Hummer H2. Manual - part 242

Fig. 3: Stationary Window Component Views 
Courtesy of GENERAL MOTORS CORP. 

Callouts For Fig. 3 

Callout

Component Name

1

Forward Lamp Harness

2

Radiator Support

3

Ambient Air Temperature Sensor - HVAC

4

Ambient Air Temperature Sensor - Mirror

5

Inside Rearview Mirror Connector

6

Vanity Mirror Lamp Connector - Left

7

Vanity Mirror Lamp Connector - Right

8

Center High Mounted Stop Lamp (CHMSL) Connector

9

Rear Window Defogger Grid Connector

10

Rear Window Defogger Grid Connector

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

STATIONARY WINDOWS CONNECTOR END VIEWS

Ambient Air Temperature Sensor Terminal Identification - Mirror 

Inside Rearview Mirror (ISRVM) Terminal Identification 

Connector Part Information

z

12052642  

z

2-Way F Metri-Pack 150 Series Sealed (L-GN)  

Pin

Wire Color

Circuit No.

Function

A

D- GN/WH

636

Ambient Air Temperature Sensor Signal

B

BK/WH

1704

Low Reference

Connector Part Information

z

15324871  

z

16-Way F AMP (BK)  

Pin

Wire Color

Circuit No.

Function

1-4

-

-

Not Used

5

GY

1690

Automatic Day/Night Mirror Signal

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

Rear Window Defogger Grid Terminal Identification - C1 

Rear Window Defogger Grid Terminal Identification - C2 

6

D-GN/WH

636

Ambient Air Temperature Sensor Signal

7

BK/WH

1704

Low Reference

8

BK

1050

Ground

9

L-GN

24

Backup Lamp Supply Voltage

10-12

-

-

Not Used

13

BN

341

Ignition 3 Voltage

14-15

-

-

Not Used

16

PK

1691

Automatic Day/Night Mirror Low Reference

Connector Part Information

z

12059885  

z

1-Way M Metri-Pack 480 Series (BK)  

Pin

Wire Color

Circuit No.

Function

A

PU

293

Rear Defog Element Supply Voltage

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

DIAGNOSTIC INFORMATION AND PROCEDURES 

DIAGNOSTIC STARTING POINT - STATIONARY WINDOWS 

For the inside rearview mirror with the automatic day-night feature, begin the diagnosis by reviewing the 
system Description and Operation. Reviewing the Description and Operation information will help you 
determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and 
Operation information will also help you determine if the condition described by the customer is normal 
operation. Refer to Symptoms - Stationary Windows in order to identify the correct procedure for diagnosing 
the system and where the procedure is located. 

For the rear window defogger, begin the diagnosis with the Diagnostic System Check - Defogger . The 
Diagnostic System Check will provide the following information: 

z

The identification of the control modules which command the system  

z

The ability of the control modules to communicate through the serial data circuit  

z

The identification of any stored diagnostic trouble codes (DTCs) and their status  

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and 
where the procedure is located. 

DIAGNOSTIC SYSTEM CHECK - DEFOGGER 

Test Description 

Connector Part Information

z

12059885  

z

1-Way M Metri-Pack 480 Series (BK)  

Pin

Wire Color

Circuit No.

Function

A

BK

1450

Ground

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2