Hummer H2. Manual - part 515

HEATED MIRRORS INOPERATIVE 

Heated Mirrors Inoperative 

Did you find or correct the condition?

Go to Step 14

Go to Step 10

9

Inspect for poor connections at the harness 
connector of the driver outside rearview 
mirror. Refer to Testing for Intermittent 
Conditions and Poor Connections and 
Connector Repairs in Wiring Systems. 
Did you find or correct the condition?

-

Go to Step 14

Go to Step 12

10

Inspect for poor connections at the harness 
connector of the inside rearview mirror. 
Refer to Testing for Intermittent 
Conditions and Poor Connections and 
Connector Repairs in Wiring Systems. 
Did you find or correct the condition?

-

Go to Step 14

Go to Step 13

11

Repair the short to voltage in the signal 
circuit of the driver outside rearview mirror 
element. Refer to Wiring Repairs in Wiring 
Systems.Did you complete the repair?

IMPORTANT:

A short to voltage in the signal circuit of 
the driver outside rearview mirror element 
will cause permanent damage to both the 
driver outside rearview mirror element 
and the inside rearview mirror.

-

Go to Step 14

-

12

Replace the driver outside rearview mirror. 
Refer to Mirror Replacement . 
Did you complete the replacement?

-

Go to Step 14

-

13

Replace the inside rearview mirror. Refer to 
Rearview Mirror Replacement in 
Stationary Windows.Did you complete the 
replacement?

IMPORTANT:

Perform the setup procedure for the 
inside rearview mirror with compass. 
Refer to Compass Calibration and 
Variance Procedure in Stationary 
Windows.

-

Go to Step 14

-

14

Operate the system in order to verify the 
repair. 
Did you correct the condition?

-

System OK

Go to Step 2

Step

Action

Yes

No

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

  

Schematic Reference: Outside Mirror Schematics

1

Did you perform the Door Systems Diagnostic 
System Check?

Go to Step 2

Go to Diagnostic 

System Check - 

Door Systems

2

Verify the heated mirrors inoperative fault is 
present. 
Do the heated mirrors operate normally?

Go to Testing for 

Intermittent Conditions 

and Poor Connections 

in Wiring Systems

Go to Step 3

3

Does the rear window defogger operate properly?

Go to Step 4

Go to Defogger 

Inoperative - Rear 

Window in 

Stationary Windows

4

1. Disconnect the appropriate mirror.  

2. Start the engine.  

3. Connect a test lamp between the mirror 

heater control and the mirror heater ground 
circuit pins of the appropriate door module.  

4. Activate the rear window defogger switch.  

Does the test lamp illuminate?

Go to Step 5

Go to Step 6

5

Inspect for poor connections at the harness 
connector of the outside rearview mirror. Refer to 
Testing for Intermittent Conditions and Poor 
Connections and Connector Repairs in Wiring 
Systems. 
Did you find and correct the condition?

Go to Step 9

Go to Step 7

6

Inspect for poor connections at the harness 
connector of the appropriate door module. Refer to 
Testing for Intermittent Conditions and Poor 
Connections and Connector Repairs in Wiring 
Systems. 
Did you find and correct the condition?

Go to Step 9

Go to Step 8

7

Replace the appropriate outside rearview mirror 
face. 
Did you complete the replacement?

Go to Step 9

-

8

Replace the appropriate door module. Refer to 
Switch Replacement - Door Lock and Side 
Window - Driver or Switch Replacement - Door 
Lock and Side Window - Passenger .Did you 
complete the replacement?

IMPORTANT:

Perform the set up procedure for the 
appropriate door module. Refer to Service 
Programming System (SPS) in Programming.

Go to Step 9

-

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

  

REPAIR INSTRUCTIONS 

POWER WINDOW SWITCH REPLACEMENT - REAR DOOR 

Removal Procedure 

9

Operate the system in order to verify the repair. 
Did you correct the condition?

System OK

Go to Step 2

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

  

Fig. 14: Rear Door Power Window Switch 
Courtesy of GENERAL MOTORS CORP. 

1. Use a suitable flat bladed tool to remove the power window switch from the door panel.  

2. Remove the power window switch from the connector.  

Installation Procedure 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2