Hummer H2. Manual — part 1001

C104 (Black, 12 Pin)

Near underhood fuse block. See Fig. 90 .

C105 (Black, 1 Pin)

Near wheelwell. See Fig. 90 .

C106 (Blue, 12 Pin)

Below underhood fuse block. See Fig. 90 .

C115 (Black, 2 Pin)

At top left rear of engine, in engine harness. See

Fig. 53 .

C158 (Ignition Coil Inline) (Light
Gray, 8 Pin)

In engine harness to odd ignition coil harness. See

Fig. 50 .

C175 (Gray, 20 Pin)

At right side of automatic transmission. See Fig.

96 .

C200 (I/P Harness Side) (Black, 16
Pin)

Behind left side of dash. See Fig. 14 .

C201 (I/P Harness Side) (Yellow, 4
Pin)

On left side of dash, behind left kick panel. See

Fig. 14 .

C202 (I/P To Steering Column
Harness) (Black, 52 Pin)

Attached to transfer case shift control bracket. See

Fig. 95 .

C203 (I/P To Steering Column
Harness) (Yellow, 2 Pin)

Below steering column. See Fig. 95 .

C210 (I/P harness side) (Black, 12
Pin)

At bottom left side of dash. See Fig. 80 .

C277 (Black, 8 Pin)

In top of steering column.

C298 (I/P To Body Harness) (Light
Gray, 22 Pin)

Behind right kick panel. See Fig. 95 .

C310 (Black, 17 Pin)

At left side "B" pillar. See Fig. 93 .

C311 (Black, 3 Pin)

At base of left roof rail, above driver.

C320 (Black, 6 Pin)

Under left rear seat. See Fig. 87 .

C325 (Black, 16 Pin)

Under driver's seat. See Fig. 84 .

C326 (Light Gray, 13 Pin)

In driver's seat harness, under driver's seat. See

Fig. 84 .

C327 (Light Blue, 24 Pin)

In driver's seat harness, under driver's seat. See

Fig. 101 .

C328 (White, 10 Pin)

In driver's seat harness, under driver's seat. See

Fig. 84 .

C329 (Black 6 Pin)

In driver's seat harness, under driver's seat. See

Fig. 84 .

C330 (Gray, 6 Pin)

In driver's seat harness, under driver's seat. See

Fig. 84 .

C333 (Black, 8 Pin)

In driver's seat harness, under driver's seat. See

Fig. 60 .

C350 (Console Harness Side) (Light
Gray, 22 Pin)

Under front floor console. See Fig. 102 .

C350 (I/P Harness Side) (Light Gray,
22 Pin)

Under front floor console. See Fig. 102 .

2004 Hummer H2

2004 GENERAL MOTORS Hummer H2

GROUNDS

GROUNDS LOCATION

C355 (Black, 8 Pin)

At front of audio amplifier. See Fig. 93 .

C375 (Black, 16 Pin)

Under passenger seat. See Fig. 85 .

C376 (Black, 6 Pin)

Under passenger seat. See Fig. 85 .

C377 (Gray, 6 Pin)

Under passenger seat. See Fig. 86 .

C378 (Black, 4 Pin)

Under passenger seat. See Fig. 86 .

C380 (Black, 6 Pin)

Under right rear seat. See Fig. 87 .

C390 (White, 17 Pin)

At right side "B" pillar. See Fig. 75 .

C420 (Medium Gray, 12 Pin)

At top left area of liftgate. See Fig. 92 .

C450 (Black, 2 Pin)

At rear underside of vehicle, attached to air

suspension assembly. See Fig. 37 .

C451 (Black, 16 Pin)

At rear underside of vehicle, attached to air

suspension assembly. See Fig. 37 .

C900 (Black, 12 Pin)

Inside top left body opening of liftgate. See Fig.

103 .

Inline C148 (Light Gray, 8 Pin)

In engine harness to odd ignition coil harness. See

Fig. 49 .

Component

Location

Fuel Tank Filler Ground

At left rear frame body mount. See Fig. 23 .

G100

At left side of engine compartment. See Fig. 46 .

G100-Forward Lamp
Harness

On left front frame body mount. See Fig. 10 .

G100-Negative Battery
Cable

On left front frame body mount. See Fig. 10 .

G102-Engine Harness
Ground

At left front side of engine block. See Fig. 12 .

G102-Negative Battery
Cable

At left front side of engine block. See Fig. 12 .

G103

At top right rear of engine. See Fig. 53 .

G103-Engine Harness
Ground

At top right rear of engine. See Fig. 11 .

G104

At top left rear of engine. See Fig. 11 .

G105-Engine Harness
Ground

At lower left side of engine. See Fig. 78 .

G105-Negative Battery
Cable

At lower left side of engine. See Fig. 78 .

G106

At right rear of engine compartment, on forward dash panel.

See Fig. 13 .

2004 Hummer H2

2004 GENERAL MOTORS Hummer H2

SPLICES

SPLICES LOCATION

G200

On left side of dash, near left kick panel. See Fig. 14 .

G203

At lower right side of dash, near right kick panel. See Fig.

15 .

G300

On left side body mount, in front of driver door. See Fig. 8 .

G302

At left inner center "B" pillar. See Fig. 18 .

G304

Under passenger seat. See Fig. 19 .

G306

At right inner center "B" pillar. See Fig. 20 .

G308

At right frame body mount, near right rear door. See Fig. 21 .

G310

At left body mount. See Fig. 22 .

G401

At left rear frame body mount. See Fig. 23 .

G402

Attached to front of air suspension mounting bracket. See

Fig. 91 .

G405

At right rear frame body mount. See Fig. 24 .

G410

On right rear inner side body panel. See Fig. 25 .

Component

Location

SP205

In I/P harness, on left side of dash, near footwell courtesy lamp. See Fig.

16 .

SP206

In I/P harness, on left side of dash, near steering column in-line connector.

See Fig. 9 .

SP207

In body harness, on left side of dash, near left kick panel. See Fig. 17 .

SP410

Inside right rear cargo area, at middle of right rear "D" pillar. See Fig. 25 .

S100

In forward lamp harness, 28 cm from junction of left horn harness to

forward lamp harness. See Fig. 98 .

S101

In forward lamp harness, 5 cm from ambient temperature sensor harness.

See Fig. 99 .

S102

In engine harness, 4 cm from knock sensor connector. See Fig. 97 .

S103

In engine harness, 10 cm from junction of fuel injector No. 3 harness to

engine harness. See Fig. 97 .

S104

In engine harness, 30 cm from junction of fuel injector No. 3 harness to

engine harness. See Fig. 97 .

S140

In ignition coil harness.

S141

In ignition coil harness.

S142

In ignition coil harness.

S160

In ignition coil harness.

S161

In ignition coil harness.

S162

In ignition coil harness.

2004 Hummer H2

2004 GENERAL MOTORS Hummer H2

S210

In I/P harness, 8.5 cm from junction of instrument cluster connector harness

to I/P harness. See Fig. 94 .

S211

In I/P harness, 15 cm from junction of instrument cluster connector harness

to I/P harness. See Fig. 94 .

S212

In I/P harness, 29.5 cm from junction of instrument cluster connector

harness to I/P harness. See Fig. 94 .

S213

In I/P harness, 45.4 cm from junction of instrument cluster connector

harness to I/P harness. See Fig. 94 .

S214

In I/P harness, 50.4 cm from junction of instrument cluster connector

harness to I/P harness. See Fig. 94 .

S215

In I/P harness, 5.5 cm from junction of air temperature sensor. See Fig. 94 .

S216

In I/P harness, 2.5 cm from junction of air temperature sensor. See Fig. 94 .

S217

In I/P harness, 25.4 cm from headlamp panel dimmer switch. See Fig. 94 .

S218

In steering column harness.

S219

In steering column harness.

S290

In I/P harness, 6.5 cm from junction of I/P compartment lamp to I/P

harness. See Fig. 94 .

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. See

Fig. 83 .

S302

In headliner harness, near middle of left "A" pillar. See Fig. 83 .

S303

In roof-marker harness, 22 cm from right front marker lamp connector. See

Fig. 64 .

S304

In chassis harness, 21.5 cm from G300. See Fig. 8 .

S305

In headliner harness, 5 cm from top mounting clip. See Fig. 83 .

S306

In left rear seat harness.

S307

In body harness, 37.5 cm from C312. See Fig. 92 .

S310

In body harness, 8.5 cm from right "B" pillar courtesy lamp harness

junction to body harness. See Fig. 93 .

S326

In driver seat jumper harness, 5 cm from junction of C330 & C328.

S327

In driver seat jumper harness, 10 cm from junction of C330 & C328.

S328

In driver seat jumper harness, 4.5 cm from memory seat module C3.

S345

In roof marker harness, 16.5 cm from junction of right center roof lamp

connector to roof marker harness. See Fig. 64 .

S350

In console harness, 7 cm from junction of body harness in-line C355 to

floor console harness. See Fig. 89 .

S351

In console harness, 28.5 cm from junction of body harness in-line C355 to

floor console harness. See Fig. 89 .

S375

In chassis harness, 63.5 cm from rear differential lock actuator, on chassis

harness.

2004 Hummer H2

2004 GENERAL MOTORS Hummer H2