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.
P172400Control Module Malfunctioning, SporadicManufacturer communications
3Original wording in English
AUDI
Reported code forms P172400
Customer may report transmission warning light comes on. No drivability/starting concerns. GFF scan shows DTC P172400 (Control Module Malfunctioning, Sporadic), stored in the transmission control module (TCM), J217…
AUDI
Reported code forms P172400
Customer may report transmission warning light comes on. No drivability/starting concerns. GFF scan shows fault code: P172400 Starter Interlock Signal - short to Ground (GND) Sporadic, stored in the Transmission control…
AUDI
Reported code forms P172400
Customer may report transmission warning light comes on. No drivability/starting concerns. GFF scan shows fault code- P172400 Starter Interlock Signal - short to Ground (GND) Sporadic, stored in the Transmission control…
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 | A4 ALLROAD | 2013 |
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.