lukaslorenz54
Seat Inca audio system failure
Summary of the thread
A 2001 Seat Inca experienced a complete audio system failure, with diagnostic scans indicating a MOST bus fault. The issue was suspected to be a defect in one of the control units on the bus. After checking connections and consulting a workshop, the problem was identified as a faulty amplifier, which was replaced and reprogrammed, resolving the issue at a cost of 1000€.
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4 comment(s)
lukaslorenz54 (community.author)
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?
christophersturm10
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.
lukaslorenz54 (community.author)
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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SEAT
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INCA
christophersturm10
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.