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 communications
9Original wording in English
FORD, LINCOLN
Reported code forms B1A03:01
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…
FORD
Reported code forms B1A03:01
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…
FORD
Reported code forms B1A03:01
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
Reported code forms B1A03:01
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).
MAZDA
Reported code forms B1A03:2B
Some customers may complain that the warning sound in the passenger compartment (notifies i-ACTIVSENSE warnings, seat belt warning etc.) is too loud. Some of the volume settings in the notification and warning amplifier…
FORD
Reported code forms B1A03:01
Some 2025 Explorer XLT/Police Interceptor Utility vehicles may exhibit diagnostic trouble code (DTCs) B1A01:01, B1A02:01, B1A03:01, B1A04:01, B1A05:01 and/or B1A06:01 in the audio control module (ACM). This may be due a…
Check vehicle applicability
10A 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.
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.