FelixLeman
S60 hybrid defective ECU
Summary of the thread
The conversation revolves around a 2016 Volvo S60 hybrid experiencing reduced engine power, with an error indicating a defective engine control unit (ECU). The initial query questions whether a defective main relay could be the cause. A similar issue in another vehicle was resolved by replacing a faulty ECU, suggesting that cleaning contacts or consulting a trusted workshop might be beneficial. Ultimately, it was identified that a faulty main relay caused the defective ECU, with repair costs around 120€.
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4 comment(s)
FelixLeman (community.author)
I've tested the battery and alternator, and they seem fine. Could you share more about the issues you had with your Opel and how they were fixed?
simonscholz1
The errors persisted even after a new battery. It turned out to be a faulty ECU, which needed to be replaced. Try cleaning the contacts first, but I'd suggest a trusted workshop.
FelixLeman (community.author)
A faulty main relay caused the defective ECU. Repair costs were about 120€.
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VOLVO
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S60
simonscholz1
I had similar symptoms with my 2018 Opel Insignia hybrid. The computer module was throwing errors. Have you checked the battery and alternator?