Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Hummer H2 4D Utility PickupFACTORY OEM SERVICE PROCEDURE
Power Door Systems Component Views
| Callout | Component Name |
|---|---|
| 1 | DDM |
| 2 | DDM - C1 (Black) |
| 3 | DDM - C2 (Black) |
| 4 | Mirror Harness Connector - C3 (Blue) |
| 5 | Memory/Heated Seat Switch Connector - C5 (Green) |
| 6 | Mirror Harness Connector - C4 (Black) |
| Callout | Component Name |
|---|---|
| 1 | FPDM |
| 2 | Mirror Harness Connector - C4 (Black) |
| 3 | Memory/Heated Seat Switch Connector - C5 (Green) |
| 4 | Mirror Harness Connector - C3 (Blue) |
| 5 | FPDM - C2 (Black) |
| 6 | FPDM - C1 (Black) |
| Callout | Component Name |
|---|---|
| 1 | Driver Door |
| 2 | Outside Rearview Mirror |
| 3 | Memory/Heated Seat Switch |
| 4 | Memory/Heated Seat Switch Connector - C5 (Green) |
| 5 | Driver Door Module (DDM) |
| 6 | Fuse Block - I/P - C3 |
| 7 | Speaker - LF Door |
| 8 | Window Motor - Driver |
| 9 | Courtesy Lamp - Left Door |
| 10 | Door Latch Assembly - Driver |
| 11 | Door Latch Assembly Connector - Driver |
| Callout | Component Name |
|---|---|
| 1 | Passenger Door |
| 2 | Outside Rearview Mirror |
| 3 | Passenger Door Module (PDM) |
| 4 | Door Latch Assembly - Passenger |
| 5 | Courtesy Lamp - Right Door |
| 6 | Window Motor - Front Passenger |
| 7 | Speaker - RF Door |
| 8 | Junction Block - I/P - C2 |
| 9 | Junction Block - I/P - C7 |
| 10 | Heated Seat Switch |
| Callout | Component Name |
|---|---|
| 1 | Door Window Motor - LR |
| 2 | Door Window Motor Connector - LR |
| 3 | Door Harness Pass-Through Grommet |
| 4 | Door Window Switch - LR |
| 5 | Door Window Switch Connector - LR |
| 6 | Door Latch Assembly - LR |
| 7 | Speaker - LR Door |
| Callout | Component Name |
|---|---|
| 1 | Right B-Pillar |
| 2 | C390 |
| 3 | G306 |
| 4 | Liftgate Lock Relay |
| 5 | Courtesy Lamp - Right B-Pillar |
| 6 | Body Harness |
| Callout | Component Name |
|---|---|
| 1 | Door Lock Switch Connector - Rear |
| 2 | Door Lock Switch - Rear |
| 3 | Rear Storage Bin |
| Callout | Component Name |
|---|---|
| 1 | Center High Mounted Stop Lamp (CHMSL) Connector |
| 2 | Rear Window Defogger Grid Connector |
| 3 | Rear Window Defogger Grid Connector |
| 4 | Splice S900 |
| 5 | Rear Window Wiper Module - w/Motor |
| 6 | Door Lock Actuator - Liftgate |
| 7 | Liftgate Ajar Switch - Left |
| 8 | Liftgate Ajar Switch - Right |
| 9 | Splice S902 |
| 10 | Splice S901 |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.