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 AWDSECTION Diagnostic Procedure
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Observe AIR BAG warning light when turning ignition on. If AIR bag warning light flashes 7 times and goes off, go to next step. If AIR BAG warning light does not flash 7 times and go off, inspect vehicle for damage to wiring system, visible body damage, faulty or intermittent electrical connections or addition of aftermarket devices which could affect SIR operation. Diagnose AIR BAG warning light malfunction. See AIR BAG WARNING LIGHT CIRCUIT MALFUNCTION .
- Install scan tool to Data Link Connector (DLC), located under left side of instrument panel. If scan tool powers up, go to next step. If scan tool does not power up, inspect and repair data link communication circuits.
- If scan tool communicates with SDM, go to next step. If scan tool does not communicate with SDM, inspect and repair data link communication circuits.
- Using scan tool, request SIR DTC display. If scan tool displays history or current SIR DTC's, go to next step. If scan tool does not display any SIR DTC's, system is okay.
- If scan tool displays any DTC's that begin with "U", inspect and repair applicable data link communication circuits and components. If no DTC's are displayed that begin with "U", go to next step.
- If scan tool displays DTC B1000, go to DTC B1000 . If scan tool displays other DTC's, diagnose and repair applicable SIR DTC's. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION table.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| Trouble Code | Possible Cause |
|---|---|
| B0012 | Passenger Stage 2 deployment loop resistance low |
| B0013 | Passenger Stage 2 deployment loop resistance high |
| B0014 | Passenger Stage 2 deployment loop short to ground or voltage |
| B0016 | Passenger Stage 1 deployment loop resistance low |
| B0017 | Passenger Stage 1 deployment loop resistance high |
| B0018 | Passenger Stage 1 deployment loop short to ground or voltage |
| B0022 | Driver Stage 1 deployment loop resistance low |
| B0024 | Driver Stage 2 deployment loop short to ground or voltage |
| B0026 | Driver Stage 2 deployment loop resistance high |
| B0028 | Passenger side impact deployment loop resistance low |
| B0029 | Passenger side impact deployment loop resistance high |
| B0030 | Passenger side impact deployment loop short to ground or voltage |
| B0040 | Driver side impact deployment loop resistance low |
| B0041 | Driver side impact deployment resistance high |
| B0042 | Driver Stage 2 deployment loop resistance low |
| B0043 | Driver Stage 2 deployment loop short to ground or voltage |
| B0044 | Driver Stage 2 deployment loop resistance high |
| B0045 | Driver side impact deployment loop short to ground or voltage |
| B0051 | Deployment commanded |
| B0053 | Deployment commanded with loop malfunction |
| B0077 | Driver SIS valid identification message not received |
| B0078 | Passenger SIS valid identification message not received |
| B0079 | Driver SIS identification not correct |
| B0080 | Driver SIS NOK message |
| B0081 | Passenger SIS identification not correct |
| B0082 | Passenger SIS NOK message |
| B0100 | Driver-side EFS valid identification not received |
| B0101 | Driver-side EFS NOK message |
| B0102 | Driver-side EFS incorrect identification message |
| B0103 | Passenger-side EFS valid identification not received |
| B0104 | Passenger-side EFS NOK message |
| B0105 | Passenger-side EFS incorrect identification message |
| B1000 | SDM malfunction |
| B1001 | Option configuration error |
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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.