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 RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 702 (ANTI-LOCK BRAKE SYSTEM)
2004 Oldsmobile Bravada RWD
Section 702 (Anti-Lock Brake System)
2004 Oldsmobile Bravada RWDSECTION Section 702 (Anti-Lock Brake System)
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic & Routing Diagrams
- Component Locator
- Diagnostic Information & Procedures
- Diagnostic Starting Point - Anti-Lock Brake System
- Diagnostic System Check - ABS
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC C0221, C0222, C0223, C0225, C0226, C0227: Wheel Speed Sensor Fault
- DTC C0229: Drop Out of Front Wheel Speed Signals
- DTC C0235, C0236, C0237, P1504: Rear Wheel Speed Signal Fault & Vehicle Speed Output Circuit
- DTC C0238: Wheel Speed Mismatch
- DTC C0241, C0242, C0245, C0246, C0251, C0252, C0253 & C0254: EBCM Control Valve Circuit Malfunction
- DTC C0265, C0266: EBCM Relay Circuit
- DTC C0267, C0268: Pump Motor Circuit Open/Shorted
- DTC C0269, C0274: Excessive Dump/Isolation Time
- DTC C0271, C0274, C0273, C0284: EBCM Malfunction
- DTC C0279: Powertrain Configuration Not Valid
- DTC C0281: Brake Switch Circuit
- DTC C0283 (w/NW7, Traction Control): Traction Switch Shorted to Ground
- DTC C0287, P1644, P1689: Delivered Torque Circuit & Traction Control Delivered Torque Output Circuit
- DTC C0290, C0292: Lost Communications With PCM
- DTC C0297: Powertrain Configuration Data Not Received
- DTC C0298, P1571: Powertrain Indicated Traction Control Malfunction & Traction Control Torque Request Circuit
- Symptoms - Anti-Lock Brake System
- ABS Indicator Always On
- ABS Indicator Inoperative
- Low Traction Indicator Always On
- Low Traction Indicator Inoperative
- Traction Off Indicator Always On
- Traction Off Indicator Inoperative
- Repair Instructions
- Description & Operation
- ABS Description & Operation
- Special Tools & Equipment
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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.