Hummer H2. Manual - part 642

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Power Door Locks Inoperative (Front Door(s)) or Power Door Locks Inoperative (Rear Door(s))  

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Power Door Locks Inoperative - Endgate/Liftgate  

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Power Mirrors Inoperative  

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Power Mirrors - Folding Inoperative  

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Power Mirrors - Memory Functions Inoperative  

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Mirrors - Outside Automatic Day-Night Feature Inoperative  

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Heated Mirrors Inoperative  

POWER WINDOWS INOPERATIVE - EXPRESS DOWN FUNCTION 

Power Windows Inoperative - Express Down Function 

Step

Action

Yes

No

Schematic Reference: Power Window Schematics 
Connector End View Reference:Power Door Systems Connector End Views

1

Did you perform the Door Systems Diagnostic 
System Check?

Go to Step 2

Go to Diagnostic 

System Check - 

Door Systems

2

Activate the power window switch to the express 
down position and release the power window 
switch. 
Does the power window continue to travel 
downward after the power window switch is 
released?

Go to Testing for 

Intermittent Conditions 

and Poor Connections in 

Wiring Systems

Go to Step 3

3

1. Install a scan tool.  

2. Monitor the appropriate window status data 

parameter in the driver door input list.  

3. Activate the appropriate power window 

switch to the express down position.  

Does the window status data parameter change to 
Express Down?

Go to Step 4

Go to Step 6

4

Is the express down function inoperative on the 
passenger front power window?

Go to Step 5

Go to Step 6

5

Inspect for poor connections at the passenger 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 7

6

Inspect for poor connections at the driver 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

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

  

POWER WINDOWS INOPERATIVE - LOCKOUT FUNCTION 

Power Windows Inoperative - Lockout Function 

7

Replace the passenger door module. Refer to 
Switch Replacement - Door Lock and Side 
Window - Passenger .Did you complete the 
repair?

IMPORTANT:

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

Go to Step 9

-

8

Replace the driver door module. Refer to Switch 
Replacement - Door Lock and Side Window - 
Driver .Did you complete the repair?

IMPORTANT:

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

Go to Step 9

-

9

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

System OK

Go to Step 3

Step

Action

Yes

No

Schematic Reference: Power Window Schematics 
Connector End View Reference: Power Door Systems Connector End Views

1

Did you perform the Door Systems Diagnostic 
System Check?

Go to 

Step 2

Go to Diagnostic System Check - 

Door Systems

2

1. Disable the window lockout function.  

2. Operate the passenger power windows from 

the passenger door power window switches.  

Do the passenger power windows operate 
normally?

Go to 

Step 3

Go to Power Window Inoperative -

Passenger Door (Front Door) or 

Power Window Inoperative - 

Passenger Door (Rear Door(s))

3

1. Enable the window lockout function.  

2. Operate the passenger power windows from 

the passenger door power window switches.  

Do the passenger power windows operate up and 
down?

Go to 

Step 4

Go to Testing for Intermittent 

Conditions and Poor Connections 

in Wiring Systems

1. Install a scan tool.  

2. Monitor the window lockout data parameter 

in the driver door module input list.  

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

  

4

3. Place the window lockout switch in both the 

ON and OFF positions.  

Does the window lockout data parameter change 
accordingly?

Go to 

Step 5

Go to Step 10

5

Does the window lockout function for the front 
passenger power window operate properly?

Go to 

Step 6

Go to Step 9

6

1. Disable the window lockout function.  

2. Disconnect the appropriate rear window 

switch.  

3. Connect a test lamp to a good ground.  

4. Probe the rear window lockout signal circuit 

at the rear window switch harness connector. 

Does the test lamp illuminate?

Go to 

Step 7

Go to Step 11

7

Test for a short to battery positive voltage on the 
rear window lockout signal circuit. Refer to Circuit 
Testing and Wiring Repairs in Wiring Systems. 
Did you find and correct the condition?

Go to 

Step 16

Go to Step 8

8

Inspect for poor connections at the body control 
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 16

Go to Step 12

9

Inspect for poor connections at the passenger 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 16

Go to Step 13

10

Inspect for poor connections at the driver 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 16

Go to Step 14

11

Inspect for poor connections at the rear power 
window switch. 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 16

Go to Step 15

12

IMPORTANT:

Perform the set up procedure for the body 
control module. Refer to Body Control Module 
(BCM) Programming/RPO Configuration in Body 
Control System.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

  

POWER WINDOW INOPERATIVE - DRIVER DOOR 

Power Window Inoperative - Driver Door 

Replace the body control module. Refer to Body 
Control Module Replacement in Body Control 
System.Did you complete the replacement?

Go to 

Step 16

-

13

Replace the passenger door module. Refer to 
Switch Replacement - Door Lock and Side 
Window - Passenger .Did you complete the 
repair?

IMPORTANT:

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

Go to 

Step 16

-

14

Replace the driver door module. Refer to Switch 
Replacement - Door Lock and Side Window - 
Driver .Did you complete the repair?

IMPORTANT:

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

Go to 

Step 16

-

15

Replace the rear power window switch. Refer to 
Power Window Switch Replacement - Rear 
Door . 
Did you complete the repair?

Go to 

Step 16

-

16

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

System 

OK

Go to Step 2

Step

Action

Yes

No

Schematic Reference: Power Window Schematics 
Connector End View Reference: Power Door Systems Connector End Views

1

Did you perform the Door Systems Diagnostic 
System Check?

Go to Step 2

Go to Diagnostic 

System Check - 

Door Systems

2

Operate the driver power window in the UP and 
DOWN directions. 
Does the driver power window operate properly?

Go to Testing for 

Intermittent Conditions 

and Poor Connections in 

Wiring Systems

Go to Step 3

3

1. Install a scan tool.  

2. Monitor the driver window status data 

parameter in the driver door inputs list.  

Does the driver window status data parameter 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2