danielscholz58

Peugeot 308 Hybrid ECU Error

Hey Peugeot community, having a big issue with my 2023 Peugeot 308 hybrid. It's done 221099 km, and the engine control unit seems faulty. Getting reduced engine power and a persistent error. Anyone else seen this?

A 2023 Peugeot 308 hybrid experienced reduced engine power due to a suspected faulty engine control unit (ECU). The issue was identified as a main relay malfunction, confirmed by error codes. A diagnostic check and subsequent repair of the main relay resolved the problem, restoring the vehicle's performance.

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4 comment(s)

I've got a 308, but not a hybrid. Sounds familiar though. What error codes are you getting from the ECU?

Thanks for the quick reply. The error code points to a main relay malfunction. Does that match what you saw?

Yep, the relay was the problem for me too. Worth getting a proper diagnostic check, though. Mine was sorted at the workshop, could save you a headache.

Your insight was spot on. It was the main relay. The repair cost 120€ and fixed everything. Thanks!

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