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 MANUALSAUDI1999A4 BASE, 1.8 B, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK BRAKE SYSTEM
1999 Audi A4 Base, 1.8 B, Automatic
Anti-Lock Brake System
1999 Audi A4 Base, 1.8 B, AutomaticSECTION Anti-Lock Brake System
- Description
- Operation
- Bleeding Brake System
- Servicing
- Trouble Shooting
- Diagnosis
- DTC Definitions
- Diagnostic Tests
- DTC 00000: No Fault Detected
- DTC 00283: Left Front Wheel Speed Sensor
- DTC 00285: Right Front Wheel Speed Sensor
- DTC 00287: Right Rear Wheel Speed Sensor
- DTC 00290: Left Rear Wheel Speed Sensor
- DTC 00301: Return Flow Pump
- DTC 00526: Stoplight Switch
- DTC 00529: Rpm Signal Missing
- DTC 00532: Supply Voltage
- DTC 00597: Varying Wheel Speed Impulse
- DTC 00623: Abs/Transmission Electrical Connection
- DTC 00646: Abs Motor Electrical Connection No. 1
- DTC 00647: Abs Motor Electrical Connection No. 2
- DTC 00761: DTC Stored In Pcm
- DTC 01130: Abs Operation Implausible Signal
- DTC 01200: Abs Valves Voltage Supply
- DTC 01201: Abs Pump Voltage Supply
- DTC 01203: Instrument Panel Abs Pump Voltage Supply
- DTC 65535: Control Module Fault
- Abs Module Circuits
- Circuit Tests
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagrams
RENDER: 1.0x
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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.