What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P1724signal for immobilizer, short circuit to groundManufacturer communications
3Original wording in English
AUDI
Reported code forms P1724
Supersedes Technical Service Bulletin Group 35 number 13-11 dated June 11, 2013. One or multiple transmission-related concerns may be present. Harsh downshifting of multiple gears: 7-5, 4-3, 2-1. This may happen during…
AUDI
Reported code forms P1724
Drivability concerns or P1724 fault stored S-Tronic Transmission.
AUDI
Reported code forms P1724
Supersedes Technical Service Bulletin Group 35 number 11-02 dated November 8, 2011. Harsh downshifting multiple gears 7-5, 4-3, 2-1. This may happen during just one of these shifts. A bump felt after coming to a stop…
Check vehicle applicability
1A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | S4 | 2011 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.