Hummer H2. Manual - part 2023

Fig. 2: Passenger Air Bag and Defeat Switch Schematic 
Courtesy of GENERAL MOTORS CORP. 

COMPONENT LOCATOR 

SIR COMPONENT VIEWS 

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

Fig. 3: SIR Sub-System Component Views 
Courtesy of GENERAL MOTORS CORP. 

Callouts For Fig. 3 

Callout

Component Name

1

Body Harness

2

Inflatable Restraint Sensing and Diagnostic Module (SDM)

3

Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector

4

Inflatable Restraint Steering Wheel Module

5

Steering Wheel

6

Radiator Support

7

Inflatable Restraint Front End Discriminating Sensor - Left

8

Inflatable Restraint Front End Discriminating Sensor - Right

9

Inflatable Restraint I/P Module Disable Switch

10

Inflatable Restraint I/P Module Disable Switch Connector

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

SIR ZONE IDENTIFICATION VIEWS 

The SIR Zone Identification Views shown below illustrate the approximate location of all SIR components 
available for the vehicle. This will assist in determining the appropriate SIR Disabling and Enabling Zones for a 
given service procedure, refer to SIR Disabling and Enabling Zones . 

Fig. 4: Hummer H2 SIR Zone Identification Views 
Courtesy of GENERAL MOTORS CORP. 

Callouts For Fig. 4 

11

Inflatable Restraint I/P Module

12

Inflatable Restraint I/P Module Connector

Callout

Component Name

1

Inflatable Restraint Electronic Frontal Sensor (EFS) - Located on the front of the vehicle in the 
engine compartment
Inflatable Restraint I/P Module Disable Switch - Located at the top right under the instrument 

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

SIR CONNECTOR END VIEWS 

Inflatable Restraint Front End DiscriminatingSensor Terminal Identification - Left 

Inflatable Restraint Front End Discriminating Sensor Terminal Identification - Right 

2

panel

3

Inflatable Restraint I/P Module - Located at the top right under the instrument panel

4

Rear Lift Gate Strut - A gas shock is located between rear lift gate and body on the passenger 
side

5

Rear Lift Gate Strut - A gas shock is located between rear lift gate and body on the driver side

6

Inflatable Restraint Sensing and Diagnostic Module (SDM) - Located underneath the LF/driver 
seat

7

Inflatable Restraint Steering Wheel Module - Located on the steering wheel

8

Battery - Located under Hood on the left side

9

Inflatable Restraint Electronic Frontal Sensor (EFS) - Located on the front of the vehicle in the 
engine compartment

Connector Part Information

z

15356718  

z

2-Way F GT 150 Sealed 4.0 (YE)  

Pin

Wire Color

Circuit No.

Function

1

GY

349

Discriminating Sensor - Left - Signal

2

YE

354

Discriminating Sensor - Left-Low Reference

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2