benbrown1
C30 BUS System Cable Issue
Summary of the thread
A 2008 Volvo C30 is experiencing sporadic errors in driving mode, error lamps, audio/navigation failures, and temporary control unit shutdowns, suspected to be caused by a BUS system cable issue. A similar case was resolved by identifying defective cable connections in the BUS system, which were replaced by a certified workshop. The suggested solution is to have the vehicle checked by professionals to confirm and fix the cable connection issue.
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4 comment(s)
benbrown1 (community.author)
They were acting erratically, mostly. I did a scan and it pointed to the control module. Did yours throw the same code? And were you able to fix it?
andreasraven5
Yes, that's exactly what happened to me. The diagnostic pointed to a defective cable connection on the BUS system and some sporadic errors. The only way was to get this checked by a certified workshop. After replacing the defective cable connections, the issues disappeared. It might be the same with you.
benbrown1 (community.author)
Thanks for the confirmation. I'll take it to the shop. They quoted around 155€, so hopefully that will solve it.
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VOLVO
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C30
andreasraven5
That sounds eerily familiar! I had similar gremlins in my C30. Were the systems failing completely, or just acting erratically? Did you run a scan tool to check for any specific codes?