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 AWDSECTION Test Description
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 3: Tests for the proper operation of the 12-volt reference Security Sensor Power circuit, sensor ground circuit, and Passlock™ sensor signal (data) circuit. Troubleshoot the appropriate DTC prior to diagnosing DTC B3031.
DTC B3031
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Theft Deterrent System Schematics | |||
| 1 | Did you perform the Vehicle Theft Deterrent (VTD) Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Theft Deterrent |
| 2 |
|
Go to Step 3 | Go to Step 4 |
| 3 | Does the scan tool display DTC B2947, B2948, B2957, B2958, B2960, or B3033? | Go to Diagnostic Trouble Code (DTC) List | Go to Step 4 |
| 4 |
|
Go to Step 3 | System OK |
RENDER: 1.0x
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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.