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.
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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 277 (BODY CONTROL MODULES)SELF-DIAGNOSTIC SYSTEMHYDRAULIC BRAKES DIAGNOSTIC SYSTEM CHECK
2004 Oldsmobile Bravada AWD
Hydraulic Brakes Diagnostic System Check
2004 Oldsmobile Bravada AWDSECTION Hydraulic Brakes Diagnostic System Check
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
- Connect scan tool to Data Link Connector (DLC). DLC is located below driver side of instrument panel, near steering column. If scan tool powers up, go to next step. If scan tool does not power up, perform TEST A: SCAN TOOL DOES NOT POWER UP under SYSTEM TESTS.
- Turn ignition switch to RUN position. Using scan tool, attempt to communicate with Driver Information Center (DIC), Electronic Brake Control Module (EBCM) and Instrument Panel Cluster (IPC). If scan tool communicates with DIC, EBCM and IPM, go to next step. If scan tool does not communicate with DIC, EBCM and IPC, perform TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS.
- Using scan tool, select DISPLAY DTCs for DIC, EBCM and IPC. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, repair disc brakes by symptom. See DISC article in BRAKES.
- If scan tool does not displays any DTCs which begin with "U", go to next step. If scan tool displays any DTCs which begin with "U", perform TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS.
- If scan tool does not display DTCs B1004 or B1007, go to next step. If scan tool displays DTCs B1004 or B1007, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
- If scan tool does not display DTCs B1327, B1513 or B1514, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .If scan tool displays DTCs B1327, B1513 or B1514, perform appropriate test. See DIAGNOSTIC TESTS in GENERATORS & REGULATORS - AURORA article in ELECTRICAL.
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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.