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 MANUALSAUDI1996A4 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK BRAKE SYSTEM/TRACTION CONTROLDIAGNOSIS & TESTINGRETRIEVING DTCS
1996 Audi A4 Base, Standard
RETRIEVING DTCs
1996 Audi A4 Base, StandardSECTION RETRIEVING DTCs
- Connect VAG 1551 scan tool. See EQUIPMENT HOOK-UP . Turn ignition on. Access SELECT FUNCTION menu selection screen. Enter 02 to select CHECK DTC MEMORY. Press "Q" key to confirm input.
- If NO DTC RECOGNIZED message is displayed on scan tool, enter 06 END OUTPUT. If any DTCs are displayed, print out or write down DTC in order they are output. Proceed to applicable DTC test and perform repair. After repair is complete, clear DTCs and recheck DTCs to ensure fault is repaired. See CLEARING 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.