2020年7月24日 · B7F805 - This fault code is entered when an open circuit in the DAB L Band aerial line is detected. This check is carried out when the headunit is started and after certain diagnosis requests. Anyone had similar experiences and can someone guide me to check lines and plug connections between headunit and DAB L band aerial?

Error Code: B7F805: Connection Head-Unit to DAB L-Band Antenna base: Line interruptio Hi there, Does anyone know what the following error is and how to resolve it at al please?

2022年6月25日 · So, I recently picked up a 2017 BMW F80 M3 from EAG Specialists. When I went to buy the car, I did a Carly scan and found a few errors, namely B7F805 & D90D37. B7F805 = "Short circuit to plus right speaker / Connection head …

2023年10月6日 · BU shows B7F805 - DAB L band antenna fault and E1C448 MOST - current configuration incomplete. Great, i thought, loose / dirty antenna connection on the Head Unit. I erased them and the E1C448 disappears but then returns. The B7F805 never erases.

2021年8月2日 · But it appears I have a DAB L-band antenna wiring fault and a short circuit in plus right speaker (B7F805) 400031 - electronic pressure control valve 4, short to ground - seems to be transmission related.

2023年10月5日 · BU shows B7F805 - DAB L band antenna fault and E1C448 MOST - current configuration incomplete. Great, i thought, loose / dirty antenna connection on the Head Unit. I erased them and the E1C448 disappears but then returns. The B7F805 never erases.

2023年9月22日 · b7f805 l波段天线：线路开路 为了解释我们在扫描车辆过程获得的故障码，我们必须对术语进行解读，因为通用诊断工具通常对制造商组件使用不同的描述！

2023年12月19日 · EXCEPT for this very weird black CID issue. Basically after the car goes to sleep for longer than 30 minutes (all button lights are off, all ECUs supposedly reset to default state) sometimes, maybe 1 in 4 times, when I turn on the engine/ignition the CID screen stays black! Mind you, it doesn't say 'no signal', it just doesn't come alive!

2022年12月20日 · Die DAB-L Antenne sitzt in der Dachflosse hat aber keine Verwendung mehr da auf diesen Frequenzen nichts mehr gesendet wird. Aktuelles DAB+ (auf DAB-Band III) wird beim G31 über die hintere kleine Seitenscheibe (Fahrerseite) empfangen, auf der ist die Antenne für DAB-III "aufgedampft".

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