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.
Diagnostic Procedure
2004 Oldsmobile Bravada RWDSECTION Diagnostic Procedure
WARNING: This page is about a different car, the 2000 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition on and observe AIR BAG warning light. If light flashes 7 times, go to next step. If light does not flash, go to AIR BAG WARNING LIGHT CIRCUIT MALFUNCTION .
- Install scan tool to Data Link Connector (DLC). If scan tool powers up, go to next step. If scan tool does not power up, check power and ground circuits for DLC and repair as necessary.
- Check scan tool communication with SDM. If scan tool communicates with SDM, go to next step. If scan tool does not communicate with SDM, check Class 2 Data Serial circuit and repair as necessary.
- Using scan tool, request DTCs. If current or history DTCs exist, go to next step. If no DTCs exist, see DIAGNOSTIC AIDS.
- If scan tool displays any "U" type DTCs, repair other systems as indicated on scan tool before attempting air bag system repairs. If no "U" type DTCs are displayed, go to next step.
- Follow diagnostic procedures for displayed DTCs.
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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.