U0546: The front entertainment control unit is sending data that cannot be used
The front entertainment control unit is sending data that cannot be used. It is usually that control unit, its power supply or the network wiring.
| Code | U0546 |
|---|---|
| System | Communication network |
| Group | U05xx, Invalid data between control units |
| Type | Generic: it means the same on every make |
How to read and clear U0546 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see U0546 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- U0542 The headlight control unit A is sending data that cannot be used
- U0543 The headlight control unit B is sending data that cannot be used
- U0544 The parking assistance control unit B is sending data that cannot be used
- U0545 Invalid data arrives from the powered running board control unit
- U0547 The seat control unit E is sending data that cannot be used
- U0548 The seat control unit F is sending data that cannot be used
- U0549 The remote accessory module is sending data that cannot be used
- U054A The rear entertainment control unit B is sending data that cannot be used
What does code U0546 mean?
The front entertainment control unit is sending data that cannot be used. It is usually that control unit, its power supply or the network wiring.
How do you clear U0546?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, U0546 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
