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.
Test Description
2004 Oldsmobile Bravada RWDSECTION Test Description
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 2: Listen for an audible click when the left rear power window relay operates. Command both the ON and OFF states. Repeat the commands as necessary.
- 3: Tests for voltage at the coil side of the left rear power window up relay.
- 4: Verifies that the BCM is providing ground to the left rear power window up relay.
- 5: Tests if ground is constantly being applied to the left rear power window up relay.
DTC B3819
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Power Window Schematics Connector End View Reference: Power Door Systems Connector End Views or Body Control System Connector End Views in Body Control System |
|||
| 1 | Did you perform the Door Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Door Systems |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
Go to Step 4 | Go to Step 10 |
| 4 |
|
Go to Step 8 | Go to Step 5 |
| 5 | Does the test lamp remain illuminated with each command? | Go to Step 7 | Go to Step 6 |
| 6 | Test the control circuit of the left rear power window up relay for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
Go to Step 13 | Go to Step 9 |
| 7 | Test the control circuit of the left rear power window up relay for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
Go to Step 13 | Go to Step 9 |
| 8 | Inspect for poor connections at the left 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 13 | Go to Step 11 |
| 9 | Inspect for poor connections at the harness connector of 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 13 | Go to Step 12 |
| 10 | Repair the open or short to ground in the battery positive voltage circuit of the left rear power window switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? |
Go to Step 13 | - |
| 11 | Replace the left rear power window switch. Did you complete the replacement? |
Go to Step 13 | - |
| 12 |
IMPORTANT:
Perform the set up procedure for the Body Control Module. Replace the Body Control Module. Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement? |
Go to Step 13 | - |
| 13 |
|
Go to Step 2 | System OK |
RENDER: 1.0x
NO RELATED
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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.