liamfrank27
Astra MOST Bus Fault
Summary of the thread
A 2023 Vauxhall Astra with an electric engine is experiencing a complete failure of the audio system and satellite navigation, with diagnostics indicating a MOST bus fault. This suggests a possible failure of a control unit within the MOST bus network. The recommended solution is to consult a qualified technician with expertise in automotive bus systems to accurately diagnose and repair the issue.
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4 comment(s)
liamfrank27 (community.author)
No recent software installations, and no electrical work done either. Just happened out of the blue. Did your issue present exactly the same? And did you manage to fix it?
rudolf_miller9
Yes, your description mirrors the problems I had. The absence of any recent modifications further suggests a component failure within the MOST bus network. Unfortunately, diagnosing the specific faulty control unit requires specialized equipment and expertise. I would recommend consulting a qualified technician experienced in automotive bus systems to accurately pinpoint the defect. In my case it turns out to be costly.
liamfrank27 (community.author)
Cheers for the advice. Sounds like it's workshop time then. I was hoping it might be a simple fix, but a MOST bus issue definitely seems like something best left to the pros. Looks like I'll be shelling out around 1000€ for this one.
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VAUXHALL
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ASTRA
rudolf_miller9
I seem to recall experiencing something similar some time ago with my Astra. The symptoms you describe, particularly the audio and navigation failure coupled with the MOST bus error, resonate with a problem I encountered. Was there anything unusual in the moments preceding this issue, such as a software installation or electrical work?