lukaslorenz54

Seat Inca audio system failure

I'm at my wit's end with my 2001 Seat Inca, gasoline engine, with 177675 km. The audio system is dead, navigation is non-functional, and diagnostic scans keep throwing up a MOST bus fault. No audio! Is it just me, or is car electronics becoming complex? The error memory confirms the bus system issue. I suspect a defect in one of the control units on the bus. I am anticipating repair costs near 1000€. Any ideas before I give up?

4 comment(s)

MOST bus fault sounds like a headache. Is the error always present, or does it come and go? Have you checked the physical connections to all the devices on the MOST bus? Sometimes a loose connector can cause intermittent issues.

That's a good point about the connections. Where should I be looking for these connectors? Are there any specific tools I'd need to access them?

The connectors are typically located at the back of each device connected to the MOST bus, such as the radio, amplifier, navigation unit, etc. You might need trim removal tools to access them. Given the complexity of the MOST bus and the potential cost, it might be best to get it checked by a workshop with experience in automotive bus systems.

After checking all connectors and finding nothing, I took the Inca to a workshop equipped to diagnose MOST bus systems. They pinpointed a faulty amplifier. Replacement and reprogramming cost me 1000€, as predicted, but at least the audio and navigation are working. Thanks!

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