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 numbers below refer to the step numbers on the diagnostic table.
- 3: Tests for proper operation of the circuit in the high voltage range.
- 4: Tests for a short to ground in the Passlock™ sensor signal circuit.
DTC B2957
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Theft Deterrent System Schematics Connector End View Reference: Theft Deterrent System Connector End Views |
||||
| 1 | Did you perform the Theft Deterrent (VTD) Diagnostic System Check? | - | Go to Step 2 | Go to Diagnostic System Check - Theft Deterrent |
| 2 |
|
0.4-4.9 V | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
4.9 V | Go to Step 7 | Go to Step 4 |
| 4 | Test the Passlock™ sensor signal circuit 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 10 | Go to Step 5 |
| 5 | Inspect for poor connections at the BCM. 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 10 | Go to Step 6 |
| 6 |
IMPORTANT:
When replacing the BCM, refer to Body Control Module (BCM) Programming/RPO Configuration
in Body Control System. Replace the body control module. Refer to Body Control Module Replacement
in Body Control System.Did you complete the replacement? |
- | Go to Step 10 | - |
| 7 | Inspect for poor connections at the Passlock™ sensor. 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 10 | Go to Step 8 |
| 8 | Replace the Passlock™ sensor in the electronic column lock module assembly. Refer to Ignition Lock Cylinder Replacement
in Steering Wheel and Column. Did you complete the replacement? |
- | Go to Step 9 | - |
| 9 | Perform the Programming Theft Deterrent System Components procedure. Is the repair complete? |
- | Go to Step 10 | - |
| 10 |
|
- | Go to Step 3 | System OK |
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.