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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 79 (ON BOARD DIAGNOSTIC (OBD) - CENTRAL LOCKING SYSTEM, MEMORY SEATS, ULTRASONIC INTERIOR MONITOR)CENTRAL LOCKING SYSTEM, ON BOARD DIAGNOSTIC (OBD)DIAGNOSTIC TROUBLE CODE (DTC) TABLE
1996 Audi A4 Base, Standard
Diagnostic Trouble Code (DTC) table
1996 Audi A4 Base, StandardSECTION Diagnostic Trouble Code (DTC) table
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Listed in the following in ascending order of 5-digit DTCs are all the malfunctions which can be detected by the central locking control module and printed out on V.A.G 1551.
- The DTC only appears on the printout.
- Before replacing components found to be faulty, use wiring diagram to check wiring and connectors to these components as well as Ground connections.
- On completion of repair work, always check DTC Memory again with V.A.G 1551 Scan Tool (ST) and erase it. The vehicle is then to be locked again (with key or remote control) and the DTC Memory re-checked.
- All static and sporadic DTCs are stored in the DTC Memory: Malfunctions are recognized as being static as soon as they occur. If a malfunction is then no longer present, it is stored as being sporadic and "/SP" appears on the right of the display.
- After switching on ignition, all DTCs present are set to sporadic and only stored as being static if they are still present after checking.
- Sporadic DTCs which do not re-occur in the course of 50 opening cycles are erased.
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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.