Hummer H2. Manual - part 1053

Air Temperature Sensor 

Assembly - Inside

the headliner above the 
drivers seat

Views in HVAC 

Systems - Automatic

Views in HVAC 

Systems - Automatic

Air Temperature Sensor - 

Lower Left

Near the middle left side of 
the I/P under the left round 
discharge duct

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Air Temperature Sensor - 

Lower Right

Near the middle right side 
of the I/P in front of the 
rectangular discharge duct

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Air Temperature Sensor - 

Upper Left

At the left side of the I/P 
dash panel

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Air Temperature Sensor - 

Upper Right

At the right side of the I/P 
dash panel

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Ambient Air 

Temperature Sensor - 

HVAC

At the right front of the 
vehicle in front of the 
mirror ambient temperature 
sensor to the right of the 
radiator support

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Ambient Air 

Temperature Sensor - 

Mirror

At the right front of the 
vehicle behind the HVAC 
ambient temperature sensor 
to the right of the radiator 
support

Stationary Windows 

Component Views in 

Stationary Windows

Stationary Windows 

Connector End Views 

in Stationary Windows

Ambient Light/Sunload 

Sensor Assembly

Top center of the I/P in the 
defroster deflector panel

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Antenna - Cellular/GPS

On the roof at the left front 
side

Cellular 

Communication 

Component Views in 

Cellular 

Communication

-

Antenna - Radio

On the right front side of 
vehicle

Entertainment 

Component Views in 

Entertainment

-

Audio Amplifier

Under the front floor 
console between the front 
seats

Entertainment 

Component Views in 

Entertainment

Entertainment 

Connector End Views 

in Entertainment

Automatic Transmission 

Fluid Pressure (TFP) 

Manual Valve Position 

Switch

In the automatic 
transmission

Automatic 

Transmission 

Electronic Component 

Views in Automatic 

Transmission - 4L60-E

Automatic 

Transmission Internal 

Connector End Views 

in Automatic 

Transmission - 4L60-E

Automatic Transmission  In the automatic 

Automatic 

Transmission 

Automatic 

Transmission Internal 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems (Component List) - Hummer H2

  

Fluid Temperature (TFT) 

Sensor

transmission

Electronic Component 

Views in Automatic 

Transmission - 4L60-E

Connector End Views 

in Automatic 

Transmission - 4L60-E

Auxiliary Power Outlet - 

Front 1

Near the center area of the 
I/P below the vehicle 
communication interface 
module (VCIM)

Power and Grounding 

Component Views

Power and Grounding 

Connector End Views

Auxiliary Power Outlet - 

Front 2

Near the center area of the 
I/P below the vehicle 
communication interface 
module (VCIM)

Power and Grounding 

Component Views

Power and Grounding 

Connector End Views

Auxiliary Power Outlet - 

Rear

In the right rear of the cargo 
area near the right D-pillar

Power and Grounding 

Component Views

Power and Grounding 

Connector End Views

Auxiliary Power Outlet - 

Console

In the rear of the front floor 
console

Power and Grounding 

Component Views

Power and Grounding 

Connector End Views

Backup Lamp - Left

Upper lamp in left tail lamp 
assembly

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Backup Lamp - Right

Upper lamp in right tail 
lamp assembly

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Battery

On the left front side of the 
engine compartment

Engine Electrical 

Component Views in 

Engine Electrical

Engine Electrical 

Connector End Views 

in Engine Electrical

Blower Motor

At the right lower I/P on the 
HVAC assembly

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Blower Motor Control 

Processor

At the bottom right side of 
the HVAC assembly

HVAC Component 

Views in HVAC 

Systems - Automatic

HVAC Connector End 

Views in HVAC 

Systems - Automatic

Body Control Module 

(BCM)

On the top left side of the 
I/P above the fuse block - 
I/P

Body Control System 

Component Views in 

Body Control System

Body Control System 

Connector End Views 

in Body Control System

Brake Fluid Level Switch

On the left side of the brake 
fluid reservoir in the left 
rear of the engine 
compartment

Hydraulic Brakes 

Component Views in 

Hydraulic Brakes

Hydraulic Brakes 

Connector End Views 

in Hydraulic Brakes

Camshaft Position 

(CMP) Sensor

At the top center rear of the 
engine near G104 and the 
engine oil pressure (EOP) 
sensor

Engine Controls 

Component Views in 

Engine Controls - 6.0L

Engine Controls 

Connector End Views 

in Engine Controls - 

6.0L

Cellular Telephone 

Microphone

In the left front headliner 
above the driver

Cellular 

Communication 

Component Views in 

Cellular 

Cellular 

Communication 

Connector End Views 

in Cellular 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems (Component List) - Hummer H2

  

Communication

Communication

Center High Mounted 

Rear Stop Lamp 

(CHMSL)

On the center top rear of the 
cab

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Cigar Lighter

At the center of the I/P near 
the accessory outlets

Power and Grounding 

Component Views

Power and Grounding 

Connector End Views

Clearance Lamps - LF

At the top left front of the 
outer roof

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Clearance Lamps - LR

At the top left rear of the 
outer roof

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Clearance Lamps - RF

At the top right front of the 
outer roof

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Clearance Lamps - RR

At the top right rear of the 
outer roof

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Coolant Level Switch, If 

Equipped

Right front of the engine 
compartment on the bottom 
of the coolant reservoir

Cooling System 

Component Views in 

Engine Cooling

Cooling System 

Connector End Views 

in Engine Cooling

Courtesy Lamp - Left B-

Pillar

At the base of the left B-
pillar trim panel

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - Right 

B-Pillar

At the base of the right B-
pillar trim panel

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - Left 

Footwell, If Equipped

Under lower left side of I/P

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - Right 

Footwell, If Equipped

Under lower right side of 
I/P

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - Left 

Front Door

At the left front side door 
trim panel

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - Right 

Front Door

At the right front side door 
trim panel

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - LR 

Door

Below the arm rest attached 
to the trim panel

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy Lamp - RR 

Door

Below the arm rest attached 
to the trim panel

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems (Component List) - Hummer H2

  

Courtesy/Reading Lamp 

- Center

In the middle of the 
headliner

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy/Reading Lamp 

- Left Front

In the left front of the 
overhead console

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy/Reading Lamp 

- Rear

In the rear of the headliner

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Courtesy/Reading Lamp 

- Right Front

At the right front of the 
overhead console

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Crankshaft Position 

(CKP) Sensor

At the lower right rear side 
of the engine block behind 
the starter solenoid

Engine Controls 

Component Views in 

Engine Controls - 6.0L

Engine Controls 

Connector End Views 

in Engine Controls - 

6.0L

Cruise Control On/Off 

Switch

Part of the multifunction 
turn signal lever

Steering Wheel and 

Column Component 

Views in Steering 

Wheel and Column

Steering Wheel and 

Column Connector 

End Views in Steering 

Wheel and Column

Data Link Connector 

(DLC)

On the left lower dash 
below the steering column

Data Link 

Communications 

Component Views in 

Data Link 

Communications

Data Link 

Communications 

Connector End Views 

in Data Link 

Communications

Daytime Running Lamp 

(DRL) - Left

Below the left headlamp 
assembly

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Daytime Running Lamp 

(DRL) - Right

Below the right headlamp 
assembly

Lighting Systems 

Component Views in 

Lighting Systems

Lighting Systems 

Connector End Views 

in Lighting Systems

Door Latch Assembly - 

Driver

In the center rear of the 
driver door

Power Door Systems 
Component Views in 

Doors

Power Door Systems 

Connector End Views 

in Doors

Door Latch Assembly - 

Passenger

In the center rear of the 
passenger door

Power Door Systems 
Component Views in 

Doors

Power Door Systems 

Connector End Views 

in Doors

Door Latch Assembly - 

LR

In the center rear of the LR 
passenger door

Power Door Systems 
Component Views in 

Doors

Power Door Systems 

Connector End Views 

in Doors

Door Latch Assembly - 

RR

In the center rear of the RR 
passenger door

Power Door Systems 
Component Views in 

Doors

Power Door Systems 

Connector End Views 

in Doors

Door Lock Switch - 

Driver

On the left door trim panel 
armrest

Power Door Systems 
Component Views in 

Power Door Systems 

Connector End Views 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems (Component List) - Hummer H2