4.
Wheel Speed Sensor (WSS) - RR	Attached to right side of rear axle. See Fig. 4.
Yaw Rate/Lateral & Longitudinal Accelerometer Sensor	Under driver seat near X307. See Fig. 3.

Hummer H3 Alpha 2010 - SOLENOIDS & SOLENOID VALVES

Hummer H3 Alpha 2010 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch	Part of A/C Compressor. See Fig. 57.
A/C Compressor Clutch	Part of A/C compressor. See Fig. 20.
A/T Shift Lock Control Solenoid	Part of automatic transmission floor shift control. See Fig. 27.
Camshaft Position (CMP) Actuator Solenoid (Bank 1 Exhaust) (6)	Right front of cylinder head. See Fig. 14.
Differential Lock Actuator	On rear axle. See Fig. 67.
Evaporative Emission (EVAP) Canister Purge Solenoid Valve (3.7L)	Below intake, in back of alternator. See Fig. 15.
Evaporative Emission (EVAP) Canister Purge Solenoid Valve (5.3L)	Top of intake manifold near rear of throttle body.
Evaporative Emission (EVAP) Canister Vent Solenoid Valve	Above spare tire. See Fig. 16.
Fuel Injector 1 (3.7L)	Attached to fuel rail at No. 1 cylinder. See Fig. 64.
Fuel Injector 1 (5.3L)	Upper left side of engine, above number 1 cylinder. See Fig. 63.
Fuel Injector 2 (3.7L)	Attached to fuel rail at No. 2 cylinder. See Fig. 64.
Fuel Injector 2 (5.3L)	Upper right side of engine, above number 2 cylinder. See Fig. 63.
Fuel Injector 3 (3.7L)	Attached to fuel rail at No. 3 cylinder. See Fig. 64.
Fuel Injector 3 (5.3L)	Upper left side of engine, above number 3 cylinder. See Fig. 63.
Fuel Injector 4 (3.7L)	Attached to fuel rail at No. 4 cylinder. See Fig. 64.
Fuel Injector 4 (5.3L)	Upper right side of engine, above number 4 cylinder. See Fig. 63.
Fuel Injector 5 (3.7L)	Attached to fuel rail at No. 5 cylinder. See Fig. 64.
Fuel Injector 5 (5.3L)	Upper left side of engine, above number 5 cylinder. See Fig. 63.
Fuel Injector 6 (5.3L)	Upper right side of engine, above number 6 cylinder. See Fig. 63.
Fuel Injector 7 (5.3L)	Upper left side of engine, above number 7 cylinder. See Fig. 63.
Fuel Injector 8 (5.3L)	Upper right side of engine, above number 8 cylinder. See Fig. 63.
Pressure Control (PC) Solenoid Valve	In automatic transmission. See Fig. 5.
Secondary Air Injection (AIR) Solenoid	Right side of engine, above exhaust.
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve	In automatic transmission. See Fig. 5.
Torque Converter Clutch (TCC) Solenoid Valve	In automatic transmission. See Fig. 5.
1-2 Shift Solenoid (SS) Valve	In automatic transmission. See Fig. 5.
2-3 Shift Solenoid (SS) Valve	In automatic transmission. See Fig. 5.
3-2 Shift Solenoid (SS) Valve	In automatic transmission. See Fig. 5.

Hummer H3 Alpha 2010 - SWITCHES

Hummer H3 Alpha 2010 SWITCHES LOCATION

Component	Location
Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch	In automatic transmission. See Fig. 5.
Backup Lamp Switch	On top of transmission. See Fig. 24.
Brake Fluid Level Switch	On left side of brake fluid reservoir. See Fig. 3.
Clutch Release Switch	At top of clutch pedal assembly. See Fig. 18.
Clutch Start Switch	At top of clutch pedal assembly. See Fig. 2.
Door Ajar Switch - Driver	In lower left "B" pillar. See Fig. 66.
Door Ajar Switch - LR	In lower left "C" pillar. See Fig. 66.
Door Ajar Switch - Passenger	In lower right "B" pillar. See Fig. 66.
Door Ajar Switch - RR	In lower right "C" pillar. See Fig. 66.
Endgate Ajar Switch	In right "D" pillar. See Fig. 23.
Engine Oil Pressure (EOP) Switch (7)	Above oil filter. See Fig. 14.
Hood Ajar Switch	Part of hood latch assembly.
Ignition Switch (8)	Bottom center of steering column. See Fig. 25.
Park Brake Switch	Left lower side of dash. See Fig. 2.
Park/Neutral Position (PNP) Switch	Left side of automatic transmission. See Fig. 43.
Stop Lamp Switch	Above brake pedal assembly. See Fig. 2.
TCC Brake/Cruise Release Switch	Top of brake pedal assembly. See Fig. 2.

Hummer H3 Alpha 2010 - MISCELLANEOUS

Hummer H3 Alpha 2010 MISCELLANEOUS LOCATION

Component	Location
Audio Amplifier (H3)	Mounted next to subwoofer. See Fig. 68.
Audio Amplifier (H3T)	Mounted next to subwoofer. See Fig. 58.
Battery	Left side of engine compartment. See Fig. 38.
Blower Motor Resistor Assembly	Attached to bottom of blower. See Fig. 60.
Blunt Cut - Frontview Camera Provision	Taped to park brake switch, behind left side of dash.
Blunt Cut - Ground Provision	Left side of engine compartment, below G105.
Blunt Cut - Off Road Grille Lamp Provision	Taped to park brake switch, behind left side of dash.
Blunt Cut - Off Road Grille Lamp Switch Provision	Taped to park brake switch, behind left side of dash.
Blunt Cut - Off Road Roof Lamp Provision	Left side of engine compartment, below G105.
Blunt Cut - Off Road Roof Lamp Switch Provision	Taped to park brake switch, behind left side of dash.
Blunt Cut - Trailer Control Module Provision	Taped to left I/P courtesy lamp breakout.
Blunt Cut - Trailer Provision	Under vehicle, taped to rear of chassis harness near X420.
Cellular Microphone	Mounted in left front headliner. See Fig. 7.
Cellular, Navigation & Digital Radio Antenna	Mounted to right front roof area. See Fig. 6.
Data Link Connector (DLC)	Left side of dash. See Fig. 22.
Digital Radio Receiver	Right side of dash. See Fig. 22.
Generator (3.7L)	At left front of engine. See Fig. 65.
Generator (5.3L)	Front of engine. See Fig. 62.
Global Positioning System (GPS) Antenna	Behind right dash cluster.
Heater Element Seat Back - Driver (1)	In driver seat back. See Fig. 40.
Heater Element Seat Back - Passenger (13)	In passenger seat back. See Fig. 41.
Heater Element Seat Cushion - Driver (3)	In driver seat bottom. See Fig. 40.
Heater Element Seat Cushion - Passenger (2)	In passenger seat bottom. See Fig. 41.
Horn (5)	Front of vehicle, behind grill. See Fig. 21.
Ignition Coil 1 (3.7L)	In center front of cam cover at No. 1 cylinder. See Fig. 61.
Ignition Coil 1 (5.3L)	Top of cylinder head, above cylinder #1. See Fig. 62.
Ignition Coil 2 (3.7L)	In center front of cam cover at No. 2 cylinder. See Fig. 61.
Ignition Coil 2 (5.3L)	Top of cylinder head, above cylinder #2. See Fig. 57.
Ignition Coil 3 (3.7L)	In center front of cam cover at No. 3 cylinder. See Fig. 61.
Ignition Coil 3 (5.3L)	Top of cylinder head, above cylinder #3. See Fig. 62.
Ignition Coil 4 (3.7L)	In center front of cam cover at No. 4 cylinder. See Fig. 61.
Ignition Coil 4 (5.3L)	Top of cylinder head, above cylinder #4. See Fig. 57.
Ignition Coil 5 (3.7L)	In center front of cam cover at No. 5 cylinder. See Fig. 61.
Ignition Coil 5 (5.3L)	Top of cylinder head, above cylinder #5. See Fig. 62.
Ignition Coil 6 (5.3L)	Top of cylinder head, above cylinder #6. See Fig. 57.
Ignition Coil 7 (5.3L)	Top of cylinder head, above cylinder #7. See Fig. 62.
Ignition Coil 8 (5.3L)	Top of cylinder head, above cylinder #8. See Fig. 57.
Inflatable Restraint Steering Wheel Module Coil (1)	Mounted to steering wheel. See Fig. 25.
Rearview Camera	Center of rear bumper.
Seat Belt Pretensioner - LF	At left inner "B" pillar. See Fig. 26.
Seat Belt Pretensioner - RF	At right inner "B" pillar. See Fig. 26.
Seat Belt Switch - Left	Part of seat belt buckle (Driver).
Seat Belt Switch - Right	Part of seat belt buckle (Passenger).
Throttle Body (2)	Top of engine, mounted on upper air intake manifold. See Fig. 14.
Throttle Body (5.3L)	Top of engine. See Fig. 55.
Trailer Connector	Mounted on left side of trailer receiver, rear of vehicle. See Fig. 45.

Hummer H3 Alpha 2010 - CONNECTORS

Hummer H3 Alpha 2010 CONNECTORS LOCATION

Component	Location
X101 (Black, 6 Pin) (11)	Rear center of engine. See Fig. 14.
X102 (Black, 16 Pin)	Right side of engine compartment. See Fig. 71.
X103 (5.3L) (Black, 5 Pin)	Engine harness. See Fig. 59.
X111 (Black, 8 Pin)	Left side of engine. See Fig. 71.
X113 (Black, 8 Pin)	Right side of engine. See Fig. 71.
X115 (Black, 16 Pin) (8)	Right of left front fog lamp. See Fig. 21.
X116 (Black, 8 Pin) (9)	Behind left headlamp assembly. See Fig. 21.
X117 (Black, 8 Pin) (6)	Behind right headlamp assembly. See Fig. 21.
X125 (Black, 16 Pin)	Left side of engine compartment. See Fig. 71.
X130 (Black, 2 Pin) (10)	In body harness to battery cable harness. See Fig. 34.
X150 (Black, 40 Pin) (11)	Behind battery next to EBCM. See Fig. 34.
X155 (Black, 4 Pin) (12)	Next to EBCM. See Fig. 34.
X175 (Black, 20 Pin)	Right side of transmission. See Fig. 71.
X200 (Black, 40 Pin) (5)	Behind left of dash. See Fig. 46.
X201 (Light Gray, 22 Pin) (3)	Base of steering column. See Fig. 46.
X203 (White, 8 Pin) (3)	Near blower motor. See Fig. 33.
X204 (Black, 40 Pin) (4)	Behind right kick panel. See Fig. 8.
X205 (White, 40 Pin) (5)	Near blower motor. See Fig. 33.
X206 (Black, 8 Pin)	Base of right "A" pillar.
X207 (White, 12 Pin) (6)	Behind left of dash. See Fig. 46.
X208 (Yellow, 4 Pin) (4)	Behind left of dash. See Fig. 46.
X270 (Black, 6 Pin)	Behind center of dash.
X271 (Black, 2 Pin)	Behind center of dash.
X275 (Yellow, 4 Pin) (7)	Next to X201. See Fig. 25.
X307 (White, 8 Pin) (7)	Under driver seat. See Fig. 40.
X308 (White, 4 Pin) (8)	In body harness to driver seat belt switch jumper harness. See Fig. 40.
X315 (White, 12 Pin) (6)	Under passenger seat. See Fig. 41.
X318 (Black, 4 Pin) (7)	In passenger seat bottom. See Fig. 41.
X319 (Black, 4 Pin)	In driver seat bottom.
X320 (W/O Seat Heater) (White, 4 Pin) (5)	In body harness to passenger seat belt switch jumper harness. See Fig. 41.
X320 (W/Seat Heater) (White, 8 Pin) (5)	In body harness to passenger seat belt switch jumper harness. See Fig. 41.
X321 (Black, 2 Pin)	Under driver's seat.
X322 (Black, 2 Pin)	Under passenger's seat.
X323 (Black, 4 Pin)	Top of left "B" pillar.
X324 (Black, 4 Pin)	Top of right "B" pillar.
X330 (White, 8 Pin) (2)	Behind upper left "A" pillar trim panel. See Fig. 19.
X335 (White, 6 Pin) (4)	Behind upper left "A" pillar trim panel. See Fig. 19.
X350 (White, 6 Pin) (1)	Behind right lower "A" pillar trim. See Fig. 47.
X370 (White, 12 Pin) (8)	In left rear passenger door. See Fig. 48.
X371 (Black, 6 Pin)	Under driver's seat.
X372 (Black, 6 Pin)	Under driver's seat.
X373 (Black, 6 Pin)	Under driver's seat.
X374 (Black, 6 Pin)	Under driver's seat.
X380 (White, 12 Pin) (2)	In right rear passenger door. See Fig. 48.
X410 (H3T) (Black, 8 Pin)	Outside of right rear frame rail.
X410 (SUV) (Black, 4 Pin) (4)	Behind right rear quarter trim panel near "D" pillar. See Fig. 49.
X420 (W/Heavy Duty Harness) (Black, 16 Pin)	Rearward of left wheelwell.
X420 (W/O Heavy Duty Harness) (Black, 4 Pin)	Rearward of left wheelwell.
X430 (H3T) (White, 8 Pin)	Outside left rear frame rail.
X430 (SUV) (White, 4 Pin) (1)	Behind left rear quarter trim panel near "D" pillar. See Fig. 49.
X450 (White, 12 Pin) (8)	Behind left rear quarter trim panel near "D" pillar. See Fig. 12.
X460 (Black, 2 Pin)	License lamp harness to rear fog lamp harness.
X500 (White, 30 Pin) (4)	In driver door. See Fig. 9.
X510 (White, 8 Pin) (3)	Inside middle front of drivers door, near "A" pillar. See Fig. 9.
X600 (White, 30 Pin) (2)	Body harness to passenger door harness, in passenger door. See Fig. 47.
X700 (White, 12 Pin)	Left "B" pillar body harness to rear door harness.
X800 (White, 12 Pin)	Right "B" pillar body harness to left rear door harness.
X901 (White, 12 Pin) (7)	Left middle of end gate near pass-through. See Fig. 12.
X905 (White, 12 Pin)	"D" pillar body harness to endgate harness.

Hummer H3 Alpha 2010 - GROUNDS

Hummer H3 Alpha 2010 GROUNDS LOCATION

Component	Location
G100	In engine compartment, mounted to left front inner fender, behind battery. See Fig. 17.
G102 (3.7L)	On lower left side of engine block, rearward of G103. See Fig. 15.
G102 (5.3L)	On engine block, below left cylinder head.
G103	On lower left side of engine block, forward of G102. See Fig. 15.
G104	Left side of engine block, in front of starter. See Fig. 51.
G105	On left inner front wheelwell, behind battery. See Fig. 31.
G106	On right inner front wheelwell. See Fig. 31.
G110	Left side of engine block, forward of G103. See Fig. 51.
G120	On left lower inner wheelwell, near engine mount. See Fig. 51.
G300	Under driver seat carpet, on floor board. See Fig. 31.
G310	Mounted under left side of passenger seat. See Fig. 31.
G320	Under rear of middle console carpet, on floor board. See Fig. 31.
G340 (SUV) (3)	Behind right rear quarter trim, near wheelwell. See Fig. 49.
G340 (Truck)	Base of right "C" pillar. See Fig. 72.
G345 (SUV) (2)	Behind left rear quarter trim, near wheelwell. See Fig. 49.
G345 (Truck)	Base of right "C" pillar. See Fig. 72.
G350 (SUV) (2)	Behind left rear quarter trim, near wheelwell. See Fig. 49.
G350 (Truck)	Base of right "C" pillar.
G420	Mounted to left side of rear cross member, near X420. See Fig. 50.

Hummer H3 Alpha 2010 - SPLICES

Hummer H3 Alpha 2010 SPLICES LOCATION

Component	Location
J101	In dealer installed off road harness, 1.5 cm from roof lamps relay, near master cylinder.
J102	In dealer installed off road harness, 1.5 cm from roof lamps relay, near master cylinder.
J103	In engine compartment harness, near grille lamps relay, by master cylinder.
J104	In dealer installed grille lamps off road harness, near left side grille lamp connector.
J105	In dealer installed grille lamps off road harness, near left side grille lamp connector.
J106	Engine harness, on breakout to X130.
J107	Off road grille lamp harness, between fuse block underhood & off road grille lamp relay.
J109 (2)	In forward lamp harness, approximately 43 cm from X115. See Fig. 21.
J110 (2)	In body harness near EBCM, approximately 7.5 cm back from EBCM. See Fig. 34.
J111 (5.3L)	Engine harness, 5 cm from breakout to fuel injector 1. See Fig. 71.
J112 (3)	In forward lamp harness, near left upper radiator support, approximately 48.5 cm from X115. See Fig. 21.
J113	Left engine coil harness. See Fig. 71.
J114 (5.3L)	Engine left coil harness. See Fig. 59.
J115 (5.3L)	In engine harness.
J116 (5.3L)	Right engine coil harness.
J117 (5.3L)	Right engine coil harness.
J118	In forward lamp harness, 5 cm from breakout to X103.
J119	In auxiliary power relay jumper harness.
J120 (4)	In forward lamp harness, near center point of top of radiator, approximately 58 cm from X115. See Fig. 21.
J121	In forward lighting harness.
J123	In auxiliary power relay jumper harness.
J124	In auxiliary power relay jumper harness.
J125	Inside auxiliary power relay jumper harness.
J126	Auxiliary power relay jumper harness, 12 cm before breakout to X104.
J127	Front lighting harness, near breakout to outside air temperature sensor.
J128	In left ignition coil harness.
J129	In right ignition coil harness.
J130	In battery cable harness on breakout to X130.
J133	In automatic transmission, between fluid temperature sensor & internal mode switch.
J134 (7)	In forward lamp harness, approximately 15 cm from X115. See Fig. 21.
J141 (3)	In body harness, approximately 5 cm before breakout to EBCM. See Fig. 34.
J143 (5)	In body harness, approximately 2 cm before breakout to X125. See Fig. 34.
J150	Body harness, 8 cm forward of breakout to X150.
J154	Engine harness, 2.5 cm from breakout to fuel injector 1.
J156	Body harness, 35 cm from X115.
J157	Body harness, below G105.
J158	Body harness, in breakout to front view camera power harness.
J159	Body harness, in breakout to front view camera power harness.
J185 (1)	In forward lamp harness, approximately 25 cm from X115. See Fig. 21.
J200	In steering column harness, between X200 & theft deterrent module.
J201	In steering column harness, between X201 & theft deterrent module.
J202	Body harness, on left "A" pillar breakout, 25 cm from main bundle.
J203	Body harness, on left "A" pillar breakout, 20 cm from main bundle.
J205 (3)	In I/P harness, approximately 5 cm right of breakout to left footwell lamp. See Fig. 32.
J206 (5)	In I/P harness, approximately 7 cm right of breakout to right footwell lamp. See Fig. 32.
J209 (13)	In body harness, approximately 6 cm to right of stop lamp switch breakout in main harness. See Fig. 52.
J210 (9)	In body harness, approximately 16 cm before left front tweeter breakout. See Fig. 52.
J213 (14)	In body harness, approximately 11 cm to right of stop lamp switch breakout in main harness. See Fig. 52.
J214 (1)	In I/P harness, approximately 2.5 cm to right of data link connector in main bundle. See Fig. 32.
J215 (15)	In body harness, approximately 14 cm to right of stop lamp switch breakout in main harness. See Fig. 52.
J217 (Except Truck)	Body harness, 35 cm from X115.
J217 (Truck)	Body harness, 7 cm left of accelerator pedal.
J220 (4)	In blower motor resistor jumper harness, approximately 15 cm from X203. See Fig. 33.
J224 (10)	In body harness, approximately 15 cm from main harness into breakout to sunroof. See Fig. 52.
J225	In front view camera harness.
J227	Front view camera switch harness, in breakout to body harness.
J228	Front view camera switch harness, in breakout to body harness.
J229	Front view camera switch harness, in breakout to body harness.
J230 (8)	In HVAC harness, approximately 10 cm back from right air temperature actuator connector. See Fig. 33.
J234 (4)	In I/P harness center dash area, approximately 5 cm left of breakouts to HVAC in main bundle. See Fig. 32.
J240 (6)	In HVAC harness, approximately 28.5 cm back from right air temperature actuator connector. See Fig. 33.
J244 (17)	In body harness behind passenger side dash area, approximately 25 cm before breakout to right front door. See Fig. 52.
J245	In body harness left front kick panel area, approximately 26 cm rearward of left body pass through.
J246	Behind passenger side dash area.
J247 (1)	In body harness behind passenger side dash area, approximately 5 cm before breakout to right front door. See Fig. 52.
J250 (2)	In HVAC harness, approximately 13.5 cm before breakout to evaporator temperature sensor. See Fig. 33.
J251 (2)	In I/P harness, approximately 0.5 cm right of breakout to left footwell lamp. See Fig. 32.
J260 (7)	In HVAC harness, approximately 23.5 cm back from right air temperature actuator connector. See Fig. 33.
J264	In body harness, approximately 24.5 cm rearward of body pass through in breakout to left door.
J270	SPO accessory power jumper harness, 10 cm from rear wiper/washer switch.
J271	SPO accessory power jumper harness, 3.9 cm from rear wiper/washer switch.
J272	SPO accessory power jumper harness, 16 cm from X201.
J292 (16)	In body harness right kick panel area, approximately 3 cm rearward of breakout to BCM. See Fig. 52.
J294 (11)	In body harness, approximately 3 cm to left of park brake switch breakout. See Fig. 52.
J295 (12)	In body harness, approximately 3 cm to right of park brake switch breakout. See Fig. 52.
J296	In body harness, approximately 1 cm to right off park brake.
J297	In body harness, approximately 31 cm to left of park brake switch breakout.
J300	In body harness, approximately 20 cm forward of left rocker channel cover.
J301	In dealer installed off road harness, under roof-mounted light bar near drivers side lamp connector.
J302	In dealer installed off road harness, under roof-mounted light bar near drivers side lamp connector.
J305 (3)	In body harness under right door sill plate, approximately 18 cm from breakout to X204. See Fig. 52.
J306 (4)	In driver seat harness, in breakout to lumbar adjuster/heater switch. See Fig. 40.
J309	In body harness, under left door sill plate, approximately 41 cm rearward of body pass through in main bundle.
J310 (7)	In body harness, approximately 4.5 cm left of breakout to A/T floor shift control. See Fig. 52.
J312 (5)	In driver seat harness, approximately 28.5 cm back from X307. See Fig. 40.
J313	In passenger seat heater element jumper harness.
J314 (1)	In body harness, approximately 44.5 cm rearward of breakout to left seat belt pretensioner. See Fig. 52.
J315 (6)	In body harness, approximately 47 cm rearward of breakout to right seat belt pretensioner. See Fig. 52.
J316 (9)	In passenger seat harness, approximately 5 cm before breakout to seat adjuster & lumbar adjuster/heater switches. See Fig. 41.
J317	In passenger seat heater element jumper harness.
J318	In passenger seat heater element jumper harness.
J319	In passenger seat heater element jumper harness.
J320 (4)	In body harness rear seat area along sill, approximately 20 cm rearward of breakout to G320. See Fig. 52.
J321	In driver seat heater element jumper harness.
J322	In driver seat heater element jumper harness.
J323 (3)	In body harness, approximately 13 cm right of breakout to G310. See Fig. 52.
J324	In driver seat heater element jumper harness.
J325	In driver seat heater element jumper harness.
J326	In front view camera body harness.
J327	In front view camera body harness.
J328	In front view camera body harness.
J330 (5)	In dome lamp jumper harness, approximately 5 cm before breakout to right sunshade. See Fig. 35.
J340 (6)	In dome lamp jumper harness, approximately 10 cm before breakout to right sunshade. See Fig. 35.
J341 (8)	In passenger seat harness, approximately 10 cm before breakout to seat adjuster & lumbar adjuster/heater switches. See Fig. 41.
J344 (8)	In body harness, approximately 20 cm to left of SDM breakout. See Fig. 52.
J347 (5)	In body harness, approximately 42 cm rearward of breakout to right seat belt pretensioner. See Fig. 52.
J350 (7)	In dome lamp jumper harness, approximately 5 cm before breakout to dome/reading lamp. See Fig. 35.
J356 (H3T)	In chassis harness, approximately 11 cm before breakout to right rear wheel speed sensor.
J357 (H3T)	In chassis harness, approximately 11 cm before breakout to right rear wheel speed sensor.
J359 (3)	In chassis harness, approximately 22.5 cm from fuel pump & sender assembly connector. See Fig. 53.
J360 (H3T)	In chassis harness, 5 cm from breakout to X430.
J361 (H3T)	In chassis harness, 33 cm from G420.
J362 (H3T)	In chassis harness, 27.5 cm from X420.
J363 (H3T)	In chassis harness, 30 cm from X420.
J364 (H3T)	In chassis harness, 3 cm from X420.
J400	License lamp harness, 4 cm from X460.
J401	License lamp harness, 10 cm from X460.
J402	Chassis harness, 5 cm from G420.
J403	Rear fog lamp harness, 5 cm from breakout to X460.
J404 (Except Truck)	Chassis harness, 58 cm from branch to EVAP canister vent solenoid.
J404 (Truck)	License lamp harness, 10 cm from breakout to rearview camera.
J405	Rear fog lamp harness, 5 cm from breakout to X460.
J406	Chassis harness, 5 cm forward of breakout to X420.
J407	Chassis harness, 7 cm forward of breakout to X420.
J514 (4)	In driver door harness, approximately 6.5 cm before breakouts to door lock & window switch. See Fig. 36.
J529 (3)	In driver door harness, approximately 7.5 cm before breakout to power window motor. See Fig. 36.
J590 (5)	In driver door harness, approximately 7.5 cm before breakout to OSRVM. See Fig. 36.
J900 (5)	In endgate harness, approximately 19.5 cm rearward of endgate grommet. See Fig. 37.