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
6Original wording in English
FORD, LINCOLN
Some 2025 Explorer Active/Police Interceptor® Utility/Expedition/Navigator/Nautilus vehicles may exhibit diagnostic trouble codes (DTCs) B1A01:01, B1A02:01, B1A03:01, B1A04:01, B1A05:01 and/or B1A06:01 in the audio front control module (ACM) with no customer symptoms. This condition does not affect vehicle durability and no addi…
FORD
Some 2025 Explorer Active/Police Interceptor® Utility vehicles may exhibit diagnostic trouble codes (DTCs) B1A01:01, B1A02:01, B1A03:01, B1A04:01, B1A05:01 and/or B1A06:01 in the audio control module (ACM) with no customer symptoms.
FORD
Some 2025 Explorer Active/Police Interceptor Utility vehicles may exhibit diagnostic trouble codes (DTCs) B1A01:01, B1A02:01, B1A03:01, B1A04:01, B1A05:01 and/or B1A06:01 in the audio control module (ACM).
FORD
Some 2025 Explorer XLT/Police Interceptor Utility vehicles may exhibit diagnostic trouble codes (DTCs) B1A01:01, B1A02:01, B1A03:01, B1A04:01, B1A05:01 and/or B1A06:01 in the audio control module (ACM).
Check vehicle applicability
50A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A4 ↗ | 2022 |
| Audi | A4 ↗ | 2021 |
| Audi | A4 ↗ | 2020 |
| Audi | A5 ↗ | 2022 |
| Audi | A5 ↗ | 2021 |
| Audi | A5 ↗ | 2020 |
| Audi | A5 CABRIOLET ↗ | 2021 |
| Audi | A5 CABRIOLET ↗ | 2020 |
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.