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.
Power Windows Inoperative - Express Down Function
2004 Oldsmobile Bravada RWDSECTION Power Windows Inoperative - Express Down Function
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
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 Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 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 |
|
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 (PDM). 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 (DDM). 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 PDM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the repair? |
Go to Step 9 | - |
| 8 | Replace the DDM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the repair? |
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 |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.