B1551 on 2021-2024 Ford Bronco — Radio/Tuner (HD Radio) Module Malfunction
1 vehicles · 1 makes
Most Reported On
B1551 is an OBD-II diagnostic trouble code meaning “Radio/Tuner (HD Radio) Module Malfunction.” B1551 is a manufacturer-specific body code that, on several applications (e.g., Toyota/Lexus), indicates a malfunction in the radio/HD Radio tuner module, meaning the audio system detected a tuner hardware or communication fault. Symptoms are limited to the audio/infotainment system, such as loss of radio reception, poor signal quality, or no audio. It does not affect drivability or safety. Because meaning can vary by maker, confirm against your vehicle's service data. This code is most commonly reported on 2021-2024 Ford Bronco.
Common Causes
Diagnostic Tools
To diagnose B1551, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
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A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
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LAUNCH CRP123X OBD-II Scanner
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A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
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Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
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- Oil reset, EPB, BMS, TPMS, injector coding
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FAQ
What does B1551 mean?
B1551 stands for "Radio/Tuner (HD Radio) Module Malfunction." B1551 is a manufacturer-specific body code that, on several applications (e.g., Toyota/Lexus), indicates a malfunction in the radio/HD Radio tuner module, meaning the audio system detected a tuner hardware or communication fault. Symptoms are limited to the audio/infotainment system, such as loss of radio reception, poor signal quality, or no audio. It does not affect drivability or safety. Because meaning can vary by maker, confirm against your vehicle's service data.
What are the most common causes of B1551?
The most common causes of B1551 are: Faulty radio/HD Radio tuner module, Antenna or antenna-cable fault, Wiring or connector problem at the tuner, Software/programming glitch in the audio system, Loss of power or ground to the tuner, Faulty audio/head unit module. The specific cause varies by vehicle.
How much does it cost to fix B1551?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by B1551?
Au7o has documented B1551 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.