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
Automatic Transmission Shift Lock Control Connector End Views
A/T Shift Lock/Park Lock Control Terminal Identification
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BK | 1050 | Ground |
| B | L-GN/BK | 584 | Park Lock Control Solenoid Supply Voltage |
| C | YE | 1996 | Remote Shift Selector Signal |
| D | - | - | Not Used |
| E | D-GN/WH | 1135 | A/T Shift Lock Control Solenoid Supply Voltage |
| F | PK | 1020 | Ignition 0 Voltage |
Stop Lamp Terminal Identification Switch
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | WH | 17 | Stop Lamp Switch Signal |
| B | OR | 1540 | Battery Positive Voltage |
| C | BN | 441 | Ignition 3 Voltage |
| D | PU | 420 | TCC Brake Switch/Cruise Control Release Signal |
| E | L-GN/BK | 584 | A/T Shift Lock Control Switch Supply Voltage |
| F | D-GN/WH | 1135 | A/T Shift Lock Control Solenoid Supply Voltage |
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.
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