Reference meaning
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.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.
Scan worksheet →Manufacturer communications
26Original wording in English
AUDI
This bulletin provides information when there is an electrical system warning; DTC U046900 stored in the ECM.
AUDI
This TSB provides info when there is a 48V vehicle electrical system warning, DTC U046900 stored in the ECM.
AUDI
This bulletin provides information when there is an MHEV Electrical System Fault with DTC U046900 / 34763; U002900/U002800.
AUDI
This TSB provides info when there is a 48V vehicle electrical system warning, DTC U046900 stored in the ECM.
Check vehicle applicability
174A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.